Posted commercial rates at 12 Illinois hospitals, each next to its own Medicare base rate.
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| Hospital | Median across insurers | × Medicare | Insurers | File date |
|---|---|---|---|---|
| Sarah Bush Lincoln Health Center Mattoon | $15,476 | 1.0× | 1 | 2026-06-03 |
| Endeavor Health Northwest Community Hospital Arlington Heights | $18,637 | 1.3× | 3 | 2026-04-01 |
| Endeavor Health Edward Hospital Naperville | $21,513 | 1.4× | 3 | 2026-04-01 |
| Endeavor Health Elmhurst Hospital Elmhurst | $23,857 | 1.6× | 3 | 2026-04-01 |
| Alton Memorial Hospital Alton | $25,534 | 1.7× | 2 | 2025-12-15 |
| Northwestern Medicine Central DuPage Hospital Winfield | $25,822 | 1.7× | 1 | 2026-04-01 |
| Endeavor Health Evanston Hospital Evanston | $27,390 | 1.8× | 3 | 2026-04-01 |
| Loyola University Medical Center Maywood | $29,042 | 1.9× | 4 | 2026-03-31 |
| Rush University Medical Center Chicago | $29,746 | 2.0× | 4 | 2026-09-25 |
| Advocate Christ Medical Center Oak Lawn | $33,170 | 2.2× | 4 | 2025-11-04 |
| Advocate Lutheran General Hospital Park Ridge | $33,170 | 2.2× | 4 | 2025-11-04 |
| University of Chicago Medical Center Chicago | $36,130 | 2.4× | 5 | 2026-04-01 |
| Hospital | Median across insurers | × Medicare | Insurers | File date |
|---|---|---|---|---|
| Sarah Bush Lincoln Health Center Mattoon | $8,153 | 1.0× | 1 | 2026-06-03 |
| Endeavor Health Northwest Community Hospital Arlington Heights | $9,792 | 1.3× | 3 | 2026-04-01 |
| Endeavor Health Edward Hospital Naperville | $11,303 | 1.4× | 3 | 2026-04-01 |
| Endeavor Health Elmhurst Hospital Elmhurst | $12,534 | 1.6× | 3 | 2026-04-01 |
| Endeavor Health Evanston Hospital Evanston | $14,391 | 1.8× | 3 | 2026-04-01 |
| Loyola University Medical Center Maywood | $15,260 | 1.9× | 4 | 2026-03-31 |
| Rush University Medical Center Chicago | $15,670 | 2.0× | 4 | 2026-09-25 |
| University of Chicago Medical Center Chicago | $19,033 | 2.4× | 5 | 2026-04-01 |
12 Illinois hospitals post usable commercial rates for sepsis (hospital stay) in their federal price-transparency files. For inpatient stay (MS-DRG 871), the median across 12 hospitals is $26,606, 1.8× each hospital's local Medicare base rate. Your share depends on your plan's deductible and coinsurance; the surgeon and anesthesia bill separately.