Free T4 (thyroid) test at Memorial Hermann Katy Hospital
CPT 84439 · Katy, TX
These are Memorial Hermann Katy Hospital's own posted figures from its standard-charges file dated April 1, 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 |
|---|---|---|---|---|
| Houston Methodist West Hospital Houston, TX | 7.2 mi | $368.50 | $737.00 | 2026-04-01 |
| HCA Houston Healthcare West Houston, TX | 10.6 mi | $588.00 | $588.00 | 2026-09-01 |
| St. Luke's Sugar Land Hospital Sugar Land, TX | 15.2 mi | $62.65 | $179.00 | 2026-02-28 |
| Houston Methodist Sugarland Hospital Sugar Land, TX | 16.5 mi | $368.50 | $737.00 | 2026-04-01 |
| Memorial Hermann Sugar Land Hospital Sugar Land, TX | 16.5 mi | $45.92 | $143.50 | 2026-04-01 |
| Memorial Hermann Memorial City Hospital Houston, TX | 18.7 mi | $45.92 | $143.50 | 2026-04-01 |
| Houston Methodist Cypress Hospital Cypress, TX | 19.6 mi | $368.50 | $737.00 | 2026-04-01 |
| Houston Methodist Willowbrook Hospital Houston, TX | 21.8 mi | $368.50 | $737.00 | 2026-04-01 |
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 |
|---|---|---|---|---|
| HC ASSAY OF FREE THYROXINE - T4 FREE line 4335 | both | $45.92 | $143.50 | |
| HC RL THYROXINE FREE S/O line 4336 | both | $43.76 | $136.75 | |
| Assay of free thyroxine line 46179 | outpatient | $9.02 – $17.14 |
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 Memorial Hermann Katy Hospital prices