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Short Term Acute Care HospitalVoluntary Non-Profit - Other

Northwestern Lake Forest Hospital

Northwestern Medicine · Lake Forest, IL

1000 North Westmoreland Road, Lake Forest, IL 60045(847) 234-5600

5 of 5

CMS star rating

140

Beds

13,421

Inpatient discharges a year

$600M

Net patient revenue a year

33

In-network payers

Photo 1: Hullingera, CC BY-SA 4.0, via Wikimedia Commons · Photo 2: Public domain (USGS NAIP, CONUS), via USGS National Map / USDA NAIP

About this hospital

Northwestern Lake Forest Hospital is a 140-bed voluntary non-profit - other hospital in Lake Forest, IL, affiliated with Northwestern Medicine. Below you'll find publicly disclosed negotiated rates and facility details, including 33 in-network payers and 333 disclosed rate categories.

  • Disproportionate share hospital
  • Helipad
CCN
140130
NPI
1124025176
Website
nm.org
Health system
Northwestern Medicine
Teaching
Teaching hospital
County
Lake County
Metro area
Chicago-Naperville-Elgin, IL-IN MSA
Medicare contractor
Jurisdiction 6, National Government Services (06101)
In Medicare since
1966
Last CMS survey
1996

Prices for common services

The 24 services Northwestern Lake Forest Hospital most likely performs, ranked by likely volume and what it is paid. Each service names one insurer. * marks hidden insurer names; A, B and C rank the remaining rates from low to high and reset for each service.

Book a demo to see hidden insurer names, more payer rates, and hospital data, or start a free trial.

CT imaging

CT abdomen and pelvis with contrast

CPT 74177

$1,071 - $2,844

from 2 insurers · median $1,958

BCBS Illinois$2,844
Insurer A*$1,071
Medicare $348Nearby hospitals $1,24857% above nearby hospitals

Common here, based on CMS Medicare volume

Gynecology

Hysteroscopy with sampling of the uterine lining

CPT 58558

$3,270 - $5,367

from 3 insurers · median $3,865

BCBS Illinois$5,367
Insurer A*$3,270
Insurer B*$3,865
Medicare $3,232Nearby hospitals $3,49311% above nearby hospitals

87 Medicare claims in Level 4 Gynecologic Procedures (CMS 2024)

Childbirth · Inpatient

Vaginal delivery, hospital stay

MS-DRG 807

$7,539 - $8,719

from 4 insurers · median $8,315

Cigna$7,539
Insurer A*$8,201
Insurer B*$8,430
Insurer C*$8,719

CMS lists this service as CPT 59400, the obstetrician's global fee. The hospital bills the delivery stay as MS-DRG 807, so these are facility case rates.

Hospital reports obstetrics / child birth services to CMS

Childbirth · Inpatient

Cesarean delivery, hospital stay

MS-DRG 788

$10,559 - $12,345

from 4 insurers · median $11,697

Cigna$11,448
Insurer A*$10,559
Insurer B*$11,947
Insurer C*$12,345

CMS lists this service as CPT 59510, the obstetrician's global fee. The hospital bills the delivery stay as MS-DRG 788, so these are facility case rates.

Hospital reports obstetrics / child birth services to CMS

How the insurers pay at Northwestern Lake Forest Hospital

Median rate as a percent of Medicare across the outpatient services above, and how many services sit above or below the same insurer's median at nearby hospitals. * marks hidden insurer names. These table labels track the same insurers across services; the labels on each service card reset.

InsurerServicesMedian % of MedicareAbove nearbyBelow nearby
Insurer A*24
596%
220
Insurer B*24
322%
165
Insurer C*12
203%
91
Insurer D*6
181%
30

How we chose these services: 6 appear in this hospital's own Medicare claims, 16 are common here based on CMS Medicare volume, and 2 are typical for the service lines it reports to CMS. Rates come from insurer and hospital price transparency files as of October 2026. Rates under a quarter of Medicare or over 20 times Medicare are left out as likely physician-fee rows or file errors. Book a demo to see all 300 CMS shoppable services for Northwestern Lake Forest Hospital, or start a free trial.

Insurance Accepted

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

Medicare
Aetna
BCBS
Cigna
United Healthcare (incl Optum, Rocky Mountain, Health Plan of Nevada, Sierra Health)
Ameri HealthAspirus Health PlanAvera Health PlansBanner HealthCenteneEMI Health

More about this hospital

  • Quality

    5 of 5 stars

    • 221 min in the ER before going home (US median 148)
    • Medicare readmissions penalty (-0.24%)
    See quality ratings
  • Doctors and services

    Accredited by The Joint Commission

    • Teaching hospital
    • 23 services
    • 1,964 affiliated clinicians
    See doctors and services
  • Finances

    $600M net patient revenue

    • Operating margin on patient care -4.6%
    • $23.7M unreimbursed and uncompensated care
    • $26.3M net income
    See finances
  • Ownership and leadership

    Owned by Northwestern Memorial Healthcare

    • Other
    • Seamus P Collins, chief executive
    See ownership and leadership

Tax IDs and NPIs insurers list

The employer identification numbers (EINs) health plans and networks list for Northwestern Lake Forest Hospital in the in-network rate files they publish, with the organization NPIs billed under each.

