Short Term Acute Care HospitalVoluntary Non-Profit - Private

Walnut Creek Medical Center

Kaiser Permanente · Walnut Creek, CA

1425 South Main Street, Walnut Creek, CA 94596(925) 295-4000

3 of 5

CMS star rating

249

Beds

13,400

Inpatient discharges a year

$794.6M

Net patient revenue a year

In-network payers

About this hospital

Walnut Creek Medical Center is a 249-bed voluntary non-profit - private hospital in Walnut Creek, CA, affiliated with Kaiser Permanente. Below you'll find publicly disclosed negotiated rates and facility details, including 3 in-network payers.

Rural referral center
Reclassified as rural

CCN: 050072
NPI: 1639244262
Health system: Kaiser Permanente
Teaching: Teaching hospital
County: Contra Costa County
Metro area: San Francisco-Oakland-Fremont, CA MSA
Medicare contractor: Jurisdiction E, Noridian Healthcare Solutions (01011)
In Medicare since: 1966
Last CMS survey: 2013

Negotiated Rates

The data below comes from CMS-mandated price transparency data. Learn more.

Book a call about hospital compliance MRFs

No contract information available for this hospital.

Contract data may be available through direct hospital inquiry.

Insurance Accepted

Acceptance varies by plan and service. Confirm coverage with your insurer or the hospital's billing department.

Group Health Cooperative of South Central WisconsinHometown HealthKaiser Permanente

More about this hospital

Quality
3 of 5 stars
- No Medicare readmissions penalty
See quality ratings
Doctors and services
Accredited by The Joint Commission
- Teaching hospital
- 25 services
- 248 affiliated clinicians
See doctors and services
Finances
$794.6M net patient revenue
- Operating margin on patient care -4.0%
- $25.2M unreimbursed and uncompensated care
- -$24.6M net income
See finances
Ownership and leadership
Owned by Kaiser Foundation Hospitals
- Private (not for profit)
- Carrie A Owen Plietz, chief executive
See ownership and leadership

Location

1425 South Main Street, Walnut Creek, CA 94596

(925) 295-4000

Get directions

Quality ratings (CMS Care Compare)

How Walnut Creek Medical Center compares with other US facilities on the measures CMS publishes, mostly from Medicare patients.

Overall star rating
3 of 5
Lower than 42% of US hospitals
Combines death rates, safety, readmissions, patient experience and timely care
Death rates
No different on 1 measures
0 better, 1 no different, 0 worse than the US rate
Deaths within 30 days, such as after a heart attack, pneumonia or stroke
Safety
Better on 2 of 6 measures
2 better, 4 no different, 0 worse than the US rate
Infections, surgical complications and other harm in the hospital
Readmissions
No different on 1 measures
0 better, 1 no different, 0 worse than the US rate
Patients back in the hospital or ER soon after leaving
Patient survey rating
3 of 5
Lower than 40% of US hospitals
From the HCAHPS survey of recent inpatients
Would definitely recommend
70%
Lower than 53% of US hospitals
US median: 71%
Surveyed patients who would definitely recommend the hospital
Hospital-acquired condition penalty
Not penalized
Not among the worst-performing 25%
Medicare cuts payments 1% for the worst-performing 25% of hospitals on infections and injuries acquired in the hospital
Serious complications (PSI 90)
1.14
Higher than 84% of US hospitals
US median: 0.96
Risk-adjusted composite of complications such as bedsores, falls with hip fracture and blood clots after surgery; lower is better
Sepsis care
63%
Lower than 55% of US hospitals
US median: 65%
Patients with severe sepsis or septic shock who got every step of the recommended early treatment; higher is better

Measure details and reporting periods

Measure	Result	Period
Overall star ratingCMS: Overall hospital quality star rating	3 of 5
Death rates	No different on 1 measures
Safety	Better on 2 of 6 measures
Readmissions	No different on 1 measures
Patient survey ratingCMS: Summary star rating	3 of 5	2024-10-01 to 2025-09-30
Would definitely recommendCMS: "YES", patients would definitely recommend the hospital	70%	2024-10-01 to 2025-09-30
Hospital-acquired condition penaltyCMS: HAC Reduction Program payment reduction	Not penalized	2026
Serious complications (PSI 90)CMS: Patient safety and adverse events composite (PSI 90)	1.14	2022-07-01 to 2024-06-30
Sepsis careCMS: Appropriate care for severe sepsis and septic shock	63%	2024-10-01 to 2025-09-30

Source: CMS Provider Data Catalog, released 2026-08-13. US comparisons rank this facility among every facility CMS reports for each measure. See Medicare Care Compare.

Medicare quality penalties and bonuses

How Medicare adjusts Walnut Creek Medical Center's inpatient payments for its readmissions, quality and cost results.

No penalty
Readmissions penalty
Hospital Readmissions Reduction Program adjustment for excess readmissions, as estimated in the FY 2027 IPPS final rule.
+0.56% on Medicare payments
Value-based purchasing
Hospital Value-Based Purchasing bonus or reduction for quality and cost, as estimated in the FY 2027 IPPS final rule.

Source: CMS IPPS final rule Impact File (FY 2027).

Every CMS quality measure

Each result CMS publishes for Walnut Creek Medical Center, beside the US median and the average of CA hospitals. The rank says what share of US hospitals the result is better or worse than; counts and confidence limits are not ranked.

Deaths and complications19 measures

Risk-adjusted 30-day death rates and surgical complications; lower is better.

Measure	Walnut Creek Medical Center	US median	CA average	CMS comparison	US rank
Rate of complications for hip/knee replacement patients2023-04-01 to 2025-03-31	Not Available		4.075
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality Rate2024-07-01 to 2025-06-30 · 3,449 cases	4.2	3.9	3.81		Worse than 63% of US hospitals
Death rate for heart attack patients2022-07-01 to 2025-06-30	Not Available		11.57
Death rate for CABG surgery patients2022-07-01 to 2025-06-30	Not Available		2.379
Death rate for COPD patients2022-07-01 to 2025-06-30	Not Available		8.235
Death rate for heart failure patients2022-07-01 to 2025-06-30	Not Available		10.29
Death rate for pneumonia patients2022-07-01 to 2025-06-30	Not Available		14.49
Death rate for stroke patients2023-07-01 to 2025-06-30 · 264 cases	9	11.6	11.57		Better than 93% of US hospitals
Pressure ulcer rate2022-07-01 to 2024-06-30 · 528 cases	0.45	0.51	0.4818	No Different Than the National Rate	Better than 59% of US hospitals
Death rate among surgical inpatients with serious treatable complications2022-07-01 to 2024-06-30	Not Available		171	Number of Cases Too Small
Iatrogenic pneumothorax rate2022-07-01 to 2024-06-30 · 606 cases	0.2	0.2	0.21	No Different Than the National Rate	Better than 46% of US hospitals
In-hospital fall-associated fracture rate2022-07-01 to 2024-06-30 · 612 cases	0.27	0.27	0.261	No Different Than the National Rate	Worse than 46% of US hospitals
Postoperative hemorrhage or hematoma rate2022-07-01 to 2024-06-30 · 92 cases	2.28	2.29	2.308	No Different Than the National Rate	Better than 51% of US hospitals
Postoperative acute kidney injury requiring dialysis rate2022-07-01 to 2024-06-30	Not Available		1.668	Number of Cases Too Small
Postoperative respiratory failure rate2022-07-01 to 2024-06-30 · 30 cases	14.08	8.88	9.555	No Different Than the National Rate	Worse than 93% of US hospitals
Perioperative pulmonary embolism or deep vein thrombosis rate2022-07-01 to 2024-06-30 · 103 cases	3.35	3.4	3.521	No Different Than the National Rate	Better than 55% of US hospitals
Postoperative sepsis rate2022-07-01 to 2024-06-30	Not Available		5.495	Number of Cases Too Small
Postoperative wound dehiscence rate2022-07-01 to 2024-06-30 · 36 cases	1.75	1.72	1.796	No Different Than the National Rate	Worse than 66% of US hospitals
Abdominopelvic accidental puncture or laceration rate2022-07-01 to 2024-06-30 · 126 cases	1.02	1.02	1.061	No Different Than the National Rate	Better than 48% of US hospitals

Readmissions and return visits14 measures

Unplanned returns to a hospital after a stay or an outpatient procedure; lower is better.

