H. pylori stool test cost in Washington
In Washington, 57 hospitals publish a cash price for H. pylori stool antigen test: from $26.44 to $342.55, with a median of $144.87. The lowest price is at Legacy Salmon Creek Medical Center (Vancouver). The highest price is 13.0× the lowest.
- The median here, $144.87, is 54% above the US median of $94.17.
- That is 10.1× Medicare's 2026 national rate for the same service ($14.38).
- Washington ranks 42nd of 51 states by median, cheapest first.
- 3 of 57 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 87338. Prices for both sides of the body and inpatient prices are not mixed in. Collected Nov 11, 2026. See them on a map
Lowest$26.44Legacy Salmon Creek Medical Center
Median$144.87half of hospitals charge less
Highest$342.55in Washington
Lowest saves$118.43vs 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 HC HELICOBACTER PYLORI STOOL ANTIGEN | $26.44 | $40.67 | Apr 1, 2026 source file |
| Virginia Mason Medical Center Seattle · Seattle-Tacoma-Bellevue, WA HPYLORI, STOOL, IA-TECH | $41.82 | $82.00 | Jan 1, 2026 source file |
| Confluence Health Hospital Wenatchee · Wenatchee-East Wenatchee, WA HC H Pylori Ag, Stool | $61.20 | $68.00 | Aug 10, 2026 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 |
| Lourdes Health Pasco · Kennewick-Richland, WA HPYLORI STOOL IA | $63.30 | $158.24 | Jul 10, 2026 source file |
| Forks Community Hospital Forks · Port Townsend, WA Detection test by immunoassay technique for Helicobacter pylori (GI tract bacteria) in stool | $71.20 | $89.00 | Oct 27, 2026 source file |
| Olympic Medical Center Port Angeles · Port Angeles, WA Test by immunoassay for Helicobacter pylori in stool | $71.20 | $89.00 | Jun 24, 2026 source file |
| Snoqualmie Valley Hospital Snoqualmie · Seattle-Tacoma-Bellevue, WA Facility Fee HC H PYLORI ANTIGEN STOOL-LC | $73.65 | $126.98 | Apr 14, 2026 source file |
| Swedish Edmonds Edmonds · Seattle-Tacoma-Bellevue, WA HC IAAD IA HPYLORI STOOL CDM | $76.32 | $159.00 | Apr 1, 2026 source file |
| Swedish Issaquah Issaquah · Seattle-Tacoma-Bellevue, WA HC IAAD IA HPYLORI STOOL CDM | $76.32 | $159.00 | Apr 1, 2026 source file |
| Swedish Medical Center Seattle · 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 LAB | $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 |
| Valley Medical Center Renton · Seattle-Tacoma-Bellevue, WA Iaad Ia Hpylori Stool | $98.00 | $140.00 | Mar 12, 2026 source file |
| Whitman Hospital and Medical Center Colfax · Pullman, WA Detection test by immunoassay technique for Helicobacter pylori (GI tract bacteria) in stool | $103.20 | $129.00 | Jun 29, 2026 source file |
| Prov Sacred Hrt Medical Center & Childs Hospital Spokane · Spokane-Spokane Valley, WA HC IAAD IA HPYLORI STOOL CDM | $103.60 | $148.00 | Apr 1, 2026 source file |
| Samaritan Hospital Moses Lake · Moses Lake, WA Test by immunoassay for Helicobacter pylori in stool | $104.00 | $104.00 | Jan 4, 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 |
| Kittitas County Public Hospital Dist 1 Ellensburg · Ellensburg, WA Detection test by immunoassay technique for Helicobacter pylori (GI tract bacteria) in stool | $124.10 | $146.00 | Oct 7, 2026 source file |
| Summit Pacific Medical Center Elma · Aberdeen, WA Detection test by immunoassay technique for Helicobacter pylori (GI tract bacteria) in stool | $126.36 | $234.00 | Aug 31, 2026 source file |
| Cascade Medical Center Leavenworth · Wenatchee-East Wenatchee, WA Hpylori stool ag ia | $132.00 | $165.00 | May 15, 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 | Mar 20, 2026 source file |
| Saint Clare Hospital Lakewood · Seattle-Tacoma-Bellevue, WA HC HELICOBACTER PYLORI AG STOOL | $137.39 | $476.37 | Sep 30, 2026 source file |
