Total T4 test cost in Idaho
In Idaho, 30 hospitals publish a cash price for total thyroxine (T4) blood test: from $13.00 to $157.76, with a median of $35.25. The lowest price is at Mountain View Hospital (Idaho Falls). The highest price is 12.1× the lowest.
Outpatient cash prices, one line per hospital — its lowest listed price for code 84436. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 29, 2026. See them on a map
Lowest$13.00Mountain View Hospital
Median$35.25half of hospitals charge less
Highest$157.76in Idaho
Lowest saves$22.25vs the median
Hospitals in Idaho, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| Mountain View Hospital lowest Idaho Falls · Idaho Falls, ID THYROXINE (THYROID CHEMICAL); TOTAL | $13.00 | $13.00 | Mar 16, 2026 source file |
| Bonner General Hospital Sandpoint · Sandpoint, ID Thyroxine (thyroid chemical), total | $15.68 | $19.60 | Aug 1, 2026 source file |
| Treasure Valley Hospital Boise · Boise City, ID Total T4 Level | $16.70 | $195.25 | Sep 2, 2026 source file |
| Saint Alphonsus Medical Center - Nampa Nampa · Boise City, ID HC T4 (Thyroxine) Total | $20.15 | $31.00 | Mar 31, 2026 source file |
| Saint Alphonsus Regional Medical Center - Boise Boise · Boise City, ID HC T4 (Thyroxine) Total | $20.15 | $31.00 | Mar 31, 2026 source file |
| Kootenai Health Coeur D'Alene · Coeur d'Alene, ID HC KH MAYO FRTUP ASSAY OF TOTAL THYROXINE | $27.75 | $37.00 | Mar 27, 2026 source file |
| Idaho Falls Community Hospital Idaho Falls · Idaho Falls, ID ASSAY OF TOTAL THYROXINE | $28.00 | $28.00 | Mar 16, 2026 source file |
| Boundary Community Hospital Bonners Ferry · Bonners Ferry, ID Thyroxine (thyroid chemical), total | $29.60 | $37.00 | Jul 17, 2026 source file |
| St Luke's Magic Valley Regional Medical Center Twin Falls · Twin Falls, ID | $31.00 | $31.00 | Mar 25, 2026 source file |
| St Luke's McCall McCall · McCall, ID | $31.00 | $31.00 | Mar 25, 2026 source file |
| St Luke's Nampa Medical Center Nampa · Boise City, ID | $31.00 | $31.00 | Mar 25, 2026 source file |
| St Luke's Regional Medical Center Boise · Boise City, ID | $31.00 | $31.00 | Mar 25, 2026 source file |
| St Luke's Wood River Medical Center Ketchum · Hailey, ID | $31.00 | $31.00 | Mar 25, 2026 source file |
| Madison Memorial Hospital Rexburg · Rexburg, ID THYROXINE (THYROID CHEMICAL); TOTAL | $33.00 | $44.00 | Mar 26, 2026 source file |
| Clearwater Valley Hospital and Clinics Orofino · Orofino, ID Thyroxine (thyroid chemical), total | $35.25 | $47.00 | Jul 17, 2026 source file |
| St Marys Hospital Cottonwood · Cottonwood, ID Thyroxine (thyroid chemical), total | $35.25 | $47.00 | Jul 20, 2026 source file |
| Gritman Medical Center Moscow · Moscow, ID HC ASSAY OF TOTAL THYROXINE - T4 (THYROID HORMONE) | $38.00 | $38.00 | Aug 19, 2026 source file |
| Bingham Memorial Hospital Blackfoot · Blackfoot, ID Thyroxine (thyroid chemical), total | $39.38 | $56.25 | Feb 2, 2026 source file |
| Steele Memorial Medical Center Salmon · Salmon, ID Thyroxine (thyroid chemical), total | $45.00 | $60.00 | Feb 26, 2026 source file |
| Franklin County Medical Center Preston · Logan, UT-ID CANINE T4 | $50.00 | $50.00 | Nov 12, 2025 source file |
| Benewah Community Hospital Saint Maries · Saint Maries, ID Thyroxine (thyroid chemical), total | $50.40 | $56.00 | Nov 10, 2025 source file |
| Lost Rivers Medical Center Arco · Idaho Falls, ID Thyroxine (thyroid chemical), total | $55.20 | $69.00 | May 7, 2026 source file |
| Teton Valley Health Care Driggs · Jackson, WY-ID Thyroxine (thyroid chemical), total | $60.00 | $75.00 | Jul 21, 2026 source file |
| Bear Lake County Memorial Hospital Montpelier · Montpelier, ID *T4 REFERENCE LAB | $67.58 | $79.50 | May 28, 2026 source file |
| Caribou Medical Center Soda Springs · Soda Springs, ID Thyroxine (thyroid chemical), total | $68.60 | $98.00 | Jun 9, 2026 source file |
| Weiser Memorial Hospital Weiser · Weiser, ID T4, THYROXINE TOTAL | $77.87 | $103.82 | Aug 18, 2026 source file |
| Valor Health Emmett · Boise City, ID Thyroxine (thyroid chemical), total | $83.60 | $88.00 | Jun 12, 2026 source file |
| Northwest Specialty Hospital Post Falls · Coeur d'Alene, ID ASSAY OF TOTAL THYROXINE | $125.00 | $125.00 | Mar 5, 2026 source file |
| Portneuf Medical Center Pocatello · Pocatello, ID Thyroxine (thyroid chemical), total | $138.60 | $231.00 | Mar 31, 2026 source file |
| West Valley Medical Center Caldwell · Boise City, ID Thyroxine; total | $157.76 | $157.76 | Sep 1, 2026 source file |
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
File date When the hospital last updated its price file, as the file says itself. A dash means the file gives no date.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More
By metro area
Each metro page compares every listing, including prices for both sides of the body.
