H. pylori stool test cost in Washington
In Washington, 31 hospitals publish a cash price for H. pylori stool antigen test: from $10.17 to $235.30, with a median of $143.75. The lowest price is at Legacy Salmon Creek Medical Center (Vancouver). The highest price is 23.1× the lowest.
Outpatient cash prices, one line per hospital — its lowest listed price for code 87338. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 23, 2026.
Lowest$10.17Legacy Salmon Creek Medical Center
Median$143.75half pay less
Highest$235.30in Washington
Lowest saves$133.58vs the median
Hospitals in Washington, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| Legacy Salmon Creek Medical Center lowest Vancouver · Portland-Vancouver-Hillsboro, OR-WA CHG IAAD IA HPYLORI STOOL | $10.17 | $15.65 | Apr 1, 2026 source file |
| Virginia Mason Medical Center Seattle · Seattle-Tacoma-Bellevue, WA HPYLORI, STOOL, IA-TECH | $41.82 | $82.00 | — source file |
| Confluence Health Hospital Wenatchee · Wenatchee-East Wenatchee, WA HC H Pylori Ag, Stool | $61.20 | $68.00 | — source file |
| Providence St Mary Medical Center Walla Walla · Walla Walla, WA HC IAAD IA HPYLORI STOOL CDM | $62.30 | $89.00 | Apr 1, 2026 source file |
| Providence Holy Family Hospital Spokane · Spokane-Spokane Valley, WA HC IAAD IA HPYLORI STOOL CDM | $73.08 | $104.40 | Apr 1, 2026 source file |
| Swedish Edmonds Edmonds · Seattle-Tacoma-Bellevue, WA HC IAAD IA HPYLORI STOOL LAB | $76.32 | $159.00 | Apr 1, 2026 source file |
| Swedish Issaquah Issaquah · Seattle-Tacoma-Bellevue, WA HC IAAD IA HPYLORI STOOL LAB | $76.32 | $159.00 | Apr 1, 2026 source file |
| Swedish Medical Center / Cherry Hill Seattle · Seattle-Tacoma-Bellevue, WA HC IAAD IA HPYLORI STOOL CDM | $76.32 | $159.00 | Apr 1, 2026 source file |
| Providence Regional Medical Center Everett Everett · Seattle-Tacoma-Bellevue, WA HC IAAD IA HPYLORI STOOL CDM | $82.68 | $159.00 | Apr 1, 2026 source file |
| Kaiser Permanente Central Hospital Seattle · Seattle-Tacoma-Bellevue, WA H. PYLORI ENZYME IMMUNOASSAY | $97.60 | $122.00 | Apr 1, 2026 source file |
| Jefferson Healthcare Port Townsend · Port Townsend, WA Detection test by immunoassay technique for Helicobacter pylori (GI tract bacteria) in stool | $121.60 | $152.00 | Aug 6, 2026 source file |
| Saint Clare Hospital Lakewood · Seattle-Tacoma-Bellevue, WA HC HELICOBACTER PYLORI AG STOOL | $132.03 | $458.05 | Feb 28, 2026 source file |
| PeaceHealth Southwest Medical Center Vancouver · Portland-Vancouver-Hillsboro, OR-WA DETECTION TEST BY IMMUNOASSAY TECHNIQUE FOR HELICOBACTER PYLORI (GI TRACT BACTERIA) IN STOOL | $134.55 | $207.00 | — source file |
| St Anthony Hospital Gig Harbor · Seattle-Tacoma-Bellevue, WA HC HELICOBACTER PYLORI AG STOOL | $139.32 | $458.05 | Feb 28, 2026 source file |
| Highline Medical Center Burien · Seattle-Tacoma-Bellevue, WA HC HELICOBACTER PYLORI AG STOOL | $139.87 | $458.05 | Feb 28, 2026 source file |
| St Francis Community Hospital Federal Way · Seattle-Tacoma-Bellevue, WA HC HELICOBACTER PYLORI AG STOOL | $143.75 | $458.05 | Feb 28, 2026 source file |
| PeaceHealth United General Medical Center Sedro Woolley · Mount Vernon-Anacortes, WA DETECTION TEST BY IMMUNOASSAY TECHNIQUE FOR HELICOBACTER PYLORI (GI TRACT BACTERIA) IN STOOL | $145.60 | $224.00 | — source file |
| St Joseph Medical Center Tacoma · Seattle-Tacoma-Bellevue, WA HC HELICOBACTER PYLORI AG STOOL | $151.71 | $458.05 | Feb 28, 2026 source file |
| Skagit Valley Hospital Mount Vernon · Mount Vernon-Anacortes, WA HC HELICOBACTER PLY.STOOL | $152.40 | $190.50 | — source file |
| Enumclaw Regional Hospital Association Enumclaw · Seattle-Tacoma-Bellevue, WA HC HELICOBACTER PYLORI AG STOOL | $161.86 | $458.05 | Feb 28, 2026 source file |
