Sigmoidoscopy cost in Santa Rosa, CA — inpatient
In Santa Rosa-Petaluma, CA, 4 hospitals list a cash price for flexible sigmoidoscopy, diagnostic (lower colon only) as an inpatient: from $183.09 to $2,251.20, with a median of $1,571.06. The lowest listed price is at Healdsburg Hospital — $1,387.97 less than the median here. Across California, the median is $1,872.00 at 76 hospitals.
Cash prices at 4 facilities across 3 cities for code 45330, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Santa Rosa-Petaluma, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Healdsburg Hospital lowest Healdsburg, CA · (707) 431-6500 HC PR 45330 DIAGNOSTIC SIGMOIDOSCOPY | $183.09 | $359.00 | — | 49% | Apr 1, 2026 source file |
| Healdsburg Hospital Healdsburg, CA · (707) 431-6500 HC ED SIGMOID DX FLX W WO SPEC COLL CDM | $847.62 | $1,662.00 | — | 49% | Apr 1, 2026 source file |
| Petaluma Valley Hospital Petaluma, CA · (707) 778-1111 HC ED SIGMOID DX FLX W WO SPEC COLL CDM | $1,529.49 | $2,999.00 | — | 49% | Apr 1, 2026 source file |
| Providence Santa Rosa Memorial Hospital Santa Rosa, CA · (707) 525-5300 HC ED SIGMOID DX FLX W WO SPEC COLL CDM | $1,612.62 | $3,162.00 | — | 49% | Apr 1, 2026 source file |
| Kaiser Foundation Hospital - Santa Rosa Santa Rosa, CA · (707) 571-4000 SIGMOIDOSCOPY FLX DX W/COLLJ SPEC BR/WA IF PFRMD | $2,251.20 | $4,020.00 | $1,102.00–$3,450.00 | 44% | — source file |
Inpatient: lowest $183.09, median $1,571.06, highest $2,251.20 — a 12.3× difference within the same market.
As an outpatient, the same code is billed by 4 facilities here, median $1,571.06 — that is the price to compare if you are not being admitted.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
A flexible sigmoidoscopy uses a thin camera to look at the rectum and the lower part of the colon, not the whole colon. It is used to check symptoms like bleeding or changes in bowel habits, and sometimes for screening.
What the price covers
The listed price usually covers the procedure. The doctor's fee may be billed separately, and a biopsy or polyp removal changes the code and adds pathology.