Total T4 test cost in Killeen, TX
In Killeen-Temple, TX, 6 hospitals list a cash price for total thyroxine (T4) blood test: from $21.45 to $227.20, with a median of $73.64. The lowest listed price is at Seton Medical Center Harker Heights — $52.19 less than the median here. Across Texas, the median is $80.73 at 302 hospitals.
Cash prices at 6 facilities across 4 cities for code 84436, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 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 |
|---|---|---|---|---|
| Seton Medical Center Harker Heights lowest Harker Heights, TX · (254) 690-0900 Thyroxine (thyroid chemical), total source file | $21.45 | $214.50 | $5.77–$229.94 | 90% |
| Baylor Scott & White Continuing Care Hospital Temple, TX HC ASSAY OF TOTAL THYROXINE - THYROID PANEL, COMPREHENSIVE+1 more line at this price File of Jun 12, 2026 · source file | $73.64 | $122.73 | $5.77–$110.46 | 40% |
| Baylor Scott & White Pavilion - Temple Temple, TX · (254) 724-2111 HC ASSAY OF TOTAL THYROXINE - THYROID PANEL, COMPREHENSIVE+1 more line at this price File of Jun 12, 2026 · source file | $73.64 | $122.73 | $67.50–$85.91 | 40% |
| Baylor Scott & White McLane Children's Medical Center Temple, TX HC THYROXINE - TOTAL+1 more line at this price File of Jun 13, 2026 · source file | $73.64 | $122.73 | $5.77–$92.05 | 40% |
| AdventHealth Central Texas Killeen, TX · (254) 526-7523 HC THYROXINE T4 TOTAL - ARUP File of Apr 1, 2026 · source file | $160.61 | $160.61 | — | — |
| AdventHealth Rollins Brook Lampasas, TX · (512) 556-3682 HC THYROXINE T4 TOTAL File of Apr 1, 2026 · source file | $227.20 | $227.20 | — | — |
| AdventHealth Central Texas Killeen, TX · (254) 526-7523 HC T4 THYROID PANEL WITH FTI - ARUP+2 more lines at this price File of Apr 1, 2026 · source file | $227.20 | $227.20 | — | — |
Outpatient: lowest $21.45, median $73.64, highest $227.20 — a 10.6× difference within the same market.
As an inpatient, the same code is billed by 6 facilities here, median $73.64. 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 4 of 4 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 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.