Somerville, NJ 08876 · CMS Certification Number 310048. 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 | $15,618 | $82,858 | 5.3× | $13,250 |
| Shoulder replacement | — | — | — | $18,688 |
| Hip replacement after a fracture (DRG 522) | $18,965 | $113,076 | 6.0× | — |
Complications after hip or knee replacement: 4% (no different from the national rate). Readmissions: 6.2%. Overall Care Compare rating: 3 of 5 stars. Nonprofit · Acute · 335 beds
New Jersey has a certificate-of-need program that does not cover surgery centers.
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In 2024 Medicare paid Robert Wood Johnson University Hospital Somerset an average of $15,618 per inpatient hip or knee replacement stay (MS-DRG 470, 25 stays) and $13,250 per outpatient case (APC 5115, 168 cases).
The hospital's average list (chargemaster) price for an inpatient hip or knee replacement was $82,858, 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. Somerset Ambulatory Surgical Center, an orthopedic surgery center same ZIP away, is paid about $9,582 by Medicare for a knee replacement (CPT 27447), $6,036 less than an inpatient stay at Robert Wood Johnson University Hospital Somerset. Not every patient is a surgery-center candidate.
Medicare paid Robert Wood Johnson University Hospital Somerset less than 77% of the 26 New Jersey hospitals that report inpatient hip or knee replacement.