Free T4 test cost in Killeen, TX
In Killeen-Temple, TX, 5 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test: from $33.00 to $251.77, with a median of $33.00. The lowest listed price is at Baylor Scott & White McLane Children's Medical Center and 2 other hospitals. Across Texas, the median is $39.51 at 101 hospitals.
Cash prices at 5 facilities across 3 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 Apr 1, 2026 and Jun 13, 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 Killeen-Temple, TX.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Baylor Scott & White McLane Children's Medical Center lowest Temple, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $7.58–$56.92 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Pavilion - Temple lowest Temple, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 12, 2026 source file |
| Baylor Scott & White Continuing Care Hospital lowest Temple, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $7.58–$49.50 | 40% | Jun 12, 2026 source file |
| Baylor Scott & White Pavilion - Temple Temple, TX HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 12, 2026 source file |
| Baylor Scott & White McLane Children's Medical Center Temple, TX HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $7.58–$56.92 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Continuing Care Hospital Temple, TX HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $7.58–$60.75 | 40% | Jun 12, 2026 source file |
| Baylor Scott & White Pavilion - Temple Temple, TX HC THYROXINE - FREE | $132.83 | $221.39 | $121.76–$154.97 | 40% | Jun 12, 2026 source file |
| Baylor Scott & White Pavilion - Temple Temple, TX HC THYROXINE (T4), FREE | $132.83 | $221.39 | $121.76–$154.97 | 40% | Jun 12, 2026 source file |
| Baylor Scott & White Pavilion - Temple Temple, TX HC THYROXINE (T4), FREE BY DIALYSIS | $132.83 | $221.39 | $121.76–$154.97 | 40% | Jun 12, 2026 source file |
| Baylor Scott & White Continuing Care Hospital Temple, TX HC THYROXINE - FREE | $132.83 | $221.39 | $7.58–$199.25 | 40% | Jun 12, 2026 source file |
| Baylor Scott & White Continuing Care Hospital Temple, TX HC THYROXINE (T4), FREE | $132.83 | $221.39 | $7.58–$199.25 | 40% | Jun 12, 2026 source file |
| Baylor Scott & White Continuing Care Hospital Temple, TX HC THYROXINE (T4), FREE BY DIALYSIS | $132.83 | $221.39 | $7.58–$199.25 | 40% | Jun 12, 2026 source file |
| Baylor Scott & White McLane Children's Medical Center Temple, TX HC THYROXINE - FREE | $132.83 | $221.39 | $7.58–$166.04 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White McLane Children's Medical Center Temple, TX HC THYROXINE (T4), FREE | $132.83 | $221.39 | $7.58–$166.04 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White McLane Children's Medical Center Temple, TX HC THYROXINE (T4), FREE BY DIALYSIS | $132.83 | $221.39 | $7.58–$166.04 | 40% | Jun 13, 2026 source file |
| AdventHealth Central Texas Killeen, TX · (254) 526-7523 HC T4 FREE - THYROXINE FREE | $251.77 | $251.77 | — | — | Apr 1, 2026 source file |
| AdventHealth Rollins Brook Lampasas, TX · (512) 556-3682 HC T4 FREE - THYROXINE FREE | $251.77 | $251.77 | — | — | Apr 1, 2026 source file |
| AdventHealth Central Texas Killeen, TX · (254) 526-7523 HC T4 FREE BY DIALYSIS - ARUP | $267.31 | $267.31 | — | — | Apr 1, 2026 source file |
Outpatient: lowest $33.00, median $33.00, highest $251.77 — a 7.6× difference within the same market.
As an inpatient, the same code is billed by 5 facilities here, median $33.00. 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 3 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.