Measure	Walnut Creek Medical Center	US median	CA average	CMS comparison	US rank
Hospital return days for heart attack patients2022-07-01 to 2025-06-30	Not Available		11.09
Hospital return days for heart failure patients2022-07-01 to 2025-06-30	Not Available		7.901
Hospital return days for pneumonia patients2022-07-01 to 2025-06-30	Not Available		16.67
Hybrid Hospital-Wide All-Cause Readmission Measure (HWR)2024-07-01 to 2025-06-30	Not Available
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)2022-01-01 to 2024-12-31	Not Available		12.91	Number of Cases Too Small
Rate of inpatient admissions for patients receiving outpatient chemotherapy2024-01-01 to 2024-12-31	Not Available		11.39	Number of Cases Too Small
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy2024-01-01 to 2024-12-31	Not Available		5.546	Number of Cases Too Small
Ratio of unplanned hospital visits after hospital outpatient surgery2024-01-01 to 2024-12-31	Not Available		1.001	Number of cases too small
Acute Myocardial Infarction (AMI) 30-Day Readmission Rate2023-07-01 to 2025-06-30 · 296 cases	13.6	14.4	14.43		Better than 83% of US hospitals
Rate of readmission for CABG2023-07-01 to 2025-06-30	Not Available		11.19
Rate of readmission for chronic obstructive pulmonary disease (COPD) patients2023-07-01 to 2025-06-30 · 161 cases	19.6	19.8	19.94		Better than 58% of US hospitals
Heart failure (HF) 30-Day Readmission Rate2023-07-01 to 2025-06-30 · 764 cases	22.9	21.3	21.41		Worse than 88% of US hospitals
Rate of readmission after hip/knee replacement2023-07-01 to 2025-06-30	Not Available		5.612
Pneumonia (PN) 30-Day Readmission Rate2023-07-01 to 2025-06-30 · 723 cases	20.3	17.2	17.7		Worse than 99% of US hospitals

Infections36 measures

Standardized infection ratios (1 is the US baseline) and the counts behind them; lower is better.

Measure	Walnut Creek Medical Center	US median	CA average	CMS comparison	US rank
Central Line Associated Bloodstream Infection (ICU + select Wards): Lower Confidence Limit2024-10-01 to 2025-09-30	0.323	0.172	0.2347	No Different than National Benchmark
Central Line Associated Bloodstream Infection (ICU + select Wards): Upper Confidence Limit2024-10-01 to 2025-09-30	1.658	1.504	1.834	No Different than National Benchmark
Central Line Associated Bloodstream Infection: Number of Device Days2024-10-01 to 2025-09-30	8,081	1,370	5,722	No Different than National Benchmark
Central Line Associated Bloodstream Infection (ICU + select Wards): Predicted Cases2024-10-01 to 2025-09-30	7.525	0.9835	5.638	No Different than National Benchmark
Central Line Associated Bloodstream Infection (ICU + select Wards): Observed Cases2024-10-01 to 2025-09-30	6	0	3.347	No Different than National Benchmark
Central Line Associated Bloodstream Infection (ICU + select Wards)2024-10-01 to 2025-09-30	0.797	0.484	0.5696	No Different than National Benchmark	Worse than 74% of US hospitals
Catheter Associated Urinary Tract Infections (ICU + select Wards): Lower Confidence Limit2024-10-01 to 2025-09-30	0.451	0.138	0.2147	No Different than National Benchmark
Catheter Associated Urinary Tract Infections (ICU + select Wards): Upper Confidence Limit2024-10-01 to 2025-09-30	2.041	1.392	1.749	No Different than National Benchmark
Catheter Associated Urinary Tract Infections (ICU + select Wards): Number of Urinary Catheter Days2024-10-01 to 2025-09-30	7,142	1,799	5,308	No Different than National Benchmark
Catheter Associated Urinary Tract Infections (ICU + select Wards): Predicted Cases2024-10-01 to 2025-09-30	6.783	1.377	6.105	No Different than National Benchmark
Catheter Associated Urinary Tract Infections (ICU + select Wards): Observed Cases2024-10-01 to 2025-09-30	7	0	3.273	No Different than National Benchmark
Catheter Associated Urinary Tract Infections (ICU + select Wards)2024-10-01 to 2025-09-30	1.032	0.399	0.5366	No Different than National Benchmark	Worse than 89% of US hospitals
SSI - Colon Surgery: Lower Confidence Limit2024-10-01 to 2025-09-30	0.814	0.2345	0.32	No Different than National Benchmark
SSI - Colon Surgery: Upper Confidence Limit2024-10-01 to 2025-09-30	3.68	2.135	2.433	No Different than National Benchmark
SSI - Colon Surgery: Number of Procedures2024-10-01 to 2025-09-30	153	61	112	No Different than National Benchmark
SSI - Colon Surgery: Predicted Cases2024-10-01 to 2025-09-30	3.763	1.591	2.999	No Different than National Benchmark
SSI - Colon Surgery: Observed Cases2024-10-01 to 2025-09-30	7	1	2.368	No Different than National Benchmark
SSI - Colon Surgery2024-10-01 to 2025-09-30	1.86	0.7155	0.8107	No Different than National Benchmark	Worse than 93% of US hospitals
SSI - Abdominal Hysterectomy: Lower Confidence Limit2024-10-01 to 2025-09-30	Not Available		0.2606
SSI - Abdominal Hysterectomy: Upper Confidence Limit2024-10-01 to 2025-09-30	Not Available		3.273
SSI - Abdominal Hysterectomy: Number of Procedures2024-10-01 to 2025-09-30	67	38	73.49
SSI - Abdominal Hysterectomy: Predicted Cases2024-10-01 to 2025-09-30	0.566	0.328	0.6136
SSI - Abdominal Hysterectomy: Observed Cases2024-10-01 to 2025-09-30	1	0	0.5911
SSI - Abdominal Hysterectomy2024-10-01 to 2025-09-30	Not Available		0.7863
MRSA Bacteremia: Lower Confidence Limit2024-10-01 to 2025-09-30	0.015	0.193	0.3103	No Different than National Benchmark
MRSA Bacteremia: Upper Confidence Limit2024-10-01 to 2025-09-30	1.47	1.855	2.305	No Different than National Benchmark
MRSA Bacteremia: Patient Days2024-10-01 to 2025-09-30	73,244	14,451	52,601	No Different than National Benchmark
MRSA Bacteremia: Predicted Cases2024-10-01 to 2025-09-30	3.355	0.567	3.111	No Different than National Benchmark
MRSA Bacteremia: Observed Cases2024-10-01 to 2025-09-30	1	0	2.166	No Different than National Benchmark
MRSA Bacteremia2024-10-01 to 2025-09-30	0.298	0.597	0.7784	No Different than National Benchmark	Better than 75% of US hospitals
Clostridium Difficile (C.Diff): Lower Confidence Limit2024-10-01 to 2025-09-30	0.098	0.127	0.1925	Better than the National Benchmark
Clostridium Difficile (C.Diff): Upper Confidence Limit2024-10-01 to 2025-09-30	0.367	0.747	0.9502	Better than the National Benchmark
Clostridium Difficile (C.Diff): Patient Days2024-10-01 to 2025-09-30	64,502	13,646	48,317	Better than the National Benchmark
Clostridium Difficile (C.Diff): Predicted Cases2024-10-01 to 2025-09-30	44.98	5.683	27.04	Better than the National Benchmark
Clostridium Difficile (C.Diff): Observed Cases2024-10-01 to 2025-09-30	9	2	9.99	Better than the National Benchmark
Clostridium Difficile (C.Diff)2024-10-01 to 2025-09-30	0.2	0.279	0.383	Better than the National Benchmark	Better than 62% of US hospitals

Patient survey (HCAHPS)68 measures

How recent inpatients answered each survey question, with CMS's star rating per topic.

