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.
| Operation | Inpatient paid | List price | List ÷ paid | Outpatient 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× | — |
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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In 2024 Medicare paid Northwestern Medicine McHenry Hospital an average of $16,596 per inpatient hip or knee replacement stay (MS-DRG 470, 36 stays) and $12,392 per outpatient case (APC 5115, 383 cases).
The hospital's average list (chargemaster) price for an inpatient hip or knee replacement was $88,270, 5.3× what Medicare paid. Almost nobody pays the list price; it matters for uninsured bills and percent-of-charge contracts.
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.
Medicare paid Northwestern Medicine McHenry Hospital more than 73% of the 45 Illinois hospitals that report inpatient hip or knee replacement.