Nasal endoscopy, diagnostic at Kaiser Foundation Hospital, Riverside
CPT 31231 · Riverside, CA
These are Kaiser Foundation Hospital, Riverside'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 42 California hospitals we index that post a cash price for this service: lowest $78.40, median $540.80, highest $18,447.52. See every hospital.
Nearby hospitals, same service
| Hospital | Distance | Cash price | Gross charge | File date |
|---|---|---|---|---|
| Kaiser Foundation Hospital Fontana/Ontario Fontana, CA | 11.2 mi | $540.80 | $1,040.00 | 2026-04-01 |
| Arrowhead Regional Medical Center Colton, CA | 13.5 mi | $1,212.00 | $1,212.00 | 2026-02-25 |
| Kaiser Foundation Hospital-Moreno Valley Moreno Valley, CA | 21.8 mi | $540.80 | $1,040.00 | 2026-04-01 |
| Kaiser Foundation Hospital - Orange County - Anaheim Anaheim, CA | 22.5 mi | $540.80 | $1,040.00 | 2026-04-01 |
| Providence Mission Hospital Mission Viejo, CA | 23.9 mi | $407.04 | $848.00 | 2026-04-01 |
| Children's Hospital of Orange County Orange, CA | 24.0 mi | $822.00 | $822.00 | 2026-03-19 |
| Providence St. Jude Medical Center Fullerton, CA | 24.3 mi | $225.60 | $470.00 | 2026-04-01 |
| Memorialcare Saddleback Medical Center Laguna Hills, CA | 25.9 mi | $493.00 | $493.00 | 2026-04-01 |
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 |
|---|---|---|---|---|
| NASAL ENDOSCOPY DIAGNOSTIC UNI/BI SPX line 4157 | both | $540.80 | $1,040.00 | $193.00 – $573.00 |
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 Kaiser Foundation Hospital, Riverside prices