Free T3 test cost in Los Angeles, CA
In Los Angeles-Long Beach-Anaheim, CA, 29 hospitals list a cash price for Free T3 thyroid hormone test: from $14.40 to $266.77, with a median of $52.52. The lowest listed price is at UCI Health - Fountain Valley — $38.12 less than the median here. Across California, the median is $63.50 at 97 hospitals.
Cash prices at 29 facilities across 24 cities for code 84481, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Nov 26, 2025 and Sep 1, 2026.
Lowest$14.40UCI Health - Fountain Valley
Median$52.52half pay less
Highest$266.77in this market
Difference18.5×highest vs lowest
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Los Angeles-Long Beach-Anaheim, CA.
median
Lowest $14.40Highest $266.77
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| UCI Health - Fountain Valley lowest Orange, CA T3 FREE | $14.40 | $36.00 | — | 60% | Apr 1, 2026 source file |
| Encino Hospital Medical Center Encino, CA LC 010390 T3FREE | $16.00 | $157.50 | $1.50–$274.10 | 90% | Sep 1, 2026 source file |
| Encino Hospital Medical Center Encino, CA T-3 FREE | $16.00 | $274.10 | $1.50–$274.10 | 94% | Sep 1, 2026 source file |
| Encino Hospital Medical Center Encino, CA T-3 FREE* LC | $16.00 | $5.00 | $1.50–$274.10 | -220% | Sep 1, 2026 source file |
| Centinela Hospital Medical Center Inglewood, CA T3 FREE | $16.00 | $115.55 | $1.09–$250.00 | 86% | Sep 1, 2026 source file |
| Centinela Hospital Medical Center Inglewood, CA T3 FREE BY DIAL YSIS | $16.00 | $250.00 | $1.09–$250.00 | 94% | Sep 1, 2026 source file |
| Centinela Hospital Medical Center Inglewood, CA T-3 FREE | $16.00 | $5.00 | $1.09–$250.00 | -220% | Sep 1, 2026 source file |
| Encino Hospital Medical Center Encino, CA LC 010389 TRIIODOTHYRON,FR,SER | $16.00 | $33.88 | $1.50–$274.10 | 53% | Sep 1, 2026 source file |
| La Palma Intercommunity Hospital La Palma, CA Hc Triiodothyronine Free Assay (Ft-3) | $16.00 | $87.24 | $13.69–$87.24 | 82% | Sep 1, 2026 source file |
| Sherman Oaks Hospital Sherman Oaks, CA FREE T3 | $16.00 | $54.00 | $1.50–$157.50 | 70% | Sep 1, 2026 source file |
| Sherman Oaks Hospital Sherman Oaks, CA LC 010389 TRIIODTHYRNIN,FR,SER | $16.00 | $20.92 | $1.50–$157.50 | 24% | Sep 1, 2026 source file |
| Sherman Oaks Hospital Sherman Oaks, CA T3 FREE/LC | $16.00 | $5.00 | $1.50–$157.50 | -220% | Sep 1, 2026 source file |
| Sherman Oaks Hospital Sherman Oaks, CA LC 010390 T3 FREE | $16.00 | $157.50 | $1.50–$157.50 | 90% | Sep 1, 2026 source file |
| Providence Health System - Southern California Burbank, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE LAB | $22.05 | $63.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California Burbank, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $22.05 | $63.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California Burbank, CA HC FREE ASSAY (FT-3) | $22.05 | $63.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California Santa Monica, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE LAB | $35.70 | $102.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California Santa Monica, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $35.70 | $102.00 | — | 65% | Apr 1, 2026 source file |
| Tarzana Medical Center LLC Tarzana, CA HC FREE ASSAY (FT-3) | $47.25 | $135.00 | — | 65% | Apr 1, 2026 source file |
| Tarzana Medical Center LLC Tarzana, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE LAB | $47.25 | $135.00 | — | 65% | Apr 1, 2026 source file |
| Tarzana Medical Center LLC Tarzana, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $47.25 | $135.00 | — | 65% | Apr 1, 2026 source file |
| Kaiser Foundation Hospital - West la Los Angeles, CA ASSAY OF TRIIODOTHYRONINE T3 FREE | $52.52 | $101.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Los Angeles Los Angeles, CA ASSAY OF TRIIODOTHYRONINE T3 FREE | $52.52 | $101.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Panorama City Panorama City, CA ASSAY OF TRIIODOTHYRONINE T3 FREE | $52.52 | $101.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Downey Downey, CA ASSAY OF TRIIODOTHYRONINE T3 FREE | $52.52 | $101.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Orange County - Anaheim Anaheim, CA ASSAY OF TRIIODOTHYRONINE T3 FREE | $52.52 | $101.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - South Bay Harbor City, CA ASSAY OF TRIIODOTHYRONINE T3 FREE | $52.52 | $101.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Woodland Hills Woodland Hills, CA ASSAY OF TRIIODOTHYRONINE T3 FREE | $52.52 | $101.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Baldwin Park Baldwin Park, CA ASSAY OF TRIIODOTHYRONINE T3 FREE | $52.52 | $101.00 | $12.00–$35.00 | 48% | — source file |