Measure	Walnut Creek Medical Center	US median	CA average	US rank
Room was "always" clean2024-10-01 to 2025-09-30 · 633 cases	69	73	72.2	Worse than 67% of US hospitals
Room was "sometimes" or "never" clean2024-10-01 to 2025-09-30 · 633 cases	9	8	8.78	Worse than 53% of US hospitals
Room was "usually" clean2024-10-01 to 2025-09-30 · 633 cases	22	18	19.02
Cleanliness - linear mean score2024-10-01 to 2025-09-30 · 633 cases	86	87	86.82	Worse than 53% of US hospitals
Cleanliness - star rating2024-10-01 to 2025-09-30 · 633 cases	3	4	3.514	Worse than 53% of US hospitals
Nurses "always" communicated well2024-10-01 to 2025-09-30 · 633 cases	75	80	75.76	Worse than 78% of US hospitals
Nurse communication - linear mean score2024-10-01 to 2025-09-30 · 633 cases	90	91	89.84	Worse than 66% of US hospitals
Nurses "sometimes" or "never" communicated well2024-10-01 to 2025-09-30 · 633 cases	6	4	5.713	Worse than 76% of US hospitals
Nurse communication - star rating2024-10-01 to 2025-09-30 · 633 cases	3	3	2.855	Worse than 49% of US hospitals
Nurses "usually" communicated well2024-10-01 to 2025-09-30 · 633 cases	19	16	18.53
Doctors "always" communicated well2024-10-01 to 2025-09-30 · 633 cases	78	79	75.81	Worse than 55% of US hospitals
Doctor communication - linear mean score2024-10-01 to 2025-09-30 · 633 cases	91	91	89.11	Better than 45% of US hospitals
Doctors "sometimes" or "never" communicated well2024-10-01 to 2025-09-30 · 633 cases	5	5	7.043	Better than 44% of US hospitals
Doctor communication - star rating2024-10-01 to 2025-09-30 · 633 cases	3	3	2.688	Worse than 37% of US hospitals
Doctors "usually" communicated well2024-10-01 to 2025-09-30 · 633 cases	17	16	17.15
Staff "always" explained2024-10-01 to 2025-09-30 · 633 cases	56	61	58.95	Worse than 77% of US hospitals
Communication about medicines - linear mean score2024-10-01 to 2025-09-30 · 633 cases	74	77	75.75	Worse than 72% of US hospitals
Staff "sometimes" or "never" explained2024-10-01 to 2025-09-30 · 633 cases	24	19	21.56	Worse than 78% of US hospitals
Communication about medicines - star rating2024-10-01 to 2025-09-30 · 633 cases	2	3	2.449	Worse than 53% of US hospitals
Staff "usually" explained2024-10-01 to 2025-09-30 · 633 cases	20	19	19.48
Discharge information - linear mean score2024-10-01 to 2025-09-30 · 633 cases	86	86	84.61	Worse than 45% of US hospitals
No, staff "did not" give patients this information2024-10-01 to 2025-09-30 · 633 cases	14	13	15.03	Worse than 53% of US hospitals
Discharge information - star rating2024-10-01 to 2025-09-30 · 633 cases	3	3	3.08	Worse than 45% of US hospitals
Yes, staff "did" give patients this information2024-10-01 to 2025-09-30 · 633 cases	86	87	84.97	Worse than 53% of US hospitals
No, staff "did not" give patients information about help after discharge2024-10-01 to 2025-09-30 · 633 cases	14	14	16.39	Better than 49% of US hospitals
Yes, staff "did" give patients information about help after discharge2024-10-01 to 2025-09-30 · 633 cases	86	86	83.61	Better than 49% of US hospitals
Doctors "always" explained things so they could understand2024-10-01 to 2025-09-30 · 633 cases	72	74	70.69	Worse than 60% of US hospitals
Doctors "sometimes" or "never" explained things so they could understand2024-10-01 to 2025-09-30 · 633 cases	6	7	8.855	Better than 53% of US hospitals
Doctors "usually" explained things so they could understand2024-10-01 to 2025-09-30 · 633 cases	22	19	20.45
Doctors "always" listened carefully2024-10-01 to 2025-09-30 · 633 cases	77	77	73.94	Worse than 49% of US hospitals
Doctors "sometimes" or "never" listened carefully2024-10-01 to 2025-09-30 · 633 cases	6	6	7.637	Worse than 47% of US hospitals
Doctors "usually" listened carefully2024-10-01 to 2025-09-30 · 633 cases	17	17	18.43
Doctors "always" treated them with courtesy and respect2024-10-01 to 2025-09-30 · 633 cases	85	85	81.99	Worse than 47% of US hospitals
Doctors "sometimes" or "never" treated them with courtesy and respect2024-10-01 to 2025-09-30 · 633 cases	3	3	4.958	Better than 49% of US hospitals
Doctors "usually" treated them with courtesy and respect2024-10-01 to 2025-09-30 · 633 cases	12	11	13.06
Patients who gave a rating of "6" or lower (low)2024-10-01 to 2025-09-30 · 633 cases	9	8	10.01	Worse than 59% of US hospitals
Patients who gave a rating of "7" or "8" (medium)2024-10-01 to 2025-09-30 · 633 cases	27	20	22.36
Patients who gave a rating of "9" or "10" (high)2024-10-01 to 2025-09-30 · 633 cases	64	72	67.63	Worse than 79% of US hospitals
Overall hospital rating - linear mean score2024-10-01 to 2025-09-30 · 633 cases	86	88	86.85	Worse than 69% of US hospitals
Overall hospital rating - star rating2024-10-01 to 2025-09-30 · 633 cases	3	3	3.047	Worse than 45% of US hospitals
Staff "always" explained new medications2024-10-01 to 2025-09-30 · 633 cases	69	74	72.06	Worse than 81% of US hospitals
Staff "sometimes" or "never" explained new medications2024-10-01 to 2025-09-30 · 633 cases	15	9	10.94	Worse than 91% of US hospitals
Staff "usually" explained new medications2024-10-01 to 2025-09-30 · 633 cases	16	16	17
Nurses "always" explained things so they could understand2024-10-01 to 2025-09-30 · 633 cases	70	75	71.11	Worse than 80% of US hospitals
Nurses "sometimes" or "never" explained things so they could understand2024-10-01 to 2025-09-30 · 633 cases	8	5	7.488	Worse than 78% of US hospitals
Nurses "usually" explained things so they could understand2024-10-01 to 2025-09-30 · 633 cases	22	20	21.4
Nurses "always" listened carefully2024-10-01 to 2025-09-30 · 633 cases	70	77	72.49	Worse than 85% of US hospitals
Nurses "sometimes" or "never" listened carefully2024-10-01 to 2025-09-30 · 633 cases	6	4	6.121	Worse than 71% of US hospitals
Nurses "usually" listened carefully2024-10-01 to 2025-09-30 · 633 cases	24	19	21.39
Nurses "always" treated them with courtesy and respect2024-10-01 to 2025-09-30 · 633 cases	83	86	82.8	Worse than 72% of US hospitals
Nurses "sometimes" or "never" treated them with courtesy and respect2024-10-01 to 2025-09-30 · 633 cases	3	3	3.779	Worse than 50% of US hospitals
Nurses "usually" treated them with courtesy and respect2024-10-01 to 2025-09-30 · 633 cases	14	11	13.42
"Always" quiet at night2024-10-01 to 2025-09-30 · 633 cases	35	59	47.5	Worse than 99% of US hospitals
"Sometimes" or "never" quiet at night2024-10-01 to 2025-09-30 · 633 cases	28	9	17.79	Worse than 99% of US hospitals
"Usually" quiet at night2024-10-01 to 2025-09-30 · 633 cases	37	31	34.71
Quietness - linear mean score2024-10-01 to 2025-09-30 · 633 cases	66	82	74.85	Worse than 99% of US hospitals
Quietness - star rating2024-10-01 to 2025-09-30 · 633 cases	1	3	2.203	The lowest rating, shared by 4% of US hospitals
"NO", patients would not recommend the hospital (they probably would not or definitely would not recommend it)2024-10-01 to 2025-09-30 · 633 cases	6	5	7.623	Worse than 55% of US hospitals
"YES", patients would definitely recommend the hospital2024-10-01 to 2025-09-30 · 633 cases	70	71	68.6	Worse than 53% of US hospitals
Recommend hospital - linear mean score2024-10-01 to 2025-09-30 · 633 cases	87	87	85.85	Worse than 49% of US hospitals
"YES", patients would probably recommend the hospital2024-10-01 to 2025-09-30 · 633 cases	24	23	23.77
Recommend hospital - star rating2024-10-01 to 2025-09-30 · 633 cases	4	4	3.431	Better than 42% of US hospitals
Staff "always" explained possible side effects2024-10-01 to 2025-09-30 · 633 cases	42	47	45.33	Worse than 76% of US hospitals
Staff "sometimes" or "never" explained possible side effects2024-10-01 to 2025-09-30 · 633 cases	34	30	32.51	Worse than 69% of US hospitals
Staff "usually" explained possible side effects2024-10-01 to 2025-09-30 · 633 cases	24	22	22.16
Summary star rating2024-10-01 to 2025-09-30 · 633 cases	3	3	2.859	Worse than 40% of US hospitals
No, staff "did not" give patients information about possible symptoms2024-10-01 to 2025-09-30 · 633 cases	14	12	13.94	Worse than 63% of US hospitals
Yes, staff "did" give patients information about possible symptoms2024-10-01 to 2025-09-30 · 633 cases	86	88	86.06	Worse than 63% of US hospitals

