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CMS Price Transparency Data Hospital file updated: 2026-03-31

Total knee replacement

Facility: OSF Little Company of Mary Medical Center

Billing Code: 27447 (CPT)

Pillar 1 · The BaseRate™ CompositeHow 1.00× Fair BaseRate Works: Raw price averages unfairly penalize hospitals in high-wage cities or trauma centers treating sicker patients. We adjust for local CMS hospital wage levels and patient complexity first. A 1.00× score means right at the fair price average, 0.85× means 15% cheaper than fair market, and 1.30× means 30% above fair market.Near Fair BaseRate Benchmark
$14,147Fair BaseRate (0.99× Market)
Position vs. 1.00× Fair PriceRight at U.S. Average (0%) 1.00× (center of the bar) is the U.S. fair price average after accounting for local hospital wages and patient complexity. Left of center (<1.00×) is below fair price; right of center (>1.00×) is above fair price.

This hospital's typical commercial price is $13,965 compared to the $14,147 fair price benchmark.

Pillar 2 · VeriRate™ Data TrustHow VeriRate™ (0–100) Works: Hospitals are legally required to publish machine-readable price files, but some bury fake $0.01 numbers or omit cash discounts. VeriRate audits each file across 5 checks (hover any badge below to see what it tests).86/100 · Verified
86/100Hover Any Check Below to See How Prices Were Audited
File Completeness90Provenance (File Completeness): Checks whether the hospital published a complete, up-to-date machine-readable price file with valid CPT and MS-DRG billing codes instead of leaving blanks.
Price Logic88Coherence (Price Logic): Checks whether the hospital’s numbers make basic sense — e.g., self-pay cash price is lower than gross list price, with no fake $0.01 or $999,999 placeholder numbers.
Peer Alignment86Concordance (Peer Alignment): Checks whether reported prices sit in a realistic range compared to Medicare and nearby hospitals rather than wild 100× unit errors.
Clean Billing83Regularity (Clean Billing): Checks whether rates are structured consistently across procedures without erratic statistical spikes or hidden unbundled facility fees.
Real Cash Discount84Cash Honesty (Real Cash Discount): Checks whether the hospital offers a genuine self-pay cash discount that beats or matches commercial insurance rates instead of billing full sticker price.
Pillar 3 · Clinical Quality & ER SpeedChecks whether higher hospital prices actually buy better clinical quality — combining CMS Star Ratings, hospital safety scores, and emergency room wait times.Regional Quality Benchmark
CMS Star Rating2/5 StarsOfficial CMS Overall Hospital Quality Star Rating (1 to 5 stars) summarizing mortality, safety of care, readmissions, and patient experience.
Safety Score42/100Composite patient safety score (0–100) derived from CMS hospital-acquired infection rates (CLABSI, CAUTI, MRSA, C. diff), surgical complications, and HCAHPS surveys.
Typical ER WaitNo ER DataMedian minutes patients spent in the emergency department before leaving from the visit, as reported to CMS Timely and Effective Care.

2-Star CMS clinical quality rating paired with 0.99× fair market pricing.

The BaseRate · fair price high confidence
A fair price for this
$14,147
about 1.1× the $13,117 Medicare rate · typically $7,730–$18,379
modeled estimate · not a bill or quote
What this hospital charges insurers
$13,965
About the fair price
about $182 under the fair price · 1.1× Medicare
Medicare pays $13,117 Fair price $14,147 This hospital $13,965

How we calculate the fair BaseRate →

How this hospital compares to other IL hospitals

Highest price of the 9 IL hospitals we have prices for — worth calling around.

Cheapest $2,130 Priciest $13,965

Black dot = this hospital, among the 9 IL hospitals with a price for this procedure. Full list below.

A fair price for a Total knee replacement is about $14,147 (about 1.1× the $13,117 Medicare rate). OSF Little Company of Mary Medical Center charges insurers about $13,965 — about the fair price. Located in Evergreen Park, IL.

What each insurance company pays

Which insurers have negotiated a price with this hospital for this procedure — and which haven’t.

3 of 6 major insurers have a published price at this hospital

UnitedHealthcareBlue Cross Blue ShieldAetna CignaHumanaKaiser Permanente

Crossed out = this hospital hasn’t published a negotiated price for that insurer for this procedure. It doesn’t necessarily mean they aren’t accepted — ask your insurer.

