Sigmoidoscopy cost in Washington
In Washington, 19 hospitals publish a cash price for flexible sigmoidoscopy, diagnostic (lower colon only): from $129.50 to $3,811.60, with a median of $1,307.64. The lowest price is at Providence Mount Carmel Hospital (Colville) and 1 other hospital. The highest price is 29.4× the lowest.
Outpatient cash prices, one line per hospital — its lowest listed price for code 45330. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 23, 2026.
Lowest$129.50Providence Mount Carmel Hospital + 1 more
Median$1,307.64half pay less
Highest$3,811.60in Washington
Lowest saves$1,178.14vs the median
Hospitals in Washington, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| Providence Mount Carmel Hospital lowest Colville · Spokane-Spokane Valley, WA HC PR 45330 DIAGNOSTIC SIGMOIDOSCOPY | $129.50 | $185.00 | Apr 1, 2026 source file |
| Providence St Joseph Hospital lowest Chewelah · Spokane-Spokane Valley, WA HC PR 45330 DIAGNOSTIC SIGMOIDOSCOPY | $129.50 | $185.00 | Apr 1, 2026 source file |
| Seattle Children's Hospital Seattle · Seattle-Tacoma-Bellevue, WA Sigmoidoscopy Flx Dx W/WO Collj Specimens | $238.00 | $238.00 | — source file |
| Legacy Salmon Creek Medical Center Vancouver · Portland-Vancouver-Hillsboro, OR-WA PR SIGMOIDOSCOPY FLX DX W/COLLJ SPEC BR/WA IF PFRMD | $338.65 | $521.00 | Apr 1, 2026 source file |
| Cascade Valley Hospital Arlington · Seattle-Tacoma-Bellevue, WA HC SIGMOID - FLEXIBLE | $340.80 | $426.00 | — source file |
| Jefferson Healthcare Port Townsend · Port Townsend, WA Diagnostic exam of lower portion of large bowel using a flexible endoscope | $364.80 | $456.00 | Aug 6, 2026 source file |
| Overlake Medical Center & Clinics Bellevue · Seattle-Tacoma-Bellevue, WA Hc 45330 Flex Sig Diag/Brushing | $531.50 | $1,063.00 | Apr 1, 2026 source file |
| PeaceHealth United General Medical Center Sedro Woolley · Mount Vernon-Anacortes, WA DIAGNOSTIC EXAM OF LOWER PORTION OF LARGE BOWEL USING A FLEXIBLE ENDOSCOPE | $645.45 | $993.00 | — source file |
| Skagit Valley Hospital Mount Vernon · Mount Vernon-Anacortes, WA HC FLEX SIGMOIDOSCOPY, DIAGNOSTIC | $817.60 | $1,022.00 | — source file |
| Virginia Mason Medical Center Seattle · Seattle-Tacoma-Bellevue, WA FMT, DEL VIA FLEX SIG W/WO MOD SEDATION, SELF PAY | $1,307.64 | $2,564.00 | — source file |
| PeaceHealth Peace Island Medical Center Friday Harbor · Friday Harbor, WA DIAGNOSTIC EXAM OF LOWER PORTION OF LARGE BOWEL USING A FLEXIBLE ENDOSCOPE | $1,381.90 | $2,126.00 | — source file |
| Providence Holy Family Hospital Spokane · Spokane-Spokane Valley, WA HC ED SIGMOID DX FLX W WO SPEC COLL CDM | $1,621.20 | $2,316.00 | Apr 1, 2026 source file |
| Providence Centralia Hospital Centralia · Centralia, WA HC ED SIGMOID DX FLX W WO SPEC COLL CDM | $1,642.16 | $3,158.00 | Apr 1, 2026 source file |
