Ann Arbor, MI 48106 · CMS Certification Number 230156. 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 avg total payment Medicare + patient share | List price | List ÷ total | Outpatient Medicare allowed |
|---|---|---|---|---|
| Hip or knee replacement | $16,262 | $56,681 | 3.5× | $11,866 |
| Shoulder replacement | $22,158 | $63,899 | 2.9× | $17,202 |
| Hip replacement after a fracture (DRG 522) | $17,982 | $78,566 | 4.4× | — |
| MS-DRG 470 | Median across insurers | × Medicare total payment | Lowest–highest insurer | Insurers |
|---|---|---|---|---|
| Hip or knee replacement | $43,012 | 2.6× | $37,932–$43,012 | 17 |
| Insurer | Median negotiated, MS-DRG 470 | × Medicare total payment | Plans |
|---|---|---|---|
| BCBS (other) | $43,012 | 2.6× | 1 |
| BCBS AZ | $43,012 | 2.6× | 1 |
| BCBS MN | $43,012 | 2.6× | 1 |
| BCBS Michigan | $43,012 | 2.6× | 1 |
| BCBS NC | $43,012 | 2.6× | 1 |
| BCBS TN | $43,012 | 2.6× | 1 |
| CareFirst BCBS | $43,012 | 2.6× | 1 |
| Elevance/Anthem/Empire | $43,012 | 2.6× | 1 |
| Excellus BCBS | $43,012 | 2.6× | 1 |
| Highmark BCBS | $43,012 | 2.6× | 1 |
| Horizon BCBS NJ | $43,012 | 2.6× | 1 |
| Independence Blue Cross | $43,012 | 2.6× | 1 |
| Kaiser Permanente | $43,012 | 2.6× | 1 |
| Premera Blue Cross | $43,012 | 2.6× | 1 |
| Regence BlueShield | $43,012 | 2.6× | 1 |
| Wellmark BCBS | $43,012 | 2.6× | 1 |
| Aetna | $37,932 | 2.3× | 1 |
From the hospital's price-transparency file (2026-03-31); commercial plans, dollar-amount contracts only.
From the hospital's price-transparency file (2026-03-31); commercial plans, dollar-amount contracts only.
Complications after hip or knee replacement: 3.3% (no different from the national rate). Readmissions: 5.4%. Overall Care Compare rating: 4 of 5 stars. Nonprofit · Acute · 505 beds
Michigan requires a certificate of need for new surgery centers.
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In 2024 the average total payment to Trinity Health Ann Arbor Hospital for an inpatient hip or knee replacement stay was $16,262 (MS-DRG 470, 249 Medicare stays; Medicare's payment plus the patient's deductible and coinsurance), and the Medicare allowed amount averaged $11,866 per outpatient case (APC 5115, 170 cases).
The hospital's average list (chargemaster) price for an inpatient hip or knee replacement was $56,681, 3.5× the average total payment for a Medicare stay. Almost nobody pays the list price; it matters for uninsured bills and percent-of-charge contracts.
Yes for Medicare facility payments. Bone & Joint Surgery Center of Novi, an orthopedic surgery center 16.3 mi away, is paid about $8,600 by Medicare for a knee replacement (CPT 27447), $7,662 less than an inpatient stay at Trinity Health Ann Arbor Hospital. Not every patient is a surgery-center candidate.
Trinity Health Ann Arbor Hospital's average total payment per Medicare stay is higher than 62% of the 37 Michigan hospitals that report inpatient hip or knee replacement.
From the hospital's own price-transparency file, commercial plans' negotiated rates for MS-DRG 470 have a median of $43,012 across 17 insurers, ranging from $37,932 to $43,012.