Free T4 (thyroid) test at Corona Regional Medical Center
CPT 84439 · Corona, CA
These are Corona Regional Medical Center's own posted figures from its standard-charges file dated September 1, 2026. They are not a quote. Source: the hospital's file · its price transparency page.
Across 77 California hospitals we index that post a cash price for this service: lowest $7.23, median $93.86, highest $740.75. See every hospital.
Nearby hospitals, same service
| Hospital | Distance | Cash price | Gross charge | File date |
|---|---|---|---|---|
| Kaiser Foundation Hospital, Riverside Riverside, CA | 7.6 mi | $68.12 | $131.00 | 2026-04-01 |
| Chino Valley Medical Center Chino, CA | 10.9 mi | $9.00 | $341.48 | 2026-09-01 |
| Foothill Regional Medical Center Tustin, CA | 15.3 mi | $282.05 | $282.05 | 2026-03-18 |
| Montclair Hospital Medical Center Montclair, CA | 15.5 mi | $9.00 | $341.48 | 2026-09-01 |
| Kaiser Foundation Hospital - Orange County - Anaheim Anaheim, CA | 15.6 mi | $68.12 | $131.00 | 2026-04-01 |
| Riverside Community Hospital Riverside, CA | 15.9 mi | $740.75 | $740.75 | 2026-09-01 |
| Children's Hospital of Orange County Orange, CA | 16.7 mi | $208.00 | $208.00 | 2026-03-19 |
| San Antonio Regional Hospital Upland, CA | 17.1 mi | $185.00 | $532.00 | 2026-04-02 |
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 |
|---|---|---|---|---|
| THYROXINE FREE 301 line 8431 | both | $641.00 | $6.62 – $576.90 | |
| THYROXINE FREE line 7449 | both | $3.00 | ? – $167.58 |
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 Corona Regional Medical Center prices