Timely and effective care30 measures

How often the hospital gave recommended care, and how fast.

Measure	Walnut Creek Medical Center	US median	CA average	US rank
Emergency department volume2024-01-01 to 2024-12-31	Not Available
Global Malnutrition Composite Score2024-01-01 to 2024-12-31	Not Available
Global Malnutrition Composite Score: Malnutrition Diagnosis Documented2024-01-01 to 2024-12-31	Not Available
Global Malnutrition Composite Score: Malnutrition Risk Screening2024-01-01 to 2024-12-31	Not Available
Global Malnutrition Composite Score: Nutrition Assessment2024-01-01 to 2024-12-31	Not Available
Global Malnutrition Composite Score: Nutritional Care Plan2024-01-01 to 2024-12-31	Not Available
Hospital Harm - Severe Hyperglycemia2024-01-01 to 2024-12-31 · 15,442 cases	8	8	8.289	Better than 47% of US hospitals
Hospital Harm - Severe Hypoglycemia2024-01-01 to 2024-12-31 · 3,231 cases	2	1	1.008	Worse than 72% of US hospitals
Hospital Harm - Opioid Related Adverse Events2024-01-01 to 2024-12-31	Not Available		0.1852
Healthcare workers given influenza vaccination2024-10-01 to 2025-03-31 · 7,517 cases	63	79	69.96	Worse than 74% of US hospitals
Average (median) time all patients spent in the emergency department before leaving from the visit, including psychiatric/mental health patients and patients who were transferred to another facility. A lower number of minutes is better2024-10-01 to 2025-09-30	Not Available		187
Average (median) time patients spent in the emergency department before leaving from the visit, excluding patients transferred to another facility or psychiatric care/mental health patients. A lower number of minutes is better2024-10-01 to 2025-09-30	Not Available		182
Average (median) time psychiatric/mental health patients spent in the emergency department before leaving from the visit. A lower number of minutes is better2024-10-01 to 2025-09-30	Not Available		282
Average (median) time patients spent in the emergency department before being transferred to another facility. A lower number of minutes is better2024-10-01 to 2025-09-30	Not Available		411
Left before being seen2024-01-01 to 2024-12-31	Not Available		2.162
Head CT results2024-10-01 to 2025-09-30	Not Available		75.06
Endoscopy/polyp surveillance: appropriate follow-up interval for normal colonoscopy in average risk patients2024-01-01 to 2024-12-31	Not Available		92.55
Improvement in Patient's Visual Function within 90 Days Following Cataract Surgery2024-01-01 to 2024-12-31	Not Available		80
ST-Segment Elevation Myocardial Infarction (STEMI)2024-01-01 to 2024-12-31	Not Available		48.75
Safe Use of Opioids - Concurrent Prescribing2024-01-01 to 2024-12-31 · 3,229 cases	9	15	13.67	Better than 86% of US hospitals
Appropriate care for severe sepsis and septic shock2024-10-01 to 2025-09-30 · 132 cases	63	65	68.8	Worse than 55% of US hospitals
Septic Shock 3-Hour Bundle2024-10-01 to 2025-09-30 · 36 cases	72	73	76.38	Worse than 51% of US hospitals
Septic Shock 6-Hour Bundle2024-10-01 to 2025-09-30 · 24 cases	75	88	86.64	Worse than 81% of US hospitals
Severe Sepsis 3-Hour Bundle2024-10-01 to 2025-09-30 · 132 cases	77	82	82.89	Worse than 67% of US hospitals
Severe Sepsis 6-Hour Bundle2024-10-01 to 2025-09-30 · 65 cases	97	94	93.98	Better than 69% of US hospitals
Discharged on Antithrombotic Therapy2024-01-01 to 2024-12-31 · 185 cases	95	98	93.4	Worse than 77% of US hospitals
Anticoagulation Therapy for Atrial Fibrillation/Flutter2024-01-01 to 2024-12-31	Not Available		70.68
Antithrombotic Therapy by End of Hospital Day 22024-01-01 to 2024-12-31	Not Available		89.93
Venous Thromboembolism Prophylaxis2024-01-01 to 2024-12-31	Not Available		86.9
Intensive Care Unit Venous Thromboembolism Prophylaxis2024-01-01 to 2024-12-31	Not Available		94.78

Outpatient imaging2 measures

How often scans were ordered when they may not be needed; lower is better.

