Free T4 test cost in Montana
In Montana, 9 hospitals publish a cash price for Free T4 (free thyroxine) thyroid blood test: from $10.02 to $127.20, with a median of $51.20. The lowest price is at Great Falls Clinic Hospital (Great Falls). The highest price is 12.7× the lowest.
Outpatient cash prices, one line per hospital — its lowest listed price for code 84439. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 23, 2026.
Hospitals in Montana, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| Great Falls Clinic Hospital lowest Great Falls · Great Falls, MT ASSAY OF FREE THYROXINE | $10.02 | $10.02 | — source file |
| Montana Childrens Home & Hospital Helena · Helena, MT Thyroxine (thyroid chemical), free | $17.33 | $23.10 | Mar 10, 2026 source file |
| St. Peter's Health Helena · Helena, MT LABORATORY - CHEMISTRY | $29.55 | $34.76 | — source file |
| Providence Health & Services - Montana Missoula · Missoula, MT HC ASSAY OF FREE THYROXINE CDM | $40.80 | $51.00 | Apr 1, 2026 source file |
| Deaconess Regional Medical Center Bozeman · Bozeman, MT HC ASSAY OF FREE THYROXINE - T4 FREE | $51.20 | $64.00 | Nov 19, 2024 source file |
| Big Sky Medical Center Big Sky · Bozeman, MT HC ASSAY OF FREE THYROXINE - T4 FREE | $61.60 | $77.00 | Nov 19, 2024 source file |
| Community Hospital of Anaconda Anaconda · Anaconda, MT Thyroxine (thyroid chemical), free | $79.65 | $106.20 | Jul 20, 2026 source file |
| Barrett Hospital Development Corporation S Dillon · S Dillon, MT Thyroxine (thyroid chemical), free | $86.45 | $91.00 | Jun 12, 2026 source file |
| Providence St Joseph Medical Center Polson · Polson, MT HC ASSAY OF FREE THYROXINE CDM | $127.20 | $159.00 | Apr 1, 2026 source file |
By metro area
Each metro page compares every listing, including prices for both sides of the body.
| Metro area | Hospitals | Lowest | Median |
|---|---|---|---|
| Bozeman, MT | 2 | $51.20 | $56.40 |
| Helena, MT | 2 | $17.33 | $23.44 |
| Anaconda, MT | 1 | $79.65 | $79.65 |
| Great Falls, MT | 1 | $10.02 | $10.02 |
| Missoula, MT | 1 | $40.80 | $40.80 |
| Polson, MT | 1 | $127.20 | $127.20 |
| S Dillon, MT | 1 | $86.45 | $86.45 |
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.
Free T4 (free thyroxine) thyroid blood test in other states
- Alabama$74.96
- Alaska$68.40
- Arizona$17.45
- Arkansas$48.10
- California$68.12
- Colorado$49.00
- Connecticut$55.55
- Delaware$157.92
- Florida$70.60
- Georgia$137.67
- Hawaii$44.40
- Idaho$40.00
- Illinois$82.08
- Indiana$72.25
- Iowa$61.18
- Kansas$109.75
- Kentucky$113.03
- Louisiana$37.66
- Maine$55.38
- Maryland$44.06
- Massachusetts$43.62
- Michigan$37.00
- Minnesota$65.27
- Mississippi$24.48
- Missouri$87.90
- Nebraska$63.84
- Nevada$65.41
- New Hampshire$78.53
- New Jersey$10.37
- New Mexico$125.20
- New York$48.47
- North Carolina$78.40
- North Dakota$32.13
- Ohio$40.30
- Oklahoma$61.33
- Oregon$44.25
- Pennsylvania$63.90
- Puerto Rico$18.00
- Rhode Island$72.00
- South Carolina$105.00
- South Dakota$64.80
- Tennessee$27.50
- Texas$39.51
- Utah$84.43
- Vermont$114.00
- Virginia$57.00
- Washington$63.84
- West Virginia$45.75
- Wisconsin$70.85
- Wyoming$18.62
Median cash price across the state's hospitals.