| Ocean Beach Hospital Ilwaco · Ilwaco, WA HC IAAD IA HPYLORI STOOL CDM | $138.75 | $185.00 | Oct 23, 2026 source file |
| Providence Holy Family Hospital Spokane · Spokane-Spokane Valley, WA HC IAAD IA HPYLORI STOOL CDM | $139.30 | $199.00 | Apr 1, 2026 source file |
| Mason General Hospital & Family of Clinics Shelton · Shelton, WA H pylori Stool Ag, EIA LC | $142.50 | $190.00 | Mar 10, 2026 source file |
| Prosser Memorial Health Hospital Prosser · Kennewick-Richland, WA HC H PYLORI ANTIGEN STOOL | $143.00 | $260.00 | Jan 1, 2025 source file |
| St Anthony Hospital Gig Harbor · Seattle-Tacoma-Bellevue, WA HC HELICOBACTER PYLORI AG STOOL | $144.87 | $476.37 | Sep 30, 2026 source file |
| Highline Medical Center Burien · Seattle-Tacoma-Bellevue, WA HC HELICOBACTER PYLORI AG STOOL | $145.01 | $476.37 | Sep 30, 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 | Mar 21, 2026 source file |
| St Francis Community Hospital Federal Way · Seattle-Tacoma-Bellevue, WA HC HELICOBACTER PYLORI AG STOOL | $146.49 | $476.37 | Sep 30, 2026 source file |
| Willapa Harbor Hospital South Bend · South Bend, WA DETECTION TEST BY IMMUNOASSAY TECHNIQUE FOR HELICOBACTER PYLORI (GI TRACT BACTERIA) IN STOOL | $146.71 | $209.58 | Feb 24, 2026 source file |
| Klickitat Valley Hospital Goldendale · Goldendale, WA H PYLORI STOOL AG EIA | $148.00 | $185.00 | Dec 2, 2024 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 | Mar 26, 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 | Mar 20, 2026 source file |
| Lincoln Hospital Davenport · Davenport, WA Detection test by immunoassay technique for Helicobacter pylori (GI tract bacteria) in stool | $167.36 | $185.95 | Sep 14, 2026 source file |
| Cascade Valley Hospital Arlington · Seattle-Tacoma-Bellevue, WA HC HELICOBACTER PLY.STOOL | $171.20 | $214.00 | Mar 26, 2026 source file |
| St Elizabeth Hospital Enumclaw · Seattle-Tacoma-Bellevue, WA HC HELICOBACTER PYLORI AG STOOL | $174.93 | $476.37 | Sep 30, 2026 source file |
| Quincy Valley Medical Center Quincy · Moses Lake, WA Detection test by immunoassay technique for Helicobacter pylori (GI tract bacteria) in stool | $181.01 | $181.01 | May 27, 2026 source file |
| PeaceHealth St Joseph Medical Center Bellingham · Bellingham, WA DETECTION TEST BY IMMUNOASSAY TECHNIQUE FOR HELICOBACTER PYLORI (GI TRACT BACTERIA) IN STOOL | $184.60 | $284.00 | Mar 21, 2026 source file |
| Lake Chelan Community Hospital Chelan · Wenatchee-East Wenatchee, WA Detection test by immunoassay technique for Helicobacter pylori (GI tract bacteria) in stool | $188.21 | $188.21 | Sep 1, 2026 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 |
| St. Michael 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 |
| Pullman Regional Hospital Pullman · Pullman, WA Detection test by immunoassay technique for Helicobacter pylori (GI tract bacteria) in stool | $230.35 | $271.00 | Jun 9, 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 |
| Othello Community Hospital Othello · Othello, WA Detection test by immunoassay technique for Helicobacter pylori (GI tract bacteria) in stool | $234.56 | $312.75 | Jul 1, 2026 source file |
| PeaceHealth 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 | Mar 21, 2026 source file |
| Ferry County Memorial Hospital Republic · Republic, WA IAAD IA H.PYLORI STOOL | $252.45 | $297.00 | Sep 14, 2026 source file |
| Arbor Health Morton Hospital Morton · Centralia, WA Detection test by immunoassay technique for Helicobacter pylori (GI tract bacteria) in stool | $288.92 | $466.00 | May 18, 2026 source file |
| Astria Sunnyside Hospital Sunnyside · Kennewick-Richland, WA H. pylori Stool Ag, EIA LC | $294.69 | $517.00 | Apr 1, 2026 source file |
| Astria Toppenish Hospital Toppenish · Yakima, WA H. pylori Stool Ag, EIA LC | $342.55 | $527.00 | Apr 1, 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.