| Providence St Peter Hospital Olympia · Olympia-Lacey-Tumwater, WA HC ED SIGMOID DX FLX W WO SPEC COLL CDM | $1,642.16 | $3,158.00 | Apr 1, 2026 source file |
| Kadlec Regional Medical Center Richland · Kennewick-Richland, WA HC ED SIGMOID DX FLX W WO SPEC COLL CDM | $1,773.10 | $2,533.00 | Apr 1, 2026 source file |
| Providence St Mary Medical Center Walla Walla · Walla Walla, WA HC ED SIGMOID DX FLX W WO SPEC COLL CDM | $1,773.10 | $2,533.00 | Apr 1, 2026 source file |
| St. Joseph Medical Center Bellingham · Bellingham, WA DIAGNOSTIC EXAM OF LOWER PORTION OF LARGE BOWEL USING A FLEXIBLE ENDOSCOPE | $2,267.20 | $3,488.00 | — source file |
| PeaceHealth Southwest Medical Center Vancouver · Portland-Vancouver-Hillsboro, OR-WA DIAGNOSTIC EXAM OF LOWER PORTION OF LARGE BOWEL USING A FLEXIBLE ENDOSCOPE | $2,346.50 | $3,610.00 | — source file |
| St. John Medical Center Longview · Longview-Kelso, WA DIAGNOSTIC EXAM OF LOWER PORTION OF LARGE BOWEL USING A FLEXIBLE ENDOSCOPE | $3,811.60 | $5,864.00 | — source file |
By metro area
Each metro page compares every listing, including prices for both sides of the body.
| Metro area | Hospitals | Lowest | Median |
|---|---|---|---|
| Seattle-Tacoma-Bellevue, WA | 4 | $238.00 | $436.15 |
| Spokane-Spokane Valley, WA | 3 | $129.50 | $129.50 |
| Mount Vernon-Anacortes, WA | 2 | $645.45 | $731.52 |
| Portland-Vancouver-Hillsboro, OR-WA | 2 | $338.65 | $1,342.58 |
| Bellingham, WA | 1 | $2,267.20 | $2,267.20 |
| Centralia, WA | 1 | $1,642.16 | $1,642.16 |
| Friday Harbor, WA | 1 | $1,381.90 | $1,381.90 |
| Kennewick-Richland, WA | 1 | $1,773.10 | $1,773.10 |
| Longview-Kelso, WA | 1 | $3,811.60 | $3,811.60 |
| Olympia-Lacey-Tumwater, WA | 1 | $1,642.16 | $1,642.16 |
| Port Townsend, WA | 1 | $364.80 | $364.80 |
| Walla Walla, WA | 1 | $1,773.10 | $1,773.10 |
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.
Flexible sigmoidoscopy, diagnostic (lower colon only) in other states
- Alabama$1,773.00
- Alaska$1,620.84
- Arizona$2,618.00
- Arkansas$292.50
- California$1,872.00
- Colorado$1,546.30
- Connecticut$2,255.37
- Delaware$1,480.08
- Florida$2,801.60
- Georgia$3,011.00
- Idaho$2,509.00
- Illinois$776.90
- Indiana$581.00
- Iowa$427.20
- Kansas$1,731.52
- Kentucky$601.22
- Louisiana$225.82
- Maine$472.33
- Maryland$1,622.93
- Massachusetts$1,668.45
- Michigan$381.24
- Minnesota$994.10
- Mississippi$1,096.00
- Missouri$926.00
- Montana$997.60
- Nebraska$342.28
- Nevada$1,011.00
- New Hampshire$383.72
- New Jersey$1,086.34
- New Mexico$641.34
- New York$950.10
- North Carolina$1,284.13
- North Dakota$1,428.43
- Ohio$2,510.95
- Oklahoma$1,696.10
- Oregon$414.00
- Pennsylvania$598.20
- Rhode Island$2,331.60
- South Carolina$4,040.66
- South Dakota$2,207.98
- Tennessee$393.75
- Texas$1,047.06
- Utah$1,283.66
- Vermont$219.98
- Virginia$1,204.25
- West Virginia$840.00
- Wisconsin$669.50
- Wyoming$764.52
Median cash price across the state's hospitals.