GGT test cost in Spokane, WA — inpatient
In Spokane-Spokane Valley, WA, 5 hospitals list a cash price for gamma-glutamyl transferase (GGT) blood test as an inpatient: from $13.86 to $156.80, with a median of $49.00. The lowest listed price is at Providence St Luke's Rehabilitation Medical Center — $35.14 less than the median here. Across Washington, the median is $52.17 at 58 hospitals.
Cash prices at 5 facilities across 3 cities for code 82977, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Spokane-Spokane Valley, WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Providence St Luke's Rehabilitation Medical Center lowest Spokane, WA HC GAMMA GT TOTAL File of Apr 1, 2026 · source file | $13.86 | $19.80 | — | 30% |
| Providence Mount Carmel Hospital Colville, WA · (509) 684-2561 HC ASSAY OF GGT+1 more line at this price File of Apr 1, 2026 · source file | $17.50 | $25.00 | — | 30% |
| Prov Sacred Hrt Medical Center & Childs Hospital Spokane, WA · (509) 474-3131 HC GAMMA GT TOTAL+1 more line at this price File of Apr 1, 2026 · source file | $49.00 | $70.00 | — | 30% |
| Providence St Joseph Hospital Chewelah, WA · (509) 935-8211 HC ASSAY OF GGT+1 more line at this price File of Apr 1, 2026 · source file | $82.60 | $118.00 | — | 30% |
| Providence Holy Family Hospital Spokane, WA · (509) 482-0111 HC GAMMA GT TOTAL+2 more lines at this price File of Apr 1, 2026 · source file | $156.80 | $224.00 | — | 30% |
Inpatient: lowest $13.86, median $49.00, highest $156.80 — a 11.3× difference within the same market.
As an outpatient, the same code is billed by 6 facilities here, median $52.25 — that is the price to compare if you are not being admitted.
What it is
A GGT test measures a liver enzyme that rises with bile duct problems and heavy alcohol use. It helps tell whether a high alkaline phosphatase comes from the liver or bone.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.