Free T4 (thyroid) test at St. Mary Medical Center
CPT 84439 · Long Beach, CA
These are St. Mary Medical Center'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 36 California hospitals we index that post a cash price for this service: lowest $16.10, median $102.48, highest $740.75. See every hospital.
Nearby hospitals, same service
| Hospital | Distance | Cash price | Gross charge | File date |
|---|---|---|---|---|
| Kaiser Foundation Hospital - South Bay Harbor City, CA | 6.1 mi | $68.12 | $131.00 | 2026-04-01 |
| Providence Little CO of Mary Medical Center San Pedro San Pedro, CA | 7.4 mi | $83.65 | $239.00 | 2026-04-01 |
| Memorial Hospital of Gardena Gardena, CA | 9.5 mi | $165.90 | $165.90 | 2026-02-04 |
| Saint Francis Medical Center Lynwood, CA | 9.8 mi | $102.48 | $183.00 | 2026-04-01 |
| Providence Little Company of Mary Medical Center Torrance Torrance, CA | 9.8 mi | $83.65 | $239.00 | 2026-04-01 |
| PIH Health Downey Hospital Downey, CA | 11.6 mi | $68.12 | $131.00 | 2026-04-01 |
| Community Hospital of Huntington Park Huntington Park, CA | 13.7 mi | $165.90 | $165.90 | 2026-02-04 |
| East Los Angeles Doctors Hospital Los Angeles, CA | 16.6 mi | $165.90 | $165.90 | 2026-02-04 |
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 CDM standard_charge_information[5337] | both | $118.56 | $247.00 | |
| HC ASSAY OF FREE THYROXINE CDM standard_charge_information[5337] | both | $52.56 | $109.50 | |
| HC ASSAY OF FREE THYROXINE CDM standard_charge_information[5338] | both | $39.19 | $81.65 | |
| HC ASSAY OF FREE THYROXINE LAB standard_charge_information[5583] | both | $4.80 | $10.00 | |
| HC ASSAY OF FREE THYROXINE LAB standard_charge_information[5734] | both | $118.56 | $247.00 | |
| Assay of free thyroxine standard_charge_information[326796] | outpatient | $9.02 – $128.13 |
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 St. Mary Medical Center prices