Price AtlasInteractive atlas · All states · techysurgeon.comNorthwestern Medicine McHenry Hospital: what a joint replacement costs
McHenry, IL 60050 · CMS Certification Number 140116. What Medicare pays this hospital for knee, hip and shoulder replacement, what it lists, how it compares, and what a surgery center nearby is paid.
Medicare prices at Northwestern Medicine McHenry Hospital
| Operation | Inpatient avg total payment Medicare + patient share | List price | List ÷ total | Outpatient Medicare allowed |
|---|---|---|---|---|
| Hip or knee replacement | $16,596 | $88,270 | 5.3× | $12,392 |
| Shoulder replacement | — | — | — | $15,651 |
| Hip replacement after a fracture (DRG 522) | $17,676 | $98,157 | 5.6× | — |
Commercial negotiated rates (beta)
| MS-DRG 470 | Median across insurers | × Medicare total payment | Lowest–highest insurer | Insurers |
|---|---|---|---|---|
| Hip or knee replacement | $15,429 | 0.9× | — | 1 |
| Insurer | Median negotiated, MS-DRG 470 | × Medicare total payment | Plans |
|---|---|---|---|
| MultiPlan/PHCS (rental network) | $20,981 | 1.3× | 1 |
| BCBS IL | $15,429 | 0.9× | 1 |
From the hospital's price-transparency file (2026-04-01); commercial plans, dollar-amount contracts only.
From the hospital's price-transparency file (2026-04-01); commercial plans, dollar-amount contracts only.
Quality
Complications after hip or knee replacement: 4.6% (no different from the national rate). Readmissions: 6.5%. Overall Care Compare rating: 5 of 5 stars. Nonprofit · Acute · 177 beds
Illinois requires a certificate of need for new surgery centers.
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Questions
How much does Medicare pay Northwestern Medicine McHenry Hospital for a knee or hip replacement?
In 2024 the average total payment to Northwestern Medicine McHenry Hospital for an inpatient hip or knee replacement stay was $16,596 (MS-DRG 470, 36 Medicare stays; Medicare's payment plus the patient's deductible and coinsurance), and the Medicare allowed amount averaged $12,392 per outpatient case (APC 5115, 383 cases).
What is Northwestern Medicine McHenry Hospital's list price for a joint replacement?
The hospital's average list (chargemaster) price for an inpatient hip or knee replacement was $88,270, 5.3× the average total payment for a Medicare stay. Almost nobody pays the list price; it matters for uninsured bills and percent-of-charge contracts.
Is a knee replacement cheaper at a surgery center near Northwestern Medicine McHenry Hospital?
Yes for Medicare facility payments. Algonquin Road Surgery Center LLC, an orthopedic surgery center 8.9 mi away, is paid about $9,238 by Medicare for a knee replacement (CPT 27447), $7,358 less than an inpatient stay at Northwestern Medicine McHenry Hospital. Not every patient is a surgery-center candidate.
How does Northwestern Medicine McHenry Hospital compare with other Illinois hospitals?
Northwestern Medicine McHenry Hospital's average total payment per Medicare stay is higher than 73% of the 45 Illinois hospitals that report inpatient hip or knee replacement.
What do commercial insurers pay Northwestern Medicine McHenry Hospital for a hip or knee replacement?
From the hospital's own price-transparency file, commercial plans' negotiated rates for MS-DRG 470 have a median of $15,429 across 1 insurer.