Prices at 11 hospitals in South Dakota, from their machine-readable files. Here the median cash price is $47,806 — 31% above the US median ($36,604), roughly 2.6× the Medicare rate.
Lowest cash prices
| Hospital | Location | Cash | Insurer | CMS rating | ER wait | Readmit |
|---|---|---|---|---|---|---|
| Black Hills Surgical Hospital Llc | Rapid City, SD | $18,634 | $13,755 | — | — | — |
| Dunes Surgical Hospital | Dakota Dunes, SD | $29,092 | $14,001 | — | — | — |
| Monument Health Spearfish Hospital | Spearfish, SD | $66,520 | $17,717 | ★ 4/5 | 144 min | — |
| Monument Health Rapid City Hospital | Rapid City, SD | $78,375 | $26,347 | ★ 3/5 | 172 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)
Typical cash price here is $47,806 — about 2.6× the Medicare rate ($18,054). On the higher side. A fair cash price is usually within ~2× Medicare ($36,108).
💡 Asking for the cash price instead of the $72,718 list price could save about $24,912 (34%).
Rough estimate from this procedure’s median insurer-negotiated rate. Your actual cost depends on your plan — confirm with your insurer.
Knee replacement cost in other states
All Knee replacement prices (national) → · All hospitals in South Dakota →