Measure	Walnut Creek Medical Center	US median	CA average	CMS comparison	US rank
Abdomen CT Use of Contrast Material2024-07-01 to 2025-06-30	0	5	4.959		The best result, shared by 2% of US hospitals
Breast Cancer Screening Recall Rates2024-07-01 to 2025-06-30	Not Available		8.417

Medicare spending per patient1 measure

Medicare spending around an inpatient stay compared with the US (1 is the US median).

Measure	Walnut Creek Medical Center	US median	CA average	CMS comparison	US rank
Medicare hospital spending per patient (Medicare Spending per Beneficiary)2024-01-01 to 2024-12-31	0.88	0.99	1.024		Better than 91% of US hospitals

Value-based purchasing scores9 measures

The scores Medicare uses to raise or lower inpatient payments; higher is better.

Measure	Walnut Creek Medical Center	US median	CA average	US rank
VBP clinical outcomes domain scoreFY 2026	Not Available		30.07
VBP clinical outcomes weighted domain scoreFY 2026	Not Available		7.571
VBP efficiency and cost reduction domain scoreFY 2026	60	10	16.48	Better than 89% of US hospitals
VBP efficiency and cost reduction weighted domain scoreFY 2026	20	2.5	4.567	Better than 93% of US hospitals
VBP person and community engagement domain scoreFY 2026	18	34	28.67	Worse than 83% of US hospitals
VBP person and community engagement weighted domain scoreFY 2026	6	8.75	7.519	Worse than 71% of US hospitals
VBP safety domain scoreFY 2026	33.33	40	45.16	Worse than 61% of US hospitals
VBP safety weighted domain scoreFY 2026	11.11	10	11.79	Better than 56% of US hospitals
VBP total performance scoreFY 2026	37.11	29.5	30.43	Better than 74% of US hospitals

By fiscal year	FY 2021	FY 2023	FY 2024	FY 2025	FY 2026
VBP clinical outcomes domain score	Not Available	Not Available	Not Available	Not Available	Not Available
VBP clinical outcomes weighted domain score	Not Available	Not Available	Not Available	Not Available	Not Available
VBP efficiency and cost reduction domain score	60	10	10	70	60
VBP efficiency and cost reduction weighted domain score	20	2.5	3.333	23.33	20
VBP person and community engagement domain score	12	Not Available	5	5	18
VBP person and community engagement weighted domain score	4	Not Available	1.667	1.667	6
VBP safety domain score	34	Not Available	32	28	33.33
VBP safety weighted domain score	11.33	Not Available	10.67	9.333	11.11
VBP total performance score	35.33	Not Available	15.67	34.33	37.11

Readmissions Reduction Program6 measures

Excess readmission ratios by condition; above 1 means more readmissions than expected.

Measure	Walnut Creek Medical Center	CA average
READM-30-AMI-HRRP2021-07-01 to 2024-06-30	N/A	1.015
READM-30-CABG-HRRP2021-07-01 to 2024-06-30	N/A	1.005
READM-30-COPD-HRRP2021-07-01 to 2024-06-30	N/A	1.002
READM-30-HF-HRRP2021-07-01 to 2024-06-30	N/A	1.017
READM-30-HIP-KNEE-HRRP2021-07-01 to 2024-06-30 · 0 cases	N/A	0.9788
READM-30-PN-HRRP2021-07-01 to 2024-06-30	N/A	1.026

By fiscal year	FY 2021	FY 2022	FY 2023	FY 2024	FY 2025	FY 2026
READM-30-AMI-HRRP	N/A	N/A	N/A	N/A	N/A	N/A
READM-30-CABG-HRRP	N/A	N/A	N/A	N/A	N/A	N/A
READM-30-COPD-HRRP	N/A	N/A	N/A	N/A	N/A	N/A
READM-30-HF-HRRP	N/A	N/A	N/A	N/A	N/A	N/A
READM-30-HIP-KNEE-HRRP	N/A	N/A	N/A	N/A	N/A	N/A
READM-30-PN-HRRP	N/A	N/A	N/A	N/A	N/A	N/A

Hospital-Acquired Condition Reduction Program8 measures

Infection ratios, the PSI 90 composite and the total score Medicare ranks hospitals on; lower is better.

Measure	Walnut Creek Medical Center	US median	CA average	US rank
CAUTI standardized infection ratio2023-01-01 to 2024-12-31	0.727	0.489	0.6114	Worse than 72% of US hospitals
CDI standardized infection ratio2023-01-01 to 2024-12-31	0.574	0.346	0.449	Worse than 79% of US hospitals
CLABSI standardized infection ratio2023-01-01 to 2024-12-31	0.827	0.559	0.679	Worse than 72% of US hospitals
HAC Reduction Program payment reductionFY 2026	No
MRSA standardized infection ratio2023-01-01 to 2024-12-31	0.129	0.6405	0.7204	Better than 87% of US hospitals
Patient safety and adverse events composite (PSI 90)2022-07-01 to 2024-06-30	1.136	0.9628	0.9656	Worse than 84% of US hospitals
SSI standardized infection ratio2023-01-01 to 2024-12-31	0.994	0.7945	0.8116	Worse than 64% of US hospitals
Total HAC scoreFY 2026	0.2989	-0.0453	0.02733	Worse than 70% of US hospitals

By fiscal year	FY 2021	FY 2022	FY 2023	FY 2024	FY 2025	FY 2026
HAC Reduction Program payment reduction	No	Yes	N/A	No	No	No
Total HAC score	0.3143	0.4158	0	0.1728	0.2434	0.2989

Source: CMS Care Compare hospital files, latest release 2026-09-30, with program results for earlier fiscal years from CMS's archived snapshots. US medians and ranks count every hospital CMS reports; state averages are plain means of the state's reporting hospitals, not CMS's patient-weighted state rates.

Accreditation and services

The Joint Commission (since 2013)
Accreditation
Major
Medical school affiliation
Private (not for profit)
Ownership type
362
Medicare-certified beds
150
Registered nurses (full-time equivalent)
1966
In Medicare since

25 services at Walnut Creek Medical Center

Emergency and trauma: Emergency Department
Intensive care: Coronary Care UnitSurgical ICU (Medical Surgical Intensive Care Unit)
Surgery: AnesthesiaInpatient SurgicalOphthalmic SurgeryOR (Operating Room)Outpatient SurgeryPostoperative Recovery Room
Imaging: Diagnostic RadiologyMRI (Magnetic Resonance Imaging)Nuclear Medicine
Transplant and dialysis: Acute Renal Dialysis
Women and children: Clinical LaboratoryObstetrics / Child BirthPediatric Care
Behavioral health: Adult Inpatient Psychiatric Care
Rehabilitation and therapy: OT (Occupational Therapy)PT (Physical Therapy)Respiratory CareSpeech Pathology
Other services: Dietary CareOptometricPharmacySocial Care

Source: CMS Provider of Services file, as reported by the hospital and state surveyors.

Size and patient volume

What Walnut Creek Medical Center reported to Medicare in its latest cost report, covering Jan 1, 2025 to Dec 31, 2025.

13,400
Inpatient discharges
Medicare 3%, Medicaid 1%
59,612
Inpatient days
66% of available bed days used
1,387
Employees (full-time equivalent)
6
Interns and residents (full-time equivalent)

Source: CMS cost report (HCRIS) (report 836072). Figures cover the reporting period, which is not always 12 months, and are self-reported.

Utilization by payer and unit

Inpatient days and discharges Walnut Creek Medical Center reported by payer. Medicare and Medicaid include their managed care plans, shown separately below.

