Free T4 test cost in Kalispell, MT — inpatient
In Kalispell, MT, 2 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test as an inpatient: from $16.25 to $22.26, with a median of $19.26. The lowest listed price is at Logan Health Medical Center — $3.01 less than the median here. Across Montana, the median is $71.66 at 23 hospitals.
Cash prices at 2 facilities across 2 cities for code 84439, as an inpatient (admitted to hospital) . Collected Sep 29, 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 Kalispell, MT.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Logan Health Medical Center lowest Kalispell, MT · (406) 752-5111 ASSAY OF FREE THYROXINE | $16.25 | $25.00 | — | 35% | Apr 1, 2026 source file |
| Logan Health - Whitefish Whitefish, MT · (406) 863-3550 REF-T4, FREE, DIRECT DIALYSIS | $22.26 | $34.25 | — | 35% | Apr 1, 2026 source file |
| Logan Health Medical Center Kalispell, MT · (406) 752-5111 REF-T4, FREE, DIRECT DIALYSIS | $24.54 | $37.75 | — | 35% | Apr 1, 2026 source file |
| Logan Health Medical Center Kalispell, MT · (406) 752-5111 CHEM-FREE T4 | $67.44 | $103.75 | — | 35% | Apr 1, 2026 source file |
Inpatient: lowest $16.25, median $19.26, highest $22.26 — a 1.4× difference within the same market.
As an outpatient, the same code is billed by 2 facilities here, median $19.26 — 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.