Total T4 test cost in Spokane, WA
In Spokane-Spokane Valley, WA, 6 hospitals list a cash price for total thyroxine (T4) blood test: from $37.80 to $114.10, with a median of $71.85. The lowest listed price is at Providence St Luke's Rehabilitation Medical Center — $34.05 less than the median here. Across Washington, the median is $55.20 at 58 hospitals.
Cash prices at 6 facilities across 3 cities for code 84436, as an outpatient — the setting a self-pay patient normally buys. 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 ASSAY OF THYROXINE TOTAL LAB+1 more line at this price File of Apr 1, 2026 · source file | $37.80 | $54.00 | — | 30% |
| Prov Sacred Hrt Medical Center & Childs Hospital Spokane, WA · (509) 474-3131 HC THYROXINE T4+2 more lines at this price File of Apr 1, 2026 · source file | $39.90 | $57.00 | — | 30% |
| Prov Sacred Hrt Medical Center & Childs Hospital Spokane, WA · (509) 474-3131 HC ASSAY OF THYROXINE TOTAL LAB+2 more lines at this price File of Apr 1, 2026 · source file | $51.10 | $73.00 | — | 30% |
| Shriners Childrens - Spokane Spokane, WA · (509) 623-0422 ASSAY OF TOTAL THYROXINE source file | $59.70 | $59.70 | $6.87–$21.37 | — |
| Providence St Joseph Hospital Chewelah, WA · (509) 935-8211 HC THYROXINE TOTAL+2 more lines at this price File of Apr 1, 2026 · source file | $84.00 | $120.00 | — | 30% |
| Providence Mount Carmel Hospital Colville, WA · (509) 684-2561 HC THYROXINE TOTAL+2 more lines at this price File of Apr 1, 2026 · source file | $100.10 | $143.00 | — | 30% |
| Providence Holy Family Hospital Spokane, WA · (509) 482-0111 HC THYROXINE T4+2 more lines at this price File of Apr 1, 2026 · source file | $114.10 | $163.00 | — | 30% |
Outpatient: lowest $37.80, median $71.85, highest $114.10 — a 3.0× difference within the same market.
As an inpatient, the same code is billed by 5 facilities here, median $84.00. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is not below the highest rate a health plan has negotiated. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
A total T4 test measures all the thyroxine hormone in the blood, both bound and free. Most doctors now order free T4 (84439) instead, which is less affected by pregnancy and medicines.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.