	Medicare	Medicaid	Other	Total
Inpatient days	1,772	711	57,129	59,612
Discharges	339	79	12,982	13,400
Average length of stay	5.2 days	9.0 days	4.4 days	4.4 days
Average daily census	4.9	1.9	156.5	163.3

28,071
Medicare Advantage days
6,254 discharges
393
Medicaid managed care days
91 discharges
11,741
Observation bed days

Beds and days by unit

Unit	Beds	Inpatient days	Medicare days	Occupancy
Adults & pediatrics	200	43,507	1,538	60%
Intensive care unit	24	5,392	234	62%
Nursery		4,958

Source: CMS cost report (HCRIS, Form 2552-10), report 836072, as submitted. Hospitals report these figures themselves; they are not audited financial statements. Worksheet S-3 Part I.

Medicare inpatient stays

What Walnut Creek Medical Center treats Medicare patients for most often, in 2024. 131 Medicare discharges in 5 published DRGs; 0% surgical; 78% in DRGs with complications (CC or MCC).

Condition or procedure	Discharges	Average charges	Average Medicare payment	Estimated cost	DRG weight
Septicemia or severe sepsis without MV >96 hours with MCCMS-DRG 871, medical	74	$112,236	$15,780	$29,967	1.98
Septicemia or severe sepsis without MV >96 hours without MCCMS-DRG 872, medical	16	$50,404	$4,608	$13,458	1.03
Heart failure and shock with MCCMS-DRG 291, medical	15	$91,845	$9,888	$24,523	1.28
Respiratory infections and inflammations with MCCMS-DRG 177, medical	13	$61,608	$9,326	$16,449	1.70
Pulmonary edema and respiratory failureMS-DRG 189, medical	13	$81,881	$7,761	$21,862	1.23

Source: CMS Medicare Inpatient Hospitals by Provider and Service (2024 data, released 2026-04-10), traditional Medicare only; CMS omits DRGs with fewer than 11 discharges. Estimated cost is average charges times the hospital's Medicare cost-to-charge ratio from the IPPS Impact File. Weights are the MS-DRG relative weights for the same year.

Medicare outpatient services

The comprehensive outpatient service groups (APCs) Walnut Creek Medical Center billed Medicare for most in 2024: 60 services in all.

Service group	Services	Patients	Average charges	Average Medicare payment	US average payment
Comprehensive Observation ServicesAPC 8011	49	46	$44,651	$2,933	$2,090
Level 2 Endovascular ProceduresAPC 5192	11		$29,645	$6,237	$4,338

Source: CMS Medicare Outpatient Hospitals by Provider and Service (2024 data, released 2026-06-24), comprehensive APCs for traditional Medicare; CMS omits services with fewer than 11 claims. The US average weights every hospital by its services.

Where patients come from

ZIP codes with the most Medicare inpatient stays at Walnut Creek Medical Center in 2025. Market share is this hospital's part of every hospital's Medicare stays from the ZIP code. Its published Medicare stays went from 4,788 in 2020 to 6,300 in 2025.

ZIP code	Stays	Of this hospital's stays	Days	Charges	Market share	Share in 2020
94553	507	8%	2,246	$28.4M	26%	27%
94521	440	7%	1,935	$25.1M	27%	29%
94595	414	7%	1,799	$22.4M	24%	26%
94550	371	6%	1,522	$18.8M	30%	23%
94523	346	5%	1,580	$20.2M	31%	32%
94518	279	4%	1,189	$15.7M	28%	29%
94566	270	4%	1,108	$13.7M	26%	24%
94583	261	4%	1,117	$14.7M	27%	19%
94598	241	4%	1,057	$13.4M	23%	22%
94526	237	4%	1,066	$13.4M	21%	21%
94551	226	4%	979	$12.9M	30%	22%
94519	217	3%	1,059	$13.5M	36%	32%
94568	216	3%	923	$12.2M	25%	25%
94597	213	3%	972	$12.4M	29%	27%
94520	204	3%	897	$11.6M	20%	25%
94596	196	3%	791	$9.8M	28%	29%
94588	190	3%	760	$9.7M	27%	22%
94549	168	3%	684	$9.2M	19%	21%
94565	167	3%	949	$14.7M	5%	5%
94517	115	2%	543	$6.7M	24%	21%
94506	96	2%	447	$5.9M	15%	17%
94507	92	1%	425	$5.3M	17%	25%
94563	87	1%	323	$3.9M	15%	16%
94582	86	1%	366	$5.1M	18%	15%
94509	85	1%	506	$7.4M	3%	3%

Source: CMS Hospital Service Area file. Shares are of the 6,300 stays from ZIP codes CMS publishes; it omits ZIP codes with fewer than 11 stays, so market shares count published stays only.

Staff and facilities

Staff by profession and the rooms and units Walnut Creek Medical Center reported at its latest Medicare certification survey (2013). Counts are people, not full-time equivalents.

2
Operating rooms
1
Endoscopy rooms
1
Cardiac catheterization rooms

150
Registered nurses
80
Licensed practical nurses
2
Resident physicians
10
Nurse practitioners
10
Nurse anesthetists (CRNAs)
1
Respiratory therapists
1
Physical therapists
1
Occupational therapists
1
Speech pathologists and audiologists
1
Radiology technicians
1
Nuclear medicine technicians
1
Medical technologists
5
Dietitians
4
Social workers
300
Other personnel

Source: CMS Provider of Services file.

Doctors and clinicians

248 clinicians who bill Medicare list Walnut Creek Medical Center as a hospital affiliation. Showing 24 of them. Book a demo to see the commercial rates insurers publish for them, or start a free trial.

Internal Medicine Physician 54
Emergency Medicine Physician 42
Diagnostic Radiology Physician 36
Hospitalist Physician 21
Student in an Organized Health Care Education/Training Program 21
Family Medicine Physician 10
Cardiovascular Disease Physician 9
Surgery Physician 7
Gastroenterology Physician 5
Pulmonary Disease Physician 4

Lucas Christianson, M.D.
Cardiovascular Disease Physician
NPI 1700158201
See commercial rates for Lucas Christianson, M.D.
Pavani Kuruma, MD
Family Medicine Physician
NPI 1285601310
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Lisa Zahn, M.D.
Emergency Medicine Physician
NPI 1376715375
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Sonika Patel
Cardiovascular Disease Physician
NPI 1538691928
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Elena Cutting, MD
Hospitalist Physician
NPI 1194352989
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Zainab Mezban, MD
Internal Medicine Physician
NPI 1275621872
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Meng Qiao Xi
Emergency Medicine Physician
NPI 1780117341
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Alexander Meyer, MD
Interventional Cardiology Physician
NPI 1639533359
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Peter Ackerman, MD
Emergency Medicine Physician
NPI 1427435023
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Jehnan Liu, M.D. PH.D.
Emergency Medicine Physician
NPI 1255694238
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Ali Saadi, M.D.
Hospitalist Physician
NPI 1851787428
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Timothy Rupp, MD
Emergency Medicine Physician
NPI 1497766166
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Wendy Palacios, WENDY PALACIOS
Emergency Medicine Physician
NPI 1669777538
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Eric Aaserude
Emergency Medicine Physician
NPI 1811491194
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Eddy Pho, MD
Diagnostic Radiology Physician
NPI 1821176991
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Christopher Vandivort, M.D.
Emergency Medicine Physician
NPI 1063876126
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Ahdy Messiha, M.D.
Diagnostic Radiology Physician
NPI 1023218229
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Duong Le, M.D.
Cardiovascular Disease Physician
NPI 1497191738
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Colin Ireland, D.O.
Emergency Medical Services (Emergency Medicine) Physician
NPI 1730560343
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Adam Elkin, MD
Internal Medicine Physician
NPI 1225218373
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Jody Burkes, MD
Anatomic Pathology Physician
NPI 1093887838
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Caroline Sherbourne, MD
Diagnostic Radiology Physician
NPI 1124106620
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Patricia Anne Atal
Internal Medicine Physician
NPI 1598384737
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Gulnar Odera, MD
Internal Medicine Physician
NPI 1578721015
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Source: CMS Doctors and Clinicians facility affiliations, released 2026-10-15, with names and specialties from NPPES. Affiliation means the clinician bills Medicare for care at this hospital; it is not employment.

