Free T4 test cost in Spokane, WA — inpatient
In Spokane-Spokane Valley, WA, 3 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test as an inpatient: from $78.40 to $100.10, with a median of $91.70. The lowest listed price is at Providence Health And Services - Washington — $13.30 less than the median here. Across Washington, the median is $63.84 at 33 hospitals.
Cash prices at 3 facilities across 3 cities for code 84439, 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 | File date |
|---|---|---|---|---|---|
| Providence Health And Services - Washington lowest Colville, WA HC ASSAY OF FREE THYROXINE CDM | $78.40 | $112.00 | — | 30% | Apr 1, 2026 source file |
| Providence Health And Services - Washington lowest Colville, WA HC ASSAY OF FREE THYROXINE LAB | $78.40 | $112.00 | — | 30% | Apr 1, 2026 source file |
| Providence Health And Services - Washington lowest Colville, WA HC THYROXINE FREE | $78.40 | $112.00 | — | 30% | Apr 1, 2026 source file |
| Providence Health And Services - Washington Chewelah, WA HC THYROXINE FREE | $91.70 | $131.00 | — | 30% | Apr 1, 2026 source file |
| Providence Health And Services - Washington Chewelah, WA HC ASSAY OF FREE THYROXINE CDM | $91.70 | $131.00 | — | 30% | Apr 1, 2026 source file |
| Providence Health And Services - Washington Chewelah, WA HC ASSAY OF FREE THYROXINE LAB | $91.70 | $131.00 | — | 30% | Apr 1, 2026 source file |
| Providence Health And Services - Washington Spokane, WA HC ASSAY OF FREE THYROXINE LAB | $100.10 | $143.00 | — | 30% | Apr 1, 2026 source file |
| Providence Health And Services - Washington Spokane, WA HC ASSAY OF FREE THYROXINE CDM | $100.10 | $143.00 | — | 30% | Apr 1, 2026 source file |
| Providence Health And Services - Washington Spokane, WA HC THYROXINE FREE | $100.10 | $143.00 | — | 30% | Apr 1, 2026 source file |
| Providence Health And Services - Washington Spokane, WA HC ASSAY OF FREE THYROXINE CDM | $108.36 | $154.80 | — | 30% | Apr 1, 2026 source file |
| Providence Health And Services - Washington Spokane, WA HC ASSAY OF FREE THYROXINE LAB | $108.36 | $154.80 | — | 30% | Apr 1, 2026 source file |
| Providence Health And Services - Washington Spokane, WA HC THYROXINE FREE | $112.70 | $161.00 | — | 30% | Apr 1, 2026 source file |
| Providence Health And Services - Washington Spokane, WA HC ASSAY OF FREE THYROXINE LAB | $112.70 | $161.00 | — | 30% | Apr 1, 2026 source file |
| Providence Health And Services - Washington Spokane, WA HC ASSAY OF FREE THYROXINE CDM | $112.70 | $161.00 | — | 30% | Apr 1, 2026 source file |
Inpatient: lowest $78.40, median $91.70, highest $100.10 — a 1.3× difference within the same market.
As an outpatient, the same code is billed by 4 facilities here, median $78.35 — that is the price to compare if you are not being admitted.
What it is
A free T4 test measures thyroxine that is not bound to proteins, the active form of the main thyroid hormone. It is usually ordered with or after a TSH test to check for an underactive or overactive thyroid and to adjust thyroid medicine.
What the price covers
The price usually covers the free T4 test only. The blood draw and the TSH test (84443) are billed separately.