Prices at 88 hospitals in Illinois, from their machine-readable files. Here the median cash price is $77 — 50% above the US median ($51), roughly 11.5× the Medicare rate.
Lowest cash prices
| Hospital | Location | Cash | Insurer | CMS rating | ER wait | Readmit |
|---|---|---|---|---|---|---|
| John H Stroger Jr Hospital | Chicago, IL | $12 | $8 | ★ 2/5 | 280 min | 15.0% |
| Provident Hospital of Chicago | Chicago, IL | $12 | $8 | — | 222 min | 15.5% |
| Riverside Medical Center | Kankakee, IL | $16 | $7 | ★ 4/5 | 168 min | 15.0% |
| Saint Anthony Hospital | Chicago, IL | $18 | $27 | ★ 2/5 | 191 min | 16.5% |
| Mason District Hospital | Havana, IL | $18 | $18 | — | 98 min | 15.1% |
| Carle Foundation Hospital | Urbana, IL | $28 | $7 | ★ 2/5 | 214 min | 15.9% |
| Mc Donough District Hospital | Macomb, IL | $29 | $44 | ★ 3/5 | 152 min | 15.1% |
| Carle Hoopeston Regional Health Center | Hoopeston, IL | $30 | $22 | — | — | 15.5% |
| Louis a Weiss Memorial Hospital | Chicago, IL | $33 | $7 | ★ 1/5 | 212 min | 16.1% |
| Montrose Behavioral Health Hospital | Chicago, IL | $33 | $7 | — | — | — |
| Carle Health Methodist Hospital | Peoria, IL | $34 | $9 | ★ 2/5 | 220 min | 14.7% |
| Trinity Rock Island | Rock Island, IL | $34 | $7 | ★ 3/5 | 172 min | 15.4% |
| Advocate Trinity Hospital | Chicago, IL | $40 | $33 | ★ 2/5 | 244 min | 16.0% |
| Advocate Good Shepherd Hospital | Barrington, IL | $40 | $34 | ★ 5/5 | 194 min | 15.0% |
| West Suburban Medical Center | Oak Park, IL | $43 | $7 | ★ 1/5 | 271 min | 16.0% |
| Advocate Lutheran General Hospital | Park Ridge, IL | $44 | $35 | ★ 4/5 | 220 min | 14.1% |
| Advocate Christ Hospital & Medical Center | Oak Lawn, IL | $45 | $36 | ★ 3/5 | 252 min | 15.8% |
| Advocate Illinois Masonic Medical Center | Chicago, IL | $48 | $33 | ★ 3/5 | 236 min | 16.2% |
| Advocate Condell Medical Center | Libertyville, IL | $49 | $26 | ★ 4/5 | 216 min | 14.8% |
| Advocate Good Samaritan Hospital | Downers Grove, IL | $49 | $36 | ★ 4/5 | 189 min | 14.9% |
| Touchette Regional Hospital Inc | Centreville, IL | $49 | $8 | — | 126 min | — |
| Mercy Harvard Hospital | Harvard, IL | $52 | $12 | — | 117 min | 15.2% |
| Hopedale Hospital | Hopedale, IL | $57 | $7 | — | 132 min | 14.9% |
| Ferrell Hospital Community Foundations | Eldorado, IL | $58 | $33 | ★ 1/5 | — | 15.3% |
| Javon Bea Hospital | Rockford, IL | $60 | $7 | ★ 3/5 | 258 min | 14.6% |
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 June 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 $77 — about 11.5× the Medicare rate ($7). High vs Medicare. A fair cash price is usually within ~2× Medicare ($13).
💡 Asking for the cash price instead of the $116 list price could save about $39 (34%).
Rough estimate from this procedure’s median insurer-negotiated rate. Your actual cost depends on your plan — confirm with your insurer.
By city
Magnesium blood test cost in other states
All Magnesium blood test prices (national) → · All hospitals in Illinois →