Price AtlasInteractive atlas · All states · techysurgeon.comProvidence St Mary Medical Center: what a joint replacement costs
Walla Walla, WA 99362 · CMS Certification Number 500002. 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 Providence St Mary Medical Center
| Operation | Inpatient avg total payment Medicare + patient share | List price | List ÷ total | Outpatient Medicare allowed |
|---|---|---|---|---|
| Hip or knee replacement | $14,925 | $68,151 | 4.6× | $14,053 |
| Shoulder replacement | — | — | — | $19,983 |
| Hip replacement after a fracture (DRG 522) | $17,911 | $69,484 | 3.9× | — |
Commercial negotiated rates (beta)
| MS-DRG 470 | Median across insurers | × Medicare total payment | Lowest–highest insurer | Insurers |
|---|---|---|---|---|
| Hip or knee replacement | $31,888 | 2.1× | $27,476–$42,980 | 4 |
| Insurer | Median negotiated, MS-DRG 470 | × Medicare total payment | Plans |
|---|---|---|---|
| Premera Blue Cross | $42,980 | 2.9× | 1 |
| Healthnet | $35,421 | 2.4× | 1 |
| Cigna | $28,355 | 1.9× | 1 |
| UnitedHealthcare | $27,476 | 1.8× | 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: 3.8% (no different from the national rate). Readmissions: 5.9%. Overall Care Compare rating: 3 of 5 stars. Nonprofit · Acute · 146 beds
Washington requires a certificate of need for new surgery centers.
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Questions
How much does Medicare pay Providence St Mary Medical Center for a knee or hip replacement?
In 2024 the average total payment to Providence St Mary Medical Center for an inpatient hip or knee replacement stay was $14,925 (MS-DRG 470, 21 Medicare stays; Medicare's payment plus the patient's deductible and coinsurance), and the Medicare allowed amount averaged $14,053 per outpatient case (APC 5115, 182 cases).
What is Providence St Mary Medical Center's list price for a joint replacement?
The hospital's average list (chargemaster) price for an inpatient hip or knee replacement was $68,151, 4.6× 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 Providence St Mary Medical Center?
Yes for Medicare facility payments. Walla Walla Clinic, an orthopedic surgery center same ZIP away, is paid about $9,211 by Medicare for a knee replacement (CPT 27447), $5,714 less than an inpatient stay at Providence St Mary Medical Center. Not every patient is a surgery-center candidate.
How does Providence St Mary Medical Center compare with other Washington hospitals?
Providence St Mary Medical Center's average total payment per Medicare stay is lower than 96% of the 26 Washington hospitals that report inpatient hip or knee replacement.
What do commercial insurers pay Providence St Mary Medical Center 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 $31,888 across 4 insurers, ranging from $27,476 to $42,980.