Knee replacement cost in Idaho

Prices at 18 hospitals in Idaho, from their machine-readable files. Here the median cash price is $143,412 — 292% above the US median ($36,604), roughly 7.9× the Medicare rate.

Lowest cash prices

HospitalLocationCashInsurerCMS ratingER waitReadmit
Steele Memorial Medical Center Salmon, ID $32,193 $40,348 ★ 3/5 — —
Bonner General Hospital Sandpoint, ID $36,605 $22,683 ★ 2/5 161 min —
St Luke's Regional Medical Center Boise, ID $129,068 $26,162 ★ 5/5 168 min —
St Luke's Elmore Medical Center Mountain Home, ID $129,068 $26,162 ★ 5/5 112 min —
St Luke's McCall Mccall, ID $143,412 — — 145 min —
St Luke's Wood River Medical Center Ketchum, ID $143,412 $61,332 ★ 4/5 140 min —
St Luke's Nampa Medical Center Nampa, ID $143,716 $24,239 ★ 5/5 158 min —
St Lukes Magic Valley Medical Center Twin Falls, ID $145,168 $25,128 ★ 4/5 186 min —
St Luke's Jerome Jerome, ID $145,168 $25,128 — 100 min —

CMS rating = overall hospital star rating (1–5); ER wait = median minutes in the emergency department; Readmit = 30-day readmission rate (lower is better) — all from Medicare’s Care Compare; “—” = not reported. Data last updated October 2026. Prices from hospitals’ machine-readable files (45 CFR §180); Medicare benchmark from CMS PFS/CLFS/IPPS. Prices below 15% of the median are excluded as likely partial or mis-coded charges. Estimates — confirm with the hospital. Report an incorrect price.

Price comparison (median)

Chargemaster (list price)
$143,412
Cash / self-pay
$143,412
Insurer-negotiated
$24,636
Medicare pays
$18,054
$35,723$145,168
Median cash $143,412  ·  Medicare $18,054  ·  bar = typical cash range (10th–90th percentile)
Is this a fair price?
1× Medicarefair ≈2×5×+

Typical cash price here is $143,412 — about 7.9× the Medicare rate ($18,054). High vs Medicare. A fair cash price is usually within ~2× Medicare ($36,108).

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Rough estimate from this procedure’s median insurer-negotiated rate. Your actual cost depends on your plan — confirm with your insurer.

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Knee replacement cost in other states

All Knee replacement prices (national) → · All hospitals in Idaho →