| PeaceHealth Peace Island Medical Center Friday Harbor · Friday Harbor, WA DETECTION TEST BY IMMUNOASSAY TECHNIQUE FOR HELICOBACTER PYLORI (GI TRACT BACTERIA) IN STOOL | $164.45 | $253.00 | — source file |
| Cascade Valley Hospital Arlington · Seattle-Tacoma-Bellevue, WA HC HELICOBACTER PLY.STOOL | $171.20 | $214.00 | — source file |
| St. Joseph Medical Center Bellingham · Bellingham, WA DETECTION TEST BY IMMUNOASSAY TECHNIQUE FOR HELICOBACTER PYLORI (GI TRACT BACTERIA) IN STOOL | $184.60 | $284.00 | — source file |
| Overlake Medical Center & Clinics Bellevue · Seattle-Tacoma-Bellevue, WA Hc H Pylori Antigen Stool | $194.50 | $389.00 | Apr 1, 2026 source file |
| Providence Centralia Hospital Centralia · Centralia, WA HC IAAD IA HPYLORI STOOL CDM | $198.12 | $381.00 | Apr 1, 2026 source file |
| Providence St Peter Hospital Olympia · Olympia-Lacey-Tumwater, WA HC IAAD IA HPYLORI STOOL CDM | $198.12 | $381.00 | Apr 1, 2026 source file |
| Harrison Medical Center Silverdale · Bremerton-Silverdale-Port Orchard, WA HC HELICOBACTER PYLORI AG STOOL | $202.16 | $458.05 | Feb 28, 2026 source file |
| Kadlec Regional Medical Center Richland · Kennewick-Richland, WA HC IAAD IA HPYLORI STOOL CDM | $205.10 | $293.00 | Apr 1, 2026 source file |
| Providence Mount Carmel Hospital Colville · Spokane-Spokane Valley, WA HC IAAD IA HPYLORI STOOL CDM | $226.80 | $324.00 | Apr 1, 2026 source file |
| Providence St Joseph Hospital Chewelah · Spokane-Spokane Valley, WA HC IAAD IA HPYLORI STOOL CDM | $231.70 | $331.00 | Apr 1, 2026 source file |
| St. John Medical Center Longview · Longview-Kelso, WA DETECTION TEST BY IMMUNOASSAY TECHNIQUE FOR HELICOBACTER PYLORI (GI TRACT BACTERIA) IN STOOL | $235.30 | $362.00 | — 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 | 14 | $41.82 | $135.68 |
| Spokane-Spokane Valley, WA | 3 | $73.08 | $226.80 |
| Mount Vernon-Anacortes, WA | 2 | $145.60 | $149.00 |
| Portland-Vancouver-Hillsboro, OR-WA | 2 | $10.17 | $72.36 |
| Bellingham, WA | 1 | $184.60 | $184.60 |
| Bremerton-Silverdale-Port Orchard, WA | 1 | $202.16 | $202.16 |
| Centralia, WA | 1 | $198.12 | $198.12 |
| Friday Harbor, WA | 1 | $164.45 | $164.45 |
| Kennewick-Richland, WA | 1 | $205.10 | $205.10 |
| Longview-Kelso, WA | 1 | $235.30 | $235.30 |
| Olympia-Lacey-Tumwater, WA | 1 | $198.12 | $198.12 |
| Port Townsend, WA | 1 | $121.60 | $121.60 |
| Walla Walla, WA | 1 | $62.30 | $62.30 |
| Wenatchee-East Wenatchee, WA | 1 | $61.20 | $61.20 |
What it is
This stool test finds H. pylori, the stomach bacteria behind most ulcers. It shows an active infection and is used both to diagnose it and to confirm a cure.
What the price covers
The price usually covers running the stool test; the collection kit is often included.
H. pylori stool antigen test in other states
- Alabama$142.00
- Alaska$172.38
- Arizona$20.81
- Arkansas$64.48
- California$84.00
- Colorado$74.63
- Connecticut$78.60
- Delaware$169.48
- Florida$43.55
- Georgia$172.00
- Hawaii$85.80
- Idaho$64.00
- Illinois$67.50
- Indiana$134.70
- Iowa$64.20
- Kansas$131.95
- Kentucky$180.59
- Louisiana$38.56
- Maine$106.81
- Maryland$88.12
- Massachusetts$61.30
- Michigan$72.63
- Minnesota$92.23
- Mississippi$117.12
- Missouri$118.30
- Montana$76.80
- Nebraska$95.34
- Nevada$23.36
- New Hampshire$96.61
- New Jersey$16.54
- New Mexico$49.20
- New York$54.34
- North Carolina$131.50
- North Dakota$103.36
- Ohio$66.40
- Oklahoma$112.85
- Oregon$55.99
- Pennsylvania$87.75
- Rhode Island$100.00
- South Carolina$215.80
- South Dakota$186.40
- Tennessee$44.08
- Texas$60.00
- Utah$65.31
- Vermont$183.82
- Virginia$52.70
- West Virginia$32.50
- Wisconsin$125.00
- Wyoming$31.50
Median cash price across the state's hospitals.