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Saint Alphonsus Medical Center - Nampa: what a joint replacement costs

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.

Surgery center nearby
$8,634
Millennium Surgery Center, 6.9 mi
Outpatient here
$12,720
Medicare allowed amount, 71 cases, APC 5115
Inpatient here
$15,269
Avg total payment (incl. patient share), 20 Medicare stays, MS-DRG 470

Medicare prices at Saint Alphonsus Medical Center - Nampa

OperationInpatient avg total payment
Medicare + patient share
List priceList ÷ totalOutpatient Medicare allowed
Hip or knee replacement$15,269$62,0034.1×$12,720
Shoulder replacement———$17,998

Commercial negotiated rates (beta)

MS-DRG 470Median across insurers× Medicare total paymentLowest–highest insurerInsurers
Hip or knee replacement$42,1252.8×$27,613–$67,54024
InsurerMedian negotiated, MS-DRG 470× Medicare total paymentPlans
Cigna$67,5404.4×1
BCBS AZ$42,1252.8×1
BCBS MN$42,1252.8×1
BCBS Michigan$42,1252.8×1
BCBS NC$42,1252.8×1
BCBS TN$42,1252.8×1
Bcn Domestic$42,1252.8×1
Blue Cross of Idaho$42,1252.8×1
CareFirst BCBS$42,1252.8×1
Elevance/Anthem/Empire$42,1252.8×1
Excellus BCBS$42,1252.8×1
Highmark BCBS$42,1252.8×1
Horizon BCBS NJ$42,1252.8×1
Independence Blue Cross$42,1252.8×1
Kaiser Permanente$42,1252.8×1
Pre-Employment$42,1252.8×1
Premera Blue Cross$42,1252.8×1
Wellmark BCBS$42,1252.8×1
Regence BlueShield$39,7892.6×1
Webtpa$33,5852.2×1
Selecthealth$33,5072.2×1
Mountain Health -Op$31,3592.1×1
Prime Healthcare$30,3192.0×1
Moda Health$27,6131.8×1

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.

Quality

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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Questions

How much does Medicare pay Saint Alphonsus Medical Center - Nampa for a knee or hip replacement?

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).

What is Saint Alphonsus Medical Center - Nampa's list price for a joint replacement?

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.

Is a knee replacement cheaper at a surgery center near Saint Alphonsus Medical Center - Nampa?

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.

How does Saint Alphonsus Medical Center - Nampa compare with other Idaho hospitals?

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.

What do commercial insurers pay Saint Alphonsus Medical Center - Nampa 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 $42,125 across 24 insurers, ranging from $27,613 to $67,540.