Free T4 test cost in Fresno, CA — inpatient
In Fresno, CA, 3 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test as an inpatient: from $22.32 to $102.48, with a median of $22.32. The lowest listed price is at Fresno Community Hospital and Medical Center and 1 other hospital. Across California, the median is $68.12 at 104 hospitals.
Cash prices at 3 facilities across 2 cities for code 84439, as an inpatient (admitted to hospital) . Collected Sep 24, 2026; the hospital files themselves were last updated between Jun 15, 2026 and Jun 18, 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 Fresno, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Fresno Community Hospital and Medical Center lowest Fresno, CA · (559) 459-6000 THYROXINE FREE FTI;Q | $22.32 | $27.90 | $7.11–$30.69 | 20% | Jun 18, 2026 source file |
| Fresno Community Hospital and Medical Center lowest Clovis, CA · (559) 324-4000 THYROXINE FREE FTI;Q | $22.32 | $27.90 | $7.11–$30.69 | 20% | Jun 15, 2026 source file |
| Fresno Community Hospital and Medical Center lowest Fresno, CA · (559) 459-6000 THYROXINE FREE FTI;Q | $22.32 | $27.90 | $7.11–$30.69 | 20% | Jun 18, 2026 source file |
| Fresno Community Hospital and Medical Center lowest Fresno, CA · (559) 459-6000 THYROXINE FREE FTI;Q | $22.32 | $27.90 | $7.11–$30.69 | 20% | Jun 16, 2026 source file |
| Kaiser Foundation Hospital - Fresno Fresno, CA · (559) 448-4500 ASSAY OF FREE THYROXINE | $102.48 | $183.00 | $8.00–$25.00 | 44% | — source file |
| Fresno Community Hospital and Medical Center Fresno, CA · (559) 459-6000 FREE T4 | $165.63 | $207.03 | $52.79–$227.73 | 20% | Jun 18, 2026 source file |
| Fresno Community Hospital and Medical Center Fresno, CA · (559) 459-6000 FREE T4 | $165.63 | $207.03 | $52.79–$227.73 | 20% | Jun 16, 2026 source file |
| Fresno Community Hospital and Medical Center Clovis, CA · (559) 324-4000 FREE T4 | $165.63 | $207.03 | $52.79–$227.73 | 20% | Jun 15, 2026 source file |
| Fresno Community Hospital and Medical Center Fresno, CA · (559) 459-6000 FREE T4 | $165.63 | $207.03 | $52.79–$227.73 | 20% | Jun 18, 2026 source file |
Inpatient: lowest $22.32, median $22.32, highest $102.48 — a 4.6× difference within the same market.
As an outpatient, the same code is billed by 4 facilities here, median $62.40 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 2 of 3 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. 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 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.