Free T4 (thyroid) test at Christus Santa Rosa Hospital-San Marcos
CPT 84439 · San Marcos, TX
These are Christus Santa Rosa Hospital-San Marcos's own posted figures from its standard-charges file dated January 13, 2026. They are not a quote. Source: the hospital's file · its price transparency page.
Across 111 Texas hospitals we index that post a cash price for this service: lowest $8.84, median $214.88, highest $1,966.36. See every hospital.
Nearby hospitals, same service
| Hospital | Distance | Cash price | Gross charge | File date |
|---|---|---|---|---|
| Baylor Scott & White Medical Center - Buda Buda, TX | 16.2 mi | $144.14 | $240.24 | 2026-06-13 |
| Ascension Seton Southwest Austin, TX | 20.5 mi | $43.83 | $121.75 | 2026-01-01 |
| Ascension Seton Edgar B Davis Luling, TX | 24.5 mi | $94.05 | $261.25 | 2026-01-01 |
| Baylor Scott & White Medical Center- Austin Austin, TX | 27.7 mi | $144.14 | $240.24 | 2026-06-13 |
| St. David's South Austin Medical Center Austin, TX | 28.2 mi | $927.00 | $927.00 | 2026-09-01 |
| Dell Seton Medical Center at the University of TX Austin, TX | 30.5 mi | $39.51 | $109.75 | 2026-01-01 |
| Ascension Seton Medical Center Austin Austin, TX | 32.1 mi | $43.83 | $121.75 | 2026-01-01 |
| St. David's Medical Center Austin, TX | 32.1 mi | $327.00 | $327.00 | 2026-09-01 |
Distances are straight-line from ZIP code centers. Each hospital's figures come from its own file; files are updated on different dates.
Every row for CPT 84439 in this hospital's file
| Row in the hospital's file | Setting | Cash | Gross | Insurer min – max |
|---|---|---|---|---|
| ASSAY OF FREE THYROXINE standard_charge_information[1411] | outpatient | $8.42 – $145.00 |
The first row is the one used above. A price for one code usually covers the hospital's facility charge only; the doctor, anesthesia, pathology and other services can be billed separately. Ask the hospital for a good faith estimate before a scheduled service: if you pay yourself and the bill comes in $400 or more above the estimate, you can dispute it under the No Surprises Act.
Check a bill from this hospital All Christus Santa Rosa Hospital-San Marcos prices