Nasal endoscopy, diagnostic at Kaiser Foundation Hospital - Walnut Creek
CPT 31231 · Walnut Creek, CA
These are Kaiser Foundation Hospital - Walnut Creek'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 35 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 - Oakland/Richmond Oakland, CA | 10.5 mi | $582.40 | $1,040.00 | 2026-04-01 |
| Kaiser Foundation Hospital - San Leandro San Leandro, CA | 13.9 mi | $582.40 | $1,040.00 | 2026-04-01 |
| Kaiser Foundation Hospital - Antioch Antioch, CA | 14.9 mi | $582.40 | $1,040.00 | 2026-04-01 |
| Kaiser Foundation Hospital - South San Francisco South San Francisco, CA | 26.4 mi | $582.40 | $1,040.00 | 2026-04-01 |
| Kaiser Foundation Hospital - Fremont Fremont, CA | 27.1 mi | $582.40 | $1,040.00 | 2026-04-01 |
| Marinhealth Medical Center Greenbrae, CA | 28.4 mi | $475.20 | $792.00 | 2026-03-26 |
| Kaiser Foundation Hospital - Redwood City Redwood City, CA | 28.7 mi | $582.40 | $1,040.00 | 2026-04-01 |
| Kaiser Foundation Hospital - Woodland Hills Woodland Hills, CA | 319.9 mi | $540.80 | $1,040.00 | 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 4323 | both | $582.40 | $1,040.00 | $235.00 – $735.00 |
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 - Walnut Creek prices