Sigmoidoscopy cost in Washington
In Washington, 32 hospitals publish a cash price for flexible sigmoidoscopy, diagnostic (lower colon only): from $129.50 to $5,267.80, with a median of $1,571.88. The lowest price is at Providence Mount Carmel Hospital (Colville) and 1 other hospital. The highest price is 40.7× the lowest.
- The median here, $1,571.88, is 31% above the US median of $1,203.93.
- That is 1.7× Medicare's 2026 national rate for the same service ($950.10).
- Washington ranks 32nd of 47 states by median, cheapest first.
- 2 of 32 hospitals list a cash price equal to their full list price, with no self-pay discount.
Washington law (RCW 70.170.060) requires hospital charity care: patients with family income up to 300% of the federal poverty level owe nothing at hospitals in large health systems (200% at other hospitals), with 75% and 50% discounts up to 400% (300% at other hospitals). It covers the part of the bill a patient owes, insured or not. Ask the hospital for its charity care application. Other states' laws.
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 Nov 6, 2026. See them on a map
Lowest$129.50Providence Mount Carmel Hospital + 1 more
Median$1,571.88half of hospitals charge less
Highest$5,267.80in Washington
Lowest saves$1,442.38vs 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 |
| Arbor Health Morton Hospital Morton · Centralia, WA Diagnostic exam of lower portion of large bowel using a flexible endoscope | $207.70 | $335.00 | May 18, 2026 source file |
| Astria Toppenish Hospital Toppenish · Yakima, WA 45330 Sigmoidoscopy, flexible | $211.25 | $325.00 | Apr 1, 2026 source file |
| Kittitas County Public Hospital Dist 1 Ellensburg · Ellensburg, WA Diagnostic exam of lower portion of large bowel using a flexible endoscope | $259.25 | $305.00 | Oct 7, 2026 source file |
| Cascade Valley Hospital Arlington · Seattle-Tacoma-Bellevue, WA HC SIGMOID - FLEXIBLE | $340.80 | $426.00 | Mar 26, 2026 source file |
| Astria Sunnyside Hospital Sunnyside · Kennewick-Richland, WA 45330 Sigmoidoscopy, flexible | $414.39 | $727.00 | Apr 1, 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 | Mar 21, 2026 source file |
| Lourdes Health Pasco · Kennewick-Richland, WA DIAGNOSTIC SIGMOIDOSCOPY | $761.46 | $1,903.66 | Jul 10, 2026 source file |
| Skagit Valley Hospital Mount Vernon · Mount Vernon-Anacortes, WA HC FLEX SIGMOIDOSCOPY, DIAGNOSTIC | $817.60 | $1,022.00 | Mar 26, 2026 source file |
| Snoqualmie Valley Hospital Snoqualmie · Seattle-Tacoma-Bellevue, WA Facility Fee HC 45330 FLEX SIG DIAG/BRUSHING | $918.74 | $1,584.03 | Apr 14, 2026 source file |
| Forks Community Hospital Forks · Port Townsend, WA Diagnostic exam of lower portion of large bowel using a flexible endoscope | $1,173.60 | $1,467.00 | Oct 27, 2026 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 | Jan 1, 2026 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 | Mar 20, 2026 source file |
| Ferry County Memorial Hospital Republic · Republic, WA SIGMOIDOSCOPY | $1,522.55 | $1,791.24 | Sep 14, 2026 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 |
| Prov Sacred Hrt Medical Center & Childs Hospital Spokane · Spokane-Spokane Valley, WA HC ED SIGMOID DX FLX W WO SPEC COLL CDM | $1,625.40 | $2,322.00 | Apr 1, 2026 source file |
| Valley Medical Center Renton · Seattle-Tacoma-Bellevue, WA Sigmoidoscopy Flx Dx W/Collj Spec Br/Wa if Pfrmd | $1,626.10 | $2,323.00 | Mar 12, 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 |
| Klickitat Valley Hospital Goldendale · Goldendale, WA Sigmoidoscopy Diagnostic OR | $1,680.00 | $2,100.00 | Dec 2, 2024 source file |
| Willapa Harbor Hospital South Bend · South Bend, WA DIAGNOSTIC SIGMOIDOSCOPY | $1,757.70 | $2,511.00 | Feb 24, 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 |
| Cascade Medical Center Leavenworth · Wenatchee-East Wenatchee, WA Sigmoidoscopy diag w/spec coll | $2,054.40 | $2,568.00 | May 15, 2026 source file |
| Pullman Regional Hospital Pullman · Pullman, WA Diagnostic exam of lower portion of large bowel using a flexible endoscope | $2,079.10 | $2,446.00 | Jun 9, 2026 source file |
| PeaceHealth 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 | Mar 21, 2026 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 | Mar 20, 2026 source file |
| Lake Chelan Community Hospital Chelan · Wenatchee-East Wenatchee, WA Diagnostic exam of lower portion of large bowel using a flexible endoscope | $2,996.00 | $2,996.00 | Sep 1, 2026 source file |
| PeaceHealth 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 | Mar 21, 2026 source file |
| Seattle Children's Hospital Seattle · Seattle-Tacoma-Bellevue, WA Diagnostic Sigmoidoscopy | $5,267.80 | $5,267.80 | Mar 31, 2026 source file |
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
File date When the hospital last updated its price file, as the file says itself. A dash means the file gives no date.