Tax ID (EIN)Plans and networks listing itOrganization NPIs
36-2179779Northwestern Lake Forest Hospital64Aetna, Cigna, United Healthcare (incl Optum, Rocky Mountain, Health Plan of Nevada, Sierra Health), Allied Benefit Systems, Ambetter and 59 more1124025176 Northwestern Lake Forest Hospital1407914153 Advanced Health Services Inc.1962726067 Northwesstern Lake Forest Hospita

Source: PayerPrice analysis of insurers' Transparency in Coverage in-network files. An EIN can cover several hospitals and clinics in a health system, and insurers sometimes list other organizations' NPIs under it.

Location

1000 North Westmoreland Road, Lake Forest, IL 60045

(847) 234-5600

Get directions

Frequently asked questions

About Northwestern Lake Forest Hospital's rates and hospital price transparency.

How much does an MRI cost at Northwestern Lake Forest Hospital?

For MRI brain before and after contrast (CPT 70553), published negotiated rates at Northwestern Lake Forest Hospital range from $804 to $4,814 across 2 insurers. Aetna's rate is $804. The median at nearby comparable hospitals is $1,742. What a patient pays depends on their plan's deductible, coinsurance and network status.

How much does a CT scan cost at Northwestern Lake Forest Hospital?

For CT abdomen and pelvis with contrast (CPT 74177), published negotiated rates at Northwestern Lake Forest Hospital range from $1,071 to $2,844 across 2 insurers. Blue Cross Blue Shield of Illinois's rate is $2,844. The median at nearby comparable hospitals is $1,248. What a patient pays depends on their plan's deductible, coinsurance and network status.

How much does a colonoscopy cost at Northwestern Lake Forest Hospital?

For Colonoscopy with biopsy (CPT 45380), published negotiated rates at Northwestern Lake Forest Hospital range from $2,961 to $5,458 across 3 insurers. UnitedHealthcare's rate is $2,961. The median at nearby comparable hospitals is $2,465. What a patient pays depends on their plan's deductible, coinsurance and network status.

How much does giving birth cost at Northwestern Lake Forest Hospital?

For Vaginal delivery, hospital stay (MS-DRG 807), published negotiated rates at Northwestern Lake Forest Hospital range from $7,539 to $8,719 across 4 insurers. Cigna's rate is $7,539. What a patient pays depends on their plan's deductible, coinsurance and network status.

How much does a mammogram cost at Northwestern Lake Forest Hospital?

For Screening mammography, bilateral (CPT 77067), published negotiated rates at Northwestern Lake Forest Hospital range from $288 to $930 across 3 insurers. Cigna's rate is $307. The median at nearby comparable hospitals is $263. What a patient pays depends on their plan's deductible, coinsurance and network status.

How much does hip or knee replacement cost at Northwestern Lake Forest Hospital?

For Major lower-extremity joint replacement without MCC (MS-DRG 470), published negotiated rates at Northwestern Lake Forest Hospital range from $20,728 to $33,056 across 4 insurers. Aetna's rate is $24,835. The median at nearby comparable hospitals is $23,766. What a patient pays depends on their plan's deductible, coinsurance and network status.

What is Northwestern Lake Forest Hospital's CMS star rating?

Northwestern Lake Forest Hospital has a CMS overall hospital star rating of 5 out of 5 on Medicare Care Compare (CMS data released 2026-08-13). That is the top rating, shared by 12% of US hospitals.

Is Northwestern Lake Forest Hospital a teaching hospital?

Yes. CMS counts 0.20 Medicare-funded residents per bed at Northwestern Lake Forest Hospital for fiscal year 2027, so it is a teaching hospital.

Does Medicare penalize Northwestern Lake Forest Hospital for readmissions?

Yes. Under the Hospital Readmissions Reduction Program, Medicare cuts Northwestern Lake Forest Hospital's base inpatient payments by an estimated 0.24% in fiscal year 2027 for more readmissions than expected.

What are the most common Medicare inpatient stays at Northwestern Lake Forest Hospital?

In 2024, the most common were septicemia or severe sepsis without mv >96 hours with mcc (335 discharges), heart failure and shock with mcc (140 discharges), respiratory infections and inflammations with mcc (124 discharges).

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.

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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
      }
    ]
  }]
}
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  • cms-hpt.txt file and homepage footer link
  • Refreshed when your contracts change
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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.

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  • Missing, duplicate and outdated charge lines identified
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