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 | 17 | $41.82 | $98.00 |
| Kennewick-Richland, WA | 4 | $63.30 | $174.05 |
| Spokane-Spokane Valley, WA | 4 | $103.60 | $183.05 |
| Wenatchee-East Wenatchee, WA | 3 | $61.20 | $132.00 |
| Centralia, WA | 2 | $198.12 | $243.52 |
| Moses Lake, WA | 2 | $104.00 | $142.50 |
| Mount Vernon-Anacortes, WA | 2 | $145.60 | $149.00 |
| Port Townsend, WA | 2 | $71.20 | $96.40 |
| Portland-Vancouver-Hillsboro, OR-WA | 2 | $26.44 | $80.50 |
| Pullman, WA | 2 | $103.20 | $166.78 |
| Aberdeen, WA | 1 | $126.36 | $126.36 |
| Bellingham, WA | 1 | $184.60 | $184.60 |
| Bremerton-Silverdale-Port Orchard, WA | 1 | $202.16 | $202.16 |
| Davenport, WA | 1 | $167.36 | $167.36 |
| Ellensburg, WA | 1 | $124.10 | $124.10 |
| Friday Harbor, WA | 1 | $164.45 | $164.45 |
| Goldendale, WA | 1 | $148.00 | $148.00 |
| Ilwaco, WA | 1 | $138.75 | $138.75 |
| Longview-Kelso, WA | 1 | $235.30 | $235.30 |
| Olympia-Lacey-Tumwater, WA | 1 | $198.12 | $198.12 |
| Othello, WA | 1 | $234.56 | $234.56 |
| Port Angeles, WA | 1 | $71.20 | $71.20 |
| Republic, WA | 1 | $252.45 | $252.45 |
| South Bend, WA | 1 | $146.71 | $146.71 |
| Shelton, WA | 1 | $142.50 | $142.50 |
| Walla Walla, WA | 1 | $62.30 | $62.30 |
| Yakima, WA | 1 | $342.55 | $342.55 |
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 H. pylori stool test is, what the price covers and why prices differ: H. pylori stool test explained.
H. pylori stool antigen test in other states
- Alabama$68.85
- Alaska$183.95
- Arizona$43.25
- Arkansas$53.66
- California$79.58
- Colorado$157.00
- Connecticut$79.20
- Delaware$169.48
- District of Columbia$140.62, 3 hospitals
- Florida$47.38
- Georgia$125.97
- Hawaii$101.25
- Idaho$99.48
- Illinois$116.20
- Indiana$131.00
- Iowa$113.72
- Kansas$111.35
- Kentucky$146.30
- Louisiana$60.91
- Maine$106.81
- Maryland$86.23
- Massachusetts$103.75
- Michigan$63.33
- Minnesota$111.71
- Mississippi$71.10
- Missouri$118.36
- Montana$85.48
- Nebraska$165.00
- Nevada$76.80
- New Hampshire$113.14
- New Jersey$15.82
- New Mexico$79.75
- New York$53.53
- North Carolina$111.50
- North Dakota$99.90
- Ohio$69.89
- Oklahoma$112.85
- Oregon$71.80
- Pennsylvania$96.38
- Puerto Rico$92.70
- Rhode Island$100.00
- South Carolina$204.90
- South Dakota$188.80
- Tennessee$61.15
- Texas$80.43
- Utah$385.16
- Vermont$214.00
- Virginia$107.80
- West Virginia$59.25
- Wisconsin$129.35
- Wyoming$94.08
Median cash price across the state's hospitals.