Colonoscopy, diagnostic at Northwestern Lake Forest Hospital
CPT 45378 · Lake Forest, IL
These are Northwestern Lake Forest Hospital's own posted figures from its standard-charges file dated April 1, 2026. They are not a quote. Source: the hospital's file · its price transparency page.
Across 20 Illinois hospitals we index that post a cash price for this service: lowest $301.23, median $4,202.23, highest $8,799.54. See every hospital.
Nearby hospitals, same service
| Hospital | Distance | Cash price | Gross charge | File date |
|---|---|---|---|---|
| Saint Francis Hospital-Evanston Evanston, IL | 17.0 mi | $991.00 | $13,712.00 | 2026-09-01 |
| Northwestern Medicine McHenry McHenry, IL | 22.8 mi | $4,675.65 | $6,679.50 | 2026-04-01 |
| Loyola Gottlieb Memorial Hospital Melrose Park, IL | 23.0 mi | $878.18 | $4,622.00 | 2026-03-31 |
| Loyola University Medical Center Maywood, IL | 24.6 mi | $1,063.06 | $4,622.00 | 2026-03-31 |
| Humboldt Park Health Chicago, IL | 24.9 mi | $396.61 | $1,416.45 | 2026-09-29 |
| University of Illinois Hospital and Clinics Chicago, IL | 26.2 mi | $2,022.30 | $6,741.00 | 2026-04-01 |
| Northwestern Memorial Hospital Chicago, IL | 26.8 mi | $4,336.60 | $6,195.14 | 2026-04-01 |
| Mt Sinai Hospital Medical Center Chicago, IL | 28.7 mi | $977.45 | $1,396.35 | 2026-09-22 |
Distances are straight-line from ZIP code centers. Each hospital's figures come from its own file; files are updated on different dates.
Every row for CPT 45378 in this hospital's file
| Row in the hospital's file | Setting | Cash | Gross | Insurer min – max |
|---|---|---|---|---|
| HB Colonoscopy Flx Dx W/Collj Spec When Pfrmd standard_charge_information[22869] | outpatient | $4,336.60 | $6,195.14 | $2,741.00 – $3,045.00 |
| HB Colonoscopy Flx Dx W/Collj Spec When Pfrmd standard_charge_information[33597] | outpatient | $2,524.90 | $3,607.00 | $598.76 – $3,607.00 |
The first row is the one used above. A price for one code usually covers the hospital's facility charge only; the doctor, anesthesia, pathology and other services can be billed separately. Ask the hospital for a good faith estimate before a scheduled service: if you pay yourself and the bill comes in $400 or more above the estimate, you can dispute it under the No Surprises Act.
Check a bill from this hospital All Northwestern Lake Forest Hospital prices