Income statement

Revenue, expenses and income Walnut Creek Medical Center reported to Medicare for Jan 1, 2025 to Dec 31, 2025. Percentages are of net patient revenue.

Line	Amount	Share
Gross patient revenue (charges)	$3B	378.0%
Inpatient	$1.3B	160.6%
Outpatient	$1.7B	217.4%
Contractual allowances and discounts	-$2.2B	-278.0%
Net patient revenue	$794.6M	100.0%
Operating expenses	-$826.3M	-104.0%
Operating income from patient care	-$31.7M	-4.0%
Other income	$7.1M	0.9%
Contributions and donations	$12,722	0.0%
Other	$7.1M	0.9%
Net income	-$24.6M	-3.1%

Gross revenue by payer

Line	Amount	Share
Traditional Medicare	$35.4M	1.2%
Medicaid (including managed care)	$161.8M	5.4%
Other payers and self-pay	$2.8B	93.4%
Total charges	$3B	100.0%

Source: CMS cost report (HCRIS, Form 2552-10), report 836072, as submitted. Hospitals report these figures themselves; they are not audited financial statements. Traditional Medicare is the program charges on Worksheets D-3 and D Part V; Medicaid is from Worksheet S-10.

Financial ratios

Computed from Walnut Creek Medical Center's latest cost report.

-4.0%
Operating margin
Operating income from patient care / net patient revenue
-3.1%
Total margin
Net income / net patient revenue plus other income
-0.1%
EBITDAR margin
Net income before interest, depreciation and leases (Worksheet A-7), / total revenue
57% of expenses
Personnel costs
Salaries, direct-care contract labor and core wage-related costs / operating expenses
$90.04
Average hourly wage
Adjusted salaries / paid hours (Worksheet S-3 Part II)

Source: CMS cost report (HCRIS, Form 2552-10), report 836072, as submitted. Hospitals report these figures themselves; they are not audited financial statements.

Charity care and uncompensated care

Care Walnut Creek Medical Center provided without full payment, as reported on Worksheet S-10 of its cost report.

$7.8M
Cost of charity care
Care for patients approved for charity care and uninsured discounts, at cost
$530,120
Bad debt
Patient bills written off as uncollectible, at charges
$17.3M
Medicaid shortfall
Cost of Medicaid patients (charges times the cost-to-charge ratio) minus Medicaid payments; negative means a surplus
$25.2M
Total unreimbursed and uncompensated care
3.0% of operating expenses
Medicaid, CHIP and indigent care shortfalls plus charity care and the cost of bad debt (Worksheet S-10 line 31)

Source: CMS cost report (HCRIS, Form 2552-10), report 836072, as submitted. Hospitals report these figures themselves; they are not audited financial statements.

Financial trend

Walnut Creek Medical Center's full-year cost reports, by fiscal year end. Reports shorter than ten months are left out.

Show 6 years

Fiscal year ending	Dec 2020	Dec 2021	Dec 2022	Dec 2023	Dec 2024	Dec 2025
Net patient revenue		$555.4M	$681M	$674.5M	$784.7M	$794.6M
Operating expenses	-$267	$714.6M	$704.4M	$751.2M	$813.1M	$826.3M
Operating margin		-28.7%	-3.4%	-11.4%	-3.6%	-4.0%
Net income	$268	-$151.7M	-$12.8M	-$67.1M	-$10.1M	-$24.6M
Discharges	11,400	11,818	12,000	12,279	13,093	13,400
Inpatient days	51,160	55,530	54,556	56,541	60,170	59,612
Medicare Advantage days	21,558	23,776	24,426	25,607	28,224	28,071
Beds	233	249	219	249	249	249
Employees (FTE)	1,328	1,260	1,495	1,357	1,379	1,387

Source: CMS cost report (HCRIS, Form 2552-10), report 836072, as submitted. Hospitals report these figures themselves; they are not audited financial statements.

Departments

Each cost center Walnut Creek Medical Center reports, largest first. Total cost includes its share of overhead; the cost-to-charge ratio is total cost / charges.

Show all 35 departments

Ancillary and outpatient departments

Department	Salaries	Total cost	Charges	Cost-to-charge	Square feet
Emergency		$66.8M	$356.7M	0.19	33,493
Operating room	$13.5M	$57.6M	$615.4M	0.09	46,193
Radiology-diagnostic		$45.4M	$522.8M	0.09	40,184
Laboratory		$43.9M	$246.4M	0.18	11,736
Observation beds (non-distinct part		$41.9M	$127.1M	0.33
Delivery room & labor room	$18.9M	$41.1M	$54.4M	0.76	15,993
Home health agency	$20.8M	$41M	$17.1M	2.40	8,343
Drugs charged to patients		$36.5M	$108.9M	0.34
Recovery room	$15.5M	$32.8M	$53.1M	0.62	17,171
Medical supplies charged to patient		$20.9M	$50.8M	0.41
Impl. dev. charged to patients		$18.4M	$25.4M	0.72
Respiratory therapy	$6.1M	$11.8M	$54.7M	0.21	1,766
Renal dialysis		$10.9M	$87.2M	0.13	690
Cardiac catheterization		$9.1M	$46.1M	0.20	5,655
Physical therapy		$6.7M	$10.2M	0.66	9,001
Electrocardiology		$2.8M	$48.3M	0.06

Inpatient units

Department	Salaries	Total cost	Charges	Cost-to-charge	Square feet
Adults & pediatrics	$86.7M	$197.1M	$375.4M	0.53	91,640
Intensive care unit	$15.5M	$35.5M	$95.4M	0.37	12,739
Neonatal intensive care unit	$13.9M	$29.5M	$48.8M	0.60	6,811
Nursery	$134,597	$6.6M	$42.9M	0.15	6,332

Overhead (general service) departments

Department	Salaries	Direct cost	Paid hours	Average hourly wage	Square feet
Employee benefits department	$1.2M	$122.3M			675
Administrative & general	$25M	$105.8M	252,850	$111.55	20,155
Operation of plant	$5.7M	$22.8M	81,941	$55.38	16,759
Nursing administration	$16.6M	$17.6M	143,261	$115.73	2,187
Cap rel costs-bldg & fixt		$13.4M			481,080
Central services & supply	$3.7M	$13M	180,798	$46.18	16,357
Cap rel costs-mvble equip		$11.2M
Housekeeping	$12.5M	$10.2M	308,192	$35.43	7,478
Pharmacy	$9.4M	$9.3M	97,208	$96.49	13,313
Dietary	$3.3M	$5.7M	64,828	$50.20	6,741
Maintenance & repairs		$3.9M	29,990	$80.88
Social service	$3M	$2.5M	42,226	$70.43	653
Laundry & linen service		$2.2M			1,219
Medical records & library		$787,149	15,547	$48.54	1,456
I&r services-other prgm costs apprv	$215,755	$208,682

Source: CMS cost report (HCRIS, Form 2552-10), report 836072, as submitted. Hospitals report these figures themselves; they are not audited financial statements. Worksheets A, B-1, C Part I and S-3 Part II.