Insurance company Price range vs. Medicare
UnitedHealthcaremajor $7,831 60%
Blue Cross Blue Shieldmajor $25,590 195%
Aetnamajor $2,733 - $14,033 21%
Molina $19,261 147%
WellCare $13,896 106%
+ 2 smaller / regional plans $13,758 - $16,510

Self-Pay How to get the cash price

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Facility Profile & Credentials

  • Address: 2800 W 95Th St, Evergreen Park, IL 60805
  • CMS Rating: 2 / 5 Stars
  • Ownership Type: Voluntary non-profit - Other
  • Hospital Type: Acute Care Hospitals

Other Procedures at OSF Little Company of Mary Medical Center

Compare: Total knee replacement at other IL hospitals

Insurance negotiated median for the same procedure, sorted lowest first.

Inline Bill X-Ray & 501(r) Calculator 501(c)(3) Nonprofit · Free Care ≤200% FPL · AGB Cap 36.3%

Audit a Bill or Quote at OSF Little Company of Mary Medical Center (Zero PHI Required)

CMS CCN: 140179
CPT 27447
Fair BaseRate™ $14,147
Medicare Rate $13,117
Self-Pay Cash Request Quote
Insurer Median $13,965
Pre-filled with OSF Little Company of Mary Medical Center’s charged/list benchmark
Screened against 2026 HHS Federal Poverty Guidelines
2026 FPL: $15,650 + $5,500 per additional person
Step 1 · 501(r) Charity Care Check 501(r) AGB Cap: $12,166 (274% FPL)

Statutory 501(r) AGB Cap Limits Bill to $12,166

At 274% FPL (201%–400% FPL tier), 26 U.S.C. § 501(r)(5) caps FAP-eligible bills at Amounts Generally Billed (36.3% of gross = $12,166).

Step 2 · Cash vs. Insurance Arbitrage Request Prompt-Pay Quote

Compare Prompt-Pay Cash Rate Against Remaining Deductible

Ask OSF Little Company of Mary Medical Center's billing desk for their written 45 CFR § 180 discounted self-pay cash price and Good Faith Estimate under the No Surprises Act.

Step 3 · Fair BaseRate Target +$19,369 Above Fair BaseRate

Negotiate Toward $14,147 Fair BaseRate ($13,117 Medicare)

Your bill ($33,516) is $19,369 above the denoised Fair BaseRate ($14,147) and 2.6× the $13,117 Medicare rate.

1-Click Factual Dispute Summary: Copy a citation-backed benchmark memo (with CMS CCN, CPT code, Medicare reference, Fair BaseRate, and 26 U.S.C. § 501(r) calculations) to paste into patient-portal messages or billing appeals.
CMS Care Compare Public Quality Record

Clinical Quality, Patient Experience & Infection Benchmarks

CMS Overall2/5 Stars (2/5)

Source: CMS Hospital Care Compare. Clinical quality metrics summarize historical facility-wide cohorts and are not medical advice for individual care decisions.

Care-Setting Arbitrage, Bilateral SVD Insurer Leverage & Regional Alternatives

How to Pay Less Nearby: Freestanding Centers, Insurer Leverage & Outpatient Savings

45 CFR § 180 Primary-Source Lineage & Federal Verification Verified CMS CCN 140179

Verify the Raw Data: Official Hospital MRF, CMS Medicare.gov & Federal Filings

MRF Portal Indexed (370813229_1215572045_osf-healthcare-system_standardcharges.json) Verify on CMS Medicare.gov (CCN 140179) ↗ CMS HCRIS Cost Reports ↗
Published MRF File370813229_1215572045_osf-healthcare-system_standardcharges.json
Publication / Vintage2026-03-31 · 32.22 MB
Validated Rate Rows119,128 (CMS v3.0.0)
File Integrity Digest16352cc79f891ddfa665…

Safe-Harbor Data Corrections: Parsed directly from public 45 CFR § 180 hospital filings, CMS Care Compare, and CMS HCRIS cost reports. Hospital compliance officers may submit updated MRF URLs or rate tables for verification.

Submit MRF Update Correction Policy