Free T4 test cost in Orlando, FL
In Orlando-Kissimmee-Sanford, FL, 8 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test: from $7.60 to $142.84, with a median of $17.00. The lowest listed price is at Orlando Health Central and 3 other hospitals — $9.40 less than the median here. Across Florida, the median is $70.60 at 81 hospitals.
Cash prices at 8 facilities across 7 cities for code 84439, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 31, 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 Orlando-Kissimmee-Sanford, FL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Orlando Health Central lowest Ocoee, FL · (407) 296-1000 Hb Assay Of Free Thyroxine - T4 Free | $7.60 | $19.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health St Cloud Hospital lowest Saint Cloud, FL · (407) 892-2135 Hb Assay Of Free Thyroxine - T4 Free | $7.60 | $19.00 | — | 60% | Apr 1, 2026 source file |
| South Lake Hospital lowest Clermont, FL · (352) 394-4071 Hb Assay Of Free Thyroxine - T4 Free | $7.60 | $19.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health lowest Orlando, FL · (321) 841-5111 Hb Assay Of Free Thyroxine - T4 Free | $7.60 | $19.00 | — | 60% | Apr 1, 2026 source file |
| Orlando Health St Cloud Hospital Saint Cloud, FL · (407) 892-2135 Hb Free Thyroxine-Ref | $18.49 | $46.22 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Orlando, FL · (321) 841-5111 Hb Free Thyroxine-Ref | $18.49 | $46.22 | — | 60% | Apr 1, 2026 source file |
| Orlando Health Central Ocoee, FL · (407) 296-1000 Hb Free Thyroxine-Ref | $18.49 | $46.22 | — | 60% | Apr 1, 2026 source file |
| South Lake Hospital Clermont, FL · (352) 394-4071 Hb Free Thyroxine-Ref | $18.49 | $46.22 | — | 60% | Apr 1, 2026 source file |
| UF Health Leesburg, FL · (352) 323-5762 UF UC ASSAY OF FREE THYROXINE | $26.40 | $48.00 | $21.60–$33.26 | 45% | Mar 31, 2026 source file |
| UF Health The Villages, FL · (352) 751-8000 HB FREE T4 | $35.75 | $65.00 | $6.66–$9.92 | 45% | Mar 31, 2026 source file |
| UF Health Leesburg, FL · (352) 323-5762 HB FREE T4 | $35.75 | $65.00 | $29.25–$45.05 | 45% | Mar 31, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC T4 FREE BY DIALYSIS - ARUP | $59.00 | $59.00 | — | — | Apr 1, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC T4 FREE - THYROXINE FREE | $59.00 | $59.00 | — | — | Apr 1, 2026 source file |
| AdventHealth Waterman Tavares, FL · (352) 253-3368 HC T4 FREE BY DIALYSIS - ARUP | $142.84 | $142.84 | — | — | Apr 1, 2026 source file |
| AdventHealth Waterman Tavares, FL · (352) 253-3368 HC T4 FREE - THYROXINE FREE | $142.84 | $142.84 | — | — | Apr 1, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC T4 FREE | $437.00 | $437.00 | — | — | Apr 1, 2026 source file |
| AdventHealth Orlando Orlando, FL · (407) 303-1976 HC T4 FREE REFLEX FROM TSH CASCADE | $437.00 | $437.00 | — | — | Apr 1, 2026 source file |
Outpatient: lowest $7.60, median $17.00, highest $142.84 — a 18.8× difference within the same market.
As an inpatient, the same code is billed by 6 facilities here, median $7.60. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 1 of 2 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.