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Critical Access HospitalVoluntary Non-Profit - Private

Mackinac Straits Health System

Trinity Health · Saint Ignace, MI

1140 North State Street, Saint Ignace, MI 49781(906) 643-8585

Not rated by CMS

CMS star rating

63

Beds

156

Inpatient discharges a year

$80.7M

Net patient revenue a year

27

In-network payers

About this hospital

Mackinac Straits Health System is a 63-bed voluntary non-profit - private hospital in Saint Ignace, MI, affiliated with Trinity Health. Below you'll find publicly disclosed negotiated rates and facility details, including 27 in-network payers and 178 disclosed rate categories.

  • 340B participant
  • ACO participant
CCN
231306
NPI
1124283502
Health system
Trinity Health
County
Mackinac County
Medicare contractor
Jurisdiction 8, WPS Government Health Administrators (08001)
In Medicare since
2000
Last CMS survey
2012

Prices for common services

The 24 services Mackinac Straits Health System 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

$3,313 - $3,820

from 4 insurers · median $3,593

Aetna$3,442
Insurer A*$3,313
Insurer B*est.$3,744
Insurer C*est.$3,820
Medicare $356Nearby hospitals $2,79229% above nearby hospitals

Typical for a hospital with this service line

CT imaging

CT head or brain without contrast

CPT 70450

$530 - $1,220

from 4 insurers · median $1,127

Aetna$530
Insurer A*$1,058
Insurer B*est.$1,196
Insurer C*est.$1,220
Medicare $107Nearby hospitals $1,092In line with nearby hospitals

Typical for a hospital with this service line

CT imaging

CT angiography of chest blood vessels

CPT 71275

$1,736 - $3,357

from 4 insurers · median $3,100

Aetna$1,736
Insurer A*$2,911
Insurer B*est.$3,290
Insurer C*est.$3,357
Medicare $179Nearby hospitals $2,19541% above nearby hospitals

Typical for a hospital with this service line

CT imaging

CT of the abdomen and pelvis, without contrast

CPT 74176

$2,003 - $2,411

from 4 insurers · median $2,287

Aetna$2,411
Insurer A*$2,003
Insurer B*est.$2,264
Insurer C*est.$2,310
Medicare $244Nearby hospitals $1,92919% above nearby hospitals

Typical for a hospital with this service line

How the insurers pay at Mackinac Straits Health System

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*22
661%
183
Insurer B*24
651%
162
Insurer C*24
638%
172
Insurer D*23
508%
94

How we chose these services: 0 appear in this hospital's own Medicare claims, 0 are common here based on CMS Medicare volume, and 24 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 Mackinac Straits Health System, 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)
AmbetterAspirus Health PlanAvera Health PlansBanner HealthCenteneEMI Health

More about this hospital

Tax IDs and NPIs insurers list

The employer identification numbers (EINs) health plans and networks list for Mackinac Straits Health System in the in-network rate files they publish, with the organization NPIs billed under each.

Tax ID (EIN)Plans and networks listing itOrganization NPIs
20-8756459Mackinac Straits Hospital50Aetna, Cigna, United Healthcare (incl Optum, Rocky Mountain, Health Plan of Nevada, Sierra Health), Allied Benefit Systems, Ambetter and 45 more1124283502 Mackinac Straits Health System Inc1013172493 Mackinac Straits Health System Inc1902061385 Mackinac Straits Health System Incand 10 more

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

1140 North State Street, Saint Ignace, MI 49781

(906) 643-8585

Get directions

Frequently asked questions

About Mackinac Straits Health System's rates and hospital price transparency.

How much does an MRI cost at Mackinac Straits Health System?

For MRI brain before and after contrast (CPT 70553), published negotiated rates at Mackinac Straits Health System range from $3,996 to $4,705 across 4 insurers. Blue Cross Blue Shield's rate is $4,080. The median at nearby comparable hospitals is $3,938. What a patient pays depends on their plan's deductible, coinsurance and network status.

How much does a CT scan cost at Mackinac Straits Health System?

For CT abdomen and pelvis with contrast (CPT 74177), published negotiated rates at Mackinac Straits Health System range from $3,313 to $3,820 across 4 insurers. Aetna's rate is $3,442. The median at nearby comparable hospitals is $2,792. What a patient pays depends on their plan's deductible, coinsurance and network status.

How much does a colonoscopy cost at Mackinac Straits Health System?

For Colonoscopy with polyp removal (CPT 45385), published negotiated rates at Mackinac Straits Health System range from $351 to $8,220 across 4 insurers. Aetna's rate is $8,220. The median at nearby comparable hospitals is $1,956. What a patient pays depends on their plan's deductible, coinsurance and network status.

How much does a mammogram cost at Mackinac Straits Health System?

For Screening mammography, bilateral (CPT 77067), published negotiated rates at Mackinac Straits Health System range from $334 to $386 across 4 insurers. Cigna's rate is $386. The median at nearby comparable hospitals is $325. What a patient pays depends on their plan's deductible, coinsurance and network status.

How many patients does Mackinac Straits Health System admit?

Mackinac Straits Health System reported 156 inpatient discharges and 664 inpatient days from Apr 1, 2025 to Mar 31, 2026.

How many employees does Mackinac Straits Health System have?

Mackinac Straits Health System reported 197 full-time-equivalent employees on payroll from Apr 1, 2025 to Mar 31, 2026.

How much revenue does Mackinac Straits Health System make?

Mackinac Straits Health System reported $80.7M in net patient revenue on $142.2M of gross charges for Apr 1, 2025 to Mar 31, 2026, an operating margin of 6.3%, and net income of $6.5M.

How much charity and uncompensated care does Mackinac Straits Health System provide?

Mackinac Straits Health System reported $3.5M of unreimbursed and uncompensated care for Apr 1, 2025 to Mar 31, 2026, including $544,571 of charity care at cost.

Who is the CEO of Mackinac Straits Health System?

Mackinac Straits Health System's 2024 IRS Form 990 lists Karen Cheeseman as CEO.

What is Mackinac Straits Health System's tax ID (EIN)?

Insurers' price transparency files list Mackinac Straits Health System under employer identification number 20-8756459 (Mackinac Straits Hospital). 50 health plans and networks list 20-8756459 for it.

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

Get your chargemaster right for billing and payer contracts

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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