TB blood test (IGRA) cost in Washington
In Washington, 33 hospitals publish a cash price for TB blood test measuring immune response (IGRA, gamma interferon): from $48.30 to $517.00, with a median of $205.68. The lowest price is at Providence St Mary Medical Center (Walla Walla). The highest price is 10.7× the lowest.
Outpatient cash prices, one line per hospital — its lowest listed price for code 86480. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 23, 2026.
Lowest$48.30Providence St Mary Medical Center
Median$205.68half pay less
Highest$517.00in Washington
Lowest saves$157.38vs the median
Hospitals in Washington, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| Providence St Mary Medical Center lowest Walla Walla · Walla Walla, WA HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON CDM | $48.30 | $69.00 | Apr 1, 2026 source file |
| Legacy Salmon Creek Medical Center Vancouver · Portland-Vancouver-Hillsboro, OR-WA CHG TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $70.70 | $108.77 | Apr 1, 2026 source file |
| Kadlec Regional Medical Center Richland · Kennewick-Richland, WA HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON CDM | $74.20 | $106.00 | Apr 1, 2026 source file |
| Providence Holy Family Hospital Spokane · Spokane-Spokane Valley, WA HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $109.20 | $156.00 | Apr 1, 2026 source file |
| Providence Centralia Hospital Centralia · Centralia, WA HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON LAB | $110.76 | $213.00 | Apr 1, 2026 source file |
| PeaceHealth United General Medical Center Sedro Woolley · Mount Vernon-Anacortes, WA TUBERCULOSIS TEST; GAMMA INTERFERON | $122.20 | $188.00 | — source file |
| Providence St Peter Hospital Olympia · Olympia-Lacey-Tumwater, WA HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON CDM | $122.72 | $236.00 | Apr 1, 2026 source file |
| Providence St Joseph Hospital Chewelah · Spokane-Spokane Valley, WA HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $138.60 | $198.00 | Apr 1, 2026 source file |
| Saint Clare Hospital Lakewood · Seattle-Tacoma-Bellevue, WA HC WHOLE BLOOD TB VIA QUANTIFERON | $167.77 | $582.04 | Feb 28, 2026 source file |
| PeaceHealth Peace Island Medical Center Friday Harbor · Friday Harbor, WA TUBERCULOSIS TEST; GAMMA INTERFERON | $172.25 | $265.00 | — source file |
| St Anthony Hospital Gig Harbor · Seattle-Tacoma-Bellevue, WA HC WHOLE BLOOD TB VIA QUANTIFERON | $177.03 | $582.04 | Feb 28, 2026 source file |
| Virginia Mason Medical Center Seattle · Seattle-Tacoma-Bellevue, WA TB TEST, CELL IMMUN MEASURE | $177.48 | $348.00 | — source file |
| Highline Medical Center Burien · Seattle-Tacoma-Bellevue, WA HC WHOLE BLOOD TB VIA QUANTIFERON | $177.73 | $582.04 | Feb 28, 2026 source file |
| St Francis Community Hospital Federal Way · Seattle-Tacoma-Bellevue, WA HC WHOLE BLOOD TB VIA QUANTIFERON | $182.66 | $582.04 | Feb 28, 2026 source file |
| Overlake Medical Center & Clinics Bellevue · Seattle-Tacoma-Bellevue, WA Hc Tb, Quantiferon Gold | $186.00 | $372.00 | Apr 1, 2026 source file |
| St Joseph Medical Center Tacoma · Seattle-Tacoma-Bellevue, WA HC WHOLE BLOOD TB VIA QUANTIFERON | $192.78 | $582.04 | Feb 28, 2026 source file |
| Enumclaw Regional Hospital Association Enumclaw · Seattle-Tacoma-Bellevue, WA HC WHOLE BLOOD TB VIA QUANTIFERON | $205.68 | $582.04 | Feb 28, 2026 source file |
| Jefferson Healthcare Port Townsend · Port Townsend, WA Tuberculosis test, gamma interferon | $207.20 | $259.00 | Aug 6, 2026 source file |
| St. Joseph Medical Center Bellingham · Bellingham, WA TUBERCULOSIS TEST; GAMMA INTERFERON | $214.50 | $330.00 | — source file |
| Confluence Health Hospital Wenatchee · Wenatchee-East Wenatchee, WA HC Quantiferon TB Gold | $236.70 | $263.00 | — source file |
| St. John Medical Center Longview · Longview-Kelso, WA TUBERCULOSIS TEST; GAMMA INTERFERON | $250.25 | $385.00 | — source file |
