Nampa, ID 83687 · CMS Certification Number 130013. 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 | $15,269 | $62,003 | 4.1× | $12,720 |
| Shoulder replacement | — | — | — | $17,998 |
| MS-DRG 470 | Median across insurers | × Medicare total payment | Lowest–highest insurer | Insurers |
|---|---|---|---|---|
| Hip or knee replacement | $42,125 | 2.8× | $27,613–$67,540 | 24 |
| Insurer | Median negotiated, MS-DRG 470 | × Medicare total payment | Plans |
|---|---|---|---|
| Cigna | $67,540 | 4.4× | 1 |
| BCBS AZ | $42,125 | 2.8× | 1 |
| BCBS MN | $42,125 | 2.8× | 1 |
| BCBS Michigan | $42,125 | 2.8× | 1 |
| BCBS NC | $42,125 | 2.8× | 1 |
| BCBS TN | $42,125 | 2.8× | 1 |
| Bcn Domestic | $42,125 | 2.8× | 1 |
| Blue Cross of Idaho | $42,125 | 2.8× | 1 |
| CareFirst BCBS | $42,125 | 2.8× | 1 |
| Elevance/Anthem/Empire | $42,125 | 2.8× | 1 |
| Excellus BCBS | $42,125 | 2.8× | 1 |
| Highmark BCBS | $42,125 | 2.8× | 1 |
| Horizon BCBS NJ | $42,125 | 2.8× | 1 |
| Independence Blue Cross | $42,125 | 2.8× | 1 |
| Kaiser Permanente | $42,125 | 2.8× | 1 |
| Pre-Employment | $42,125 | 2.8× | 1 |
| Premera Blue Cross | $42,125 | 2.8× | 1 |
| Wellmark BCBS | $42,125 | 2.8× | 1 |
| Regence BlueShield | $39,789 | 2.6× | 1 |
| Webtpa | $33,585 | 2.2× | 1 |
| Selecthealth | $33,507 | 2.2× | 1 |
| Mountain Health -Op | $31,359 | 2.1× | 1 |
| Prime Healthcare | $30,319 | 2.0× | 1 |
| Moda Health | $27,613 | 1.8× | 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: 4.5% (no different from the national rate). Readmissions: 5.8%. Overall Care Compare rating: 3 of 5 stars. Nonprofit · Acute · 152 beds
Idaho has no certificate-of-need law.
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In 2024 the average total payment to Saint Alphonsus Medical Center - Nampa for an inpatient hip or knee replacement stay was $15,269 (MS-DRG 470, 20 Medicare stays; Medicare's payment plus the patient's deductible and coinsurance), and the Medicare allowed amount averaged $12,720 per outpatient case (APC 5115, 71 cases).
The hospital's average list (chargemaster) price for an inpatient hip or knee replacement was $62,003, 4.1× 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. Millennium Surgery Center, an orthopedic surgery center 6.9 mi away, is paid about $8,634 by Medicare for a knee replacement (CPT 27447), $6,635 less than an inpatient stay at Saint Alphonsus Medical Center - Nampa. Not every patient is a surgery-center candidate.
Saint Alphonsus Medical Center - Nampa's average total payment per Medicare stay is higher than 57% of the 7 Idaho 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 $42,125 across 24 insurers, ranging from $27,613 to $67,540.