| Metro area | Hospitals | Lowest | Median |
|---|---|---|---|
| Boise City, ID | 7 | $16.70 | $31.00 |
| Idaho Falls, ID | 3 | $13.00 | $28.00 |
| Coeur d'Alene, ID | 2 | $27.75 | $76.38 |
| Bonners Ferry, ID | 1 | $29.60 | $29.60 |
| Blackfoot, ID | 1 | $39.38 | $39.38 |
| Cottonwood, ID | 1 | $35.25 | $35.25 |
| Hailey, ID | 1 | $31.00 | $31.00 |
| Jackson, WY-ID | 1 | $60.00 | $60.00 |
| Logan, UT-ID | 1 | $50.00 | $50.00 |
| McCall, ID | 1 | $31.00 | $31.00 |
| Montpelier, ID | 1 | $67.58 | $67.58 |
| Moscow, ID | 1 | $38.00 | $38.00 |
| Orofino, ID | 1 | $35.25 | $35.25 |
| Pocatello, ID | 1 | $138.60 | $138.60 |
| Rexburg, ID | 1 | $33.00 | $33.00 |
| Saint Maries, ID | 1 | $50.40 | $50.40 |
| Salmon, ID | 1 | $45.00 | $45.00 |
| Soda Springs, ID | 1 | $68.60 | $68.60 |
| Sandpoint, ID | 1 | $15.68 | $15.68 |
| Twin Falls, ID | 1 | $31.00 | $31.00 |
| Weiser, ID | 1 | $77.87 | $77.87 |
Market A metro area (as the Census Bureau defines it) or, outside metro areas, a town. Each links to every hospital price there.
Hospitals How many hospitals publish a cash price for this code here. Each hospital counts once, at its lowest outpatient cash price.
Lowest The lowest cash price among those hospitals.
Median The middle cash price: half of the hospitals charge less, half charge more. One price per hospital. More
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.
Total thyroxine (T4) blood test in other states
- Alabama$53.07
- Alaska$85.02
- Arizona$34.17
- Arkansas$20.79
- California$39.20
- Colorado$94.13
- Connecticut$33.89
- Delaware$59.64
- District of Columbia$86.50
- Florida$91.20
- Georgia$51.30
- Hawaii$60.20
- Illinois$81.90
- Indiana$47.50
- Iowa$53.10
- Kansas$39.12
- Kentucky$75.08
- Louisiana$23.19
- Maine$48.63
- Maryland$43.73
- Massachusetts$33.25
- Michigan$37.40
- Minnesota$43.20
- Mississippi$33.75
- Missouri$59.50
- Montana$54.50
- Nebraska$57.34
- Nevada$93.90
- New Hampshire$64.27
- New Jersey$14.85
- New Mexico$64.75
- New York$26.68
- North Carolina$73.50
- North Dakota$43.70
- Ohio$40.60
- Oklahoma$43.35
- Oregon$28.05
- Pennsylvania$45.26
- Puerto Rico$26.63
- Rhode Island$47.00
- South Carolina$85.91
- South Dakota$58.40
- Tennessee$26.97
- Texas$79.50
- Utah$123.03
- Vermont$57.19
- Virginia$55.09
- Washington$56.00
- West Virginia$46.50
- Wisconsin$52.00
- Wyoming$45.46
Median cash price across the state's hospitals.