Medicare payment profile

The factors Medicare uses to set what it pays Walnut Creek Medical Center for an inpatient stay.

1.76
Case mix index
Higher than 58% of hospitals paid under Medicare IPPS
Average Medicare DRG weight of its inpatient cases (FY 2027); higher means more complex, costlier care.
Teaching hospital
Teaching status
0.02 residents per bed
Medicare-funded interns and residents per bed (FY 2027).
4.7%
Low-income patient share
Disproportionate share percentage: Medicaid and SSI patient days CMS uses for safety-net payments (FY 2027).
362
Medicare inpatient stays
Medicare claims CMS based FY 2027 payment rates on.
Urban (metro area)
Location type
Geographic area CMS assigns before any wage index reclassification (FY 2027).

Show FY 2021 to FY 2027

IPPS fiscal year	FY 2021	FY 2022	FY 2023	FY 2024	FY 2025	FY 2026	FY 2027
Case mix index	1.72	1.72	1.62	1.80	2.13	1.85	1.76
Wage index	1.733	1.759	1.806	1.823	1.736	1.650	1.713
Readmissions adjustment	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
Value-based purchasing adjustment	+0.72%	+0.27%	+0.27%	-0.80%	-0.51%	+1.07%	+0.56%
Medicare inpatient stays	262	262	286	263	239	284	362

Source: CMS IPPS final rule Impact File (FY 2027).

Frequently asked questions

About Walnut Creek Medical Center's rates and hospital price transparency.

What is Walnut Creek Medical Center's CMS star rating?

Walnut Creek Medical Center has a CMS overall hospital star rating of 3 out of 5 on Medicare Care Compare (CMS data released 2026-08-13). That is lower than 42% of US hospitals.

Is Walnut Creek Medical Center a teaching hospital?

Yes. CMS counts 0.02 Medicare-funded residents per bed at Walnut Creek Medical Center for fiscal year 2027, so it is a teaching hospital.

Does Medicare penalize Walnut Creek Medical Center for readmissions?

No. Walnut Creek Medical Center has no Hospital Readmissions Reduction Program penalty in fiscal year 2027.

What are the most common Medicare inpatient stays at Walnut Creek Medical Center?

In 2024, the most common were septicemia or severe sepsis without mv >96 hours with mcc (74 discharges), septicemia or severe sepsis without mv >96 hours without mcc (16 discharges), heart failure and shock with mcc (15 discharges).

What is Walnut Creek Medical Center's case mix index?

Walnut Creek Medical Center's Medicare case mix index is 1.76 for fiscal year 2027, higher than 58% of hospitals paid under the inpatient prospective payment system.

How many patients does Walnut Creek Medical Center admit?

Walnut Creek Medical Center reported 13,400 inpatient discharges and 59,612 inpatient days from Jan 1, 2025 to Dec 31, 2025.

How many employees does Walnut Creek Medical Center have?

Walnut Creek Medical Center reported 1,387 full-time-equivalent employees on payroll from Jan 1, 2025 to Dec 31, 2025.

How much revenue does Walnut Creek Medical Center make?

Walnut Creek Medical Center reported $794.6M in net patient revenue on $3B of gross charges for Jan 1, 2025 to Dec 31, 2025, an operating margin of -4.0%, and net income of -$24.6M.

How much charity and uncompensated care does Walnut Creek Medical Center provide?

Walnut Creek Medical Center reported $25.2M of unreimbursed and uncompensated care for Jan 1, 2025 to Dec 31, 2025, including $7.8M of charity care at cost.

Who is the CEO of Walnut Creek Medical Center?

Walnut Creek Medical Center's Medicare enrollment lists Carrie A Owen Plietz as Regional President, Northern Ca since 2020.

For hospital finance and compliance teams

Running price transparency at a hospital like this one?

The data on this page comes from the files hospitals and payers publish. We help hospitals publish theirs correctly, and take a fresh look at their chargemaster.

Compliance MRF

Publish a CMS-compliant machine-readable file

We turn your chargemaster and payer contracts into the CMS template file, then keep it current as rates change.

CMS v3 example: standard_charge_information[0]

{
  "description": "MRI of brain (no contrast)",
  "code_information": [
    { "code": "611", "type": "RC" },
    { "code": "70551", "type": "CPT" }
  ],
  "standard_charges": [{
    "setting": "outpatient",
    "minimum": 250,
    "maximum": 400,
    "gross_charge": 1200,
    "discounted_cash": 1080,
    "payers_information": [
      {
        "payer_name": "Platform Health Insurance",
        "plan_name": "PPO",
        "methodology": "fee schedule",
        "standard_charge_dollar": 400
      },
      {
        "payer_name": "Region Health Insurance",
        "plan_name": "HMO",
        "methodology": "fee schedule",
        "standard_charge_dollar": 250
      }
    ]
  }]
}

CMS template layout, in JSON or CSV
Gross, discounted cash, payer-specific and de-identified min / max charges
cms-hpt.txt file and homepage footer link
Refreshed when your contracts change

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Chargemaster analysis

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Your chargemaster sets the gross charge on every claim, and many payer contracts base payment on it through percent-of-charge, lesser-of and stop-loss terms. We audit it line by line and show how your charges and negotiated rates compare with peer hospitals before your next negotiation.

What a review covers

CodingPricingPayer contractsCompliance

CPT, HCPCS, revenue code and modifier errors flagged line by line
Missing, duplicate and outdated charge lines identified
Charges set below payer allowables caught before lesser-of clauses cut payment
Revenue impact of charge changes modeled across percent-of-charge and stop-loss terms
Your negotiated rates benchmarked against peer hospitals for the same payers

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Walnut Creek Medical Center

About this hospital

Negotiated Rates

Insurance Accepted

More about this hospital

Location

Quality ratings (CMS Care Compare)

Medicare quality penalties and bonuses

Every CMS quality measure

Accreditation and services

25 services at Walnut Creek Medical Center

Size and patient volume

Utilization by payer and unit

Beds and days by unit

Medicare inpatient stays

Medicare outpatient services

Where patients come from

Staff and facilities

Doctors and clinicians

Income statement

Gross revenue by payer

Financial ratios

Charity care and uncompensated care

Financial trend

Departments

Ancillary and outpatient departments

Inpatient units

Overhead (general service) departments

Medicare payment profile

Ownership

Leadership

Officers and directors on the Medicare enrollment

Hospital-based units

Hospital-based units with their own Medicare certification

Frequently asked questions

Running price transparency at a hospital like this one?

Publish a CMS-compliant machine-readable file

Get your chargemaster right for billing and payer contracts

About this hospital

Negotiated Rates

Insurance Accepted

More about this hospital

Location

Quality ratings (CMS Care Compare)

Medicare quality penalties and bonuses

Every CMS quality measure

Accreditation and services

25 services at Walnut Creek Medical Center

Size and patient volume

Utilization by payer and unit

Beds and days by unit

Medicare inpatient stays

Medicare outpatient services

Where patients come from

Staff and facilities

Doctors and clinicians

Income statement

Gross revenue by payer

Financial ratios

Charity care and uncompensated care

Financial trend

Departments

Ancillary and outpatient departments

Inpatient units

Overhead (general service) departments

Medicare payment profile

Ownership

Leadership

Officers and directors on the Medicare enrollment

Hospital-based units

Hospital-based units with their own Medicare certification

Nearby hospitals

Frequently asked questions

Running price transparency at a hospital like this one?

Publish a CMS-compliant machine-readable file

Get your chargemaster right for billing and payer contracts