Nasal endoscopy, diagnostic at Northwestern Lake Forest Hospital
CPT 31231 · 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 29 Illinois hospitals we index that post a cash price for this service: lowest $110.01, median $218.88, highest $34,225.51. See every hospital.
Nearby hospitals, same service
| Hospital | Distance | Cash price | Gross charge | File date |
|---|---|---|---|---|
| Advocate Lutheran General Hospital Park Ridge, IL | 15.4 mi | $215.00 | $430.00 | 2025-11-04 |
| Advocate Good Shepherd Hospital Barrington, IL | 16.6 mi | $215.00 | $430.00 | 2025-11-04 |
| Swedish Hospital Chicago, IL | 20.0 mi | $198.00 | $198.00 | 2026-04-01 |
| Community First Medical Center Chicago, IL | 20.2 mi | $218.88 | $437.75 | 2026-04-01 |
| Louis A Weiss Memorial Hospital Chicago, IL | 20.9 mi | $163.94 | $482.19 | 2025-03-17 |
| Northwestern Medicine McHenry McHenry, IL | 22.8 mi | $25,117.60 | $35,882.29 | 2026-04-01 |
| Loyola Gottlieb Memorial Hospital Melrose Park, IL | 23.0 mi | $110.01 | $579.00 | 2026-03-31 |
| Advocate Illinois Masonic Medical Center Chicago, IL | 23.2 mi | $215.00 | $430.00 | 2025-11-04 |
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 31231 in this hospital's file
| Row in the hospital's file | Setting | Cash | Gross | Insurer min – max |
|---|---|---|---|---|
| HB Nasal Endoscopy Dx standard_charge_information[1422] | outpatient | $34,225.51 | $48,893.59 | $7,923.00 – $8,802.00 |
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