| Cascade Valley Hospital Arlington · Seattle-Tacoma-Bellevue, WA HC QUANTIFERON | $256.80 | $321.00 | — source file |
| Harrison Medical Center Silverdale · Bremerton-Silverdale-Port Orchard, WA HC WHOLE BLOOD TB VIA QUANTIFERON | $256.89 | $582.04 | Feb 28, 2026 source file |
| Skagit Valley Hospital Mount Vernon · Mount Vernon-Anacortes, WA HC QUANTIFERON | $268.80 | $336.00 | — source file |
| Kaiser Permanente Central Hospital Seattle · Seattle-Tacoma-Bellevue, WA TUBERCULOSIS TST CELL | $293.60 | $367.00 | Apr 1, 2026 source file |
| Providence Mount Carmel Hospital Colville · Spokane-Spokane Valley, WA HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON | $323.40 | $462.00 | Apr 1, 2026 source file |
| Swedish Edmonds Edmonds · Seattle-Tacoma-Bellevue, WA HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON LAB | $324.48 | $676.00 | Apr 1, 2026 source file |
| Swedish Issaquah Issaquah · Seattle-Tacoma-Bellevue, WA HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON CDM | $324.48 | $676.00 | Apr 1, 2026 source file |
| Swedish Medical Center / Cherry Hill Seattle · Seattle-Tacoma-Bellevue, WA HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON LAB | $324.48 | $676.00 | Apr 1, 2026 source file |
| Providence Regional Medical Center Everett Everett · Seattle-Tacoma-Bellevue, WA HC TB CELL MEDIATED ANTIGN RESPNSE GAMMA INTERFERON CDM | $351.52 | $676.00 | Apr 1, 2026 source file |
| PeaceHealth Southwest Medical Center Vancouver · Portland-Vancouver-Hillsboro, OR-WA TUBERCULOSIS TEST; GAMMA INTERFERON | $383.50 | $590.00 | — source file |
| Seattle Children's Hospital Seattle · Seattle-Tacoma-Bellevue, WA Quantiferon TB Test | $417.20 | $417.20 | — source file |
| Shriners Childrens - Spokane Spokane · Spokane-Spokane Valley, WA TB TEST CELL IMMUN MEASURE | $517.00 | $517.00 | — 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 | 15 | $167.77 | $205.68 |
| Spokane-Spokane Valley, WA | 4 | $109.20 | $231.00 |
| Mount Vernon-Anacortes, WA | 2 | $122.20 | $195.50 |
| Portland-Vancouver-Hillsboro, OR-WA | 2 | $70.70 | $227.10 |
| Bellingham, WA | 1 | $214.50 | $214.50 |
| Bremerton-Silverdale-Port Orchard, WA | 1 | $256.89 | $256.89 |
| Centralia, WA | 1 | $110.76 | $110.76 |
| Friday Harbor, WA | 1 | $172.25 | $172.25 |
| Kennewick-Richland, WA | 1 | $74.20 | $74.20 |
| Longview-Kelso, WA | 1 | $250.25 | $250.25 |
| Olympia-Lacey-Tumwater, WA | 1 | $122.72 | $122.72 |
| Port Townsend, WA | 1 | $207.20 | $207.20 |
| Walla Walla, WA | 1 | $48.30 | $48.30 |
| Wenatchee-East Wenatchee, WA | 1 | $236.70 | $236.70 |
What it is
This blood test, known as an interferon-gamma release assay (IGRA), such as QuantiFERON, checks whether the immune system reacts to tuberculosis proteins. It is used to screen for TB infection, often for work, school or immigration, and replaces the skin test for many people.
What the price covers
The price usually covers the lab test only. The blood draw is often billed separately, and a chest X-ray after a positive result has its own charge.
TB blood test measuring immune response (IGRA, gamma interferon) in other states
- Alabama$269.68
- Alaska$92.76
- Arizona$64.54
- Arkansas$80.95
- California$96.72
- Colorado$110.23
- Connecticut$197.75
- Delaware$248.05
- Florida$74.10
- Georgia$175.00
- Hawaii$277.20
- Idaho$276.00
- Illinois$202.30
- Indiana$205.20
- Iowa$164.45
- Kansas$245.05
- Kentucky$266.40
- Louisiana$67.90
- Maine$106.63
- Maryland$96.06
- Massachusetts$193.87
- Michigan$129.00
- Minnesota$162.58
- Mississippi$152.40
- Missouri$190.45
- Montana$91.20
- Nebraska$184.67
- Nevada$61.70
- New Hampshire$173.74
- New Jersey$71.28
- New Mexico$191.20
- New York$152.40
- North Carolina$124.78
- North Dakota$112.50
- Ohio$111.20
- Oklahoma$166.40
- Oregon$138.45
- Pennsylvania$286.65
- Rhode Island$496.00
- South Carolina$219.00
- South Dakota$174.80
- Tennessee$108.45
- Texas$139.44
- Utah$207.02
- Vermont$224.00
- Virginia$144.90
- West Virginia$196.75
- Wisconsin$252.62
- Wyoming$140.62
Median cash price across the state's hospitals.