Posted commercial rates at 7 Illinois hospitals, each next to its own Medicare base rate.
Open in the explorerAll statesEvery bill for the whole procedure
| Hospital | Median across insurers | × Medicare | Insurers | File date |
|---|---|---|---|---|
| Endeavor Health Northwest Community Hospital Arlington Heights | $4,508 | 1.1× | 2 | 2026-04-01 |
| Endeavor Health Evanston Hospital Evanston | $4,837 | 1.2× | 2 | 2026-04-01 |
| Endeavor Health Edward Hospital Naperville | $5,132 | 1.2× | 2 | 2026-04-01 |
| Endeavor Health Elmhurst Hospital Elmhurst | $5,829 | 1.4× | 2 | 2026-04-01 |
| Loyola University Medical Center Maywood | $6,360 | 1.5× | 1 | 2026-03-31 |
| Rush University Medical Center Chicago | $7,620 | 1.8× | 2 | 2026-09-25 |
| University of Chicago Medical Center Chicago | $7,876 | 1.9× | 2 | 2026-04-01 |
| Hospital | Median across insurers | × Medicare | Insurers | File date |
|---|---|---|---|---|
| Endeavor Health Northwest Community Hospital Arlington Heights | $4,508 | 1.1× | 2 | 2026-04-01 |
| Endeavor Health Evanston Hospital Evanston | $4,837 | 1.2× | 2 | 2026-04-01 |
| Endeavor Health Edward Hospital Naperville | $5,132 | 1.2× | 2 | 2026-04-01 |
| Endeavor Health Elmhurst Hospital Elmhurst | $5,829 | 1.4× | 2 | 2026-04-01 |
| Loyola University Medical Center Maywood | $6,360 | 1.5× | 1 | 2026-03-31 |
| Rush University Medical Center Chicago | $7,498 | 1.8× | 2 | 2026-09-25 |
| University of Chicago Medical Center Chicago | $7,876 | 1.9× | 2 | 2026-04-01 |
| Hospital | Median across insurers | × Medicare | Insurers | File date |
|---|---|---|---|---|
| Endeavor Health Evanston Hospital Evanston | $5,908 | 0.9× | 2 | 2026-04-01 |
| Endeavor Health Northwest Community Hospital Arlington Heights | $6,020 | 0.9× | 2 | 2026-04-01 |
| Loyola University Medical Center Maywood | $6,360 | 1.0× | 1 | 2026-03-31 |
| Endeavor Health Edward Hospital Naperville | $7,044 | 1.1× | 2 | 2026-04-01 |
| Endeavor Health Elmhurst Hospital Elmhurst | $7,742 | 1.2× | 2 | 2026-04-01 |
| University of Chicago Medical Center Chicago | $9,241 | 1.4× | 2 | 2026-04-01 |
| Rush University Medical Center Chicago | $9,570 | 1.5× | 2 | 2026-09-25 |
7 Illinois hospitals post usable commercial rates for ercp (bile duct endoscopy) in their federal price-transparency files. For CPT 43264, hospital outpatient, the median across 7 hospitals is $5,829, 1.4× each hospital's local Medicare base rate. Your share depends on your plan's deductible and coinsurance; the surgeon and anesthesia bill separately.