At or below Medicare This cash price is at or below what Medicare pays a hospital for the same service, which is unusually low. It is what the hospital's file says; confirm it and what it includes before booking. More
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More
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 | 6 | $340.80 | $1,113.19 |
| Spokane-Spokane Valley, WA | 4 | $129.50 | $875.35 |
| Kennewick-Richland, WA | 3 | $414.39 | $761.46 |
| Centralia, WA | 2 | $207.70 | $924.93 |
| Mount Vernon-Anacortes, WA | 2 | $645.45 | $731.52 |
| Wenatchee-East Wenatchee, WA | 2 | $2,054.40 | $2,525.20 |
| Bellingham, WA | 1 | $2,267.20 | $2,267.20 |
| Ellensburg, WA | 1 | $259.25 | $259.25 |
| Friday Harbor, WA | 1 | $1,381.90 | $1,381.90 |
| Goldendale, WA | 1 | $1,680.00 | $1,680.00 |
| 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 | $1,173.60 | $1,173.60 |
| Portland-Vancouver-Hillsboro, OR-WA | 1 | $2,346.50 | $2,346.50 |
| Pullman, WA | 1 | $2,079.10 | $2,079.10 |
| Republic, WA | 1 | $1,522.55 | $1,522.55 |
| South Bend, WA | 1 | $1,757.70 | $1,757.70 |
| Walla Walla, WA | 1 | $1,773.10 | $1,773.10 |
| Yakima, WA | 1 | $211.25 | $211.25 |
Market A metro area (as the Census Bureau defines it) or, outside metro areas, a town. Each links to every hospital price there.
Hospitals How many hospitals publish a cash price for this code here. Each hospital counts once, at its lowest outpatient cash price.
Lowest The lowest cash price among those hospitals.
Median The middle cash price: half of the hospitals charge less, half charge more. One price per hospital. More
What sigmoidoscopy is, what the price covers and why prices differ: Sigmoidoscopy explained.
Flexible sigmoidoscopy, diagnostic (lower colon only) in other states
- Alabama$1,150.60
- Alaska$1,620.84
- Arizona$2,618.00
- Arkansas$677.64
- California$1,829.60
- Colorado$756.44
- Connecticut$3,217.67
- Delaware$1,480.08
- District of Columbia$2,239.64, 1 hospital
- Florida$2,801.60
- Georgia$1,331.00
- Hawaii$1,259.30
- Idaho$1,082.00
- Illinois$1,065.00
- Indiana$2,076.98
- Iowa$1,755.40
- Kansas$876.00
- Kentucky$2,608.70
- Louisiana$504.78
- Maine$558.13, 4 hospitals
- Maryland$2,784.86, 1 hospital
- Massachusetts$1,850.58
- Michigan$2,399.00
- Minnesota$944.38
- Mississippi$759.79
- Missouri$1,246.20
- Montana$1,088.90
- Nebraska$1,455.24
- Nevada$1,011.00
- New Hampshire$603.74
- New Jersey$1,216.56
- New Mexico$965.10
- New York$1,994.00
- North Carolina$1,217.40
- North Dakota$1,103.25
- Ohio$2,563.60
- Oklahoma$1,014.60
- Oregon$1,069.17
- Pennsylvania$1,158.00
- Puerto Rico$1,850.00, 2 hospitals
- Rhode Island$2,331.60
- South Carolina$1,812.00
- South Dakota$1,144.80
- Tennessee$672.75
- Texas$924.13
- Utah$819.32, 2 hospitals
- Vermont$1,255.84
- Virginia$1,130.85
- West Virginia$859.59
- Wisconsin$819.51
- Wyoming$1,618.20
Median cash price across the state's hospitals.