Knee joint injection cost in Illinois

Prices at 86 hospitals in Illinois, from their machine-readable files. Here the median cash price is $599 — 26% above the US median ($475), roughly 8.7× the Medicare rate.

Lowest cash prices

HospitalLocationCashInsurerCMS ratingER waitReadmit
Salem Township Hospital Salem, IL $101 $246 ★ 4/5 146 min —
Gateway Regional Medical Center Granite City, IL $158 — ★ 2/5 140 min —
Community Hospital of Staunton Staunton, IL $187 $167 — — —
Touchette Regional Hospital Inc Centreville, IL $205 $1,737 — 126 min —
Washington County Hospital Nashville, IL $208 — — 84 min —
Hopedale Hospital Hopedale, IL $223 $67 — 130 min —
Mason District Hospital Havana, IL $250 $189 — 104 min —
Saint Anthony Hospital Chicago, IL $277 $427 ★ 2/5 181 min —
Memorial Hospital Carthage, IL $280 $315 ★ 4/5 142 min —
Advocate Good Samaritan Hospital Downers Grove, IL $288 $591 ★ 4/5 187 min —
Hamilton Memorial Hospital Mcleansboro, IL $315 — ★ 3/5 116 min —
Amita Health Resurrection Medical Center Chicago, IL $327 $327 ★ 3/5 186 min —
Mercy Harvard Hospital Harvard, IL $329 $3,913 — 118 min —
Carlinville Area Hospital Carlinville, IL $356 $217 ★ 2/5 124 min —
Louis a Weiss Memorial Hospital Chicago, IL $359 $308 ★ 1/5 210 min —
Montrose Behavioral Health Hospital Chicago, IL $359 $308 — — —
Sparta Community Hospital Sparta, IL $373 $284 ★ 3/5 — —
West Suburban Medical Center Oak Park, IL $418 $308 ★ 1/5 272 min —
Advocate Trinity Hospital Chicago, IL $450 $582 ★ 2/5 247 min —
Advocate Illinois Masonic Medical Center Chicago, IL $453 $573 ★ 3/5 237 min —
Riverside Medical Center Kankakee, IL $463 $340 ★ 4/5 167 min —
Saint Joseph Medical Center Joliet, IL $470 $338 ★ 1/5 197 min —
Presence St Marys Hospital Kankakee, IL $470 $338 ★ 4/5 137 min —
Presence Mercy Medical Center Aurora, IL $470 $338 ★ 3/5 189 min —
Presence Saints Mary and Elizabeth Medical Center Chicago, IL $470 $338 ★ 3/5 192 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)
$1,057
Cash / self-pay
$599
Insurer-negotiated
$413
Medicare pays
$69
$222$1,454
Median cash $599  ·  Medicare $69  ·  bar = typical cash range (10th–90th percentile)
Is this a fair price?
1× Medicarefair ≈2×5×+

Typical cash price here is $599 — about 8.7× the Medicare rate ($69). High vs Medicare. A fair cash price is usually within ~2× Medicare ($138).

💡 Asking for the cash price instead of the $1,057 list price could save about $457 (43%).

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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 joint injection cost in other states

All Knee joint injection prices (national) → · All hospitals in Illinois →