| Kaiser Foundation Hospital - Orange County - Irvine Irvine, CA ASSAY OF TRIIODOTHYRONINE T3 FREE | $52.52 | $101.00 | $12.00–$35.00 | 48% | — source file |
| St Jude Hospital Inc Fullerton, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE LAB | $59.76 | $124.50 | — | 52% | Apr 1, 2026 source file |
| Mission Hospital Regional Med Center Mission Viejo, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE LAB | $59.76 | $124.50 | — | 52% | Apr 1, 2026 source file |
| St Joseph Hospital of Orange Orange, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE LAB | $59.76 | $124.50 | — | 52% | Apr 1, 2026 source file |
| Providence Health System - Southern California Torrance, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $62.65 | $179.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California San Pedro, CA HC FREE ASSAY (FT-3) | $62.65 | $179.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California San Pedro, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $62.65 | $179.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California San Pedro, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE LAB | $62.65 | $179.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California Torrance, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE LAB | $62.65 | $179.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California Torrance, CA HC FREE ASSAY (FT-3) | $62.65 | $179.00 | — | 65% | Apr 1, 2026 source file |
| Mission Hospital Regional Med Center Mission Viejo, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $71.04 | $148.00 | — | 52% | Apr 1, 2026 source file |
| Keck Hospital of USC Los Angeles, CA Free Assay (Ft-3) | $72.75 | $72.75 | — | — | Apr 1, 2026 source file |
| Providence Health System - Southern California Santa Monica, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $81.20 | $232.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California Santa Monica, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE LAB | $81.20 | $232.00 | — | 65% | Apr 1, 2026 source file |
| Hoag Memorial Hospital Presbyterian Newport Beach, CA HC Assay of Triiodothyronine T3 Free # | $84.31 | $129.71 | — | 35% | Apr 1, 2026 source file |
| Providence Health System - Southern California Torrance, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $103.60 | $296.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California Torrance, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE LAB | $103.60 | $296.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California Torrance, CA HC FREE ASSAY (FT-3) | $103.60 | $296.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California San Pedro, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $103.60 | $296.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California San Pedro, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE LAB | $103.60 | $296.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California San Pedro, CA HC FREE ASSAY (FT-3) | $103.60 | $296.00 | — | 65% | Apr 1, 2026 source file |
| USC Arcadia Hospital Arcadia, CA FREE T3 | $103.95 | $297.00 | $16.26–$306.29 | 65% | Jul 27, 2026 source file |
| Providence Health System - Southern California Burbank, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE LAB | $121.80 | $348.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California Burbank, CA HC FREE ASSAY (FT-3) | $121.80 | $348.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California Burbank, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $121.80 | $348.00 | — | 65% | Apr 1, 2026 source file |
| Tarzana Medical Center LLC Tarzana, CA HC FREE ASSAY (FT-3) | $122.85 | $351.00 | — | 65% | Apr 1, 2026 source file |
| Tarzana Medical Center LLC Tarzana, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE LAB | $122.85 | $351.00 | — | 65% | Apr 1, 2026 source file |
| Tarzana Medical Center LLC Tarzana, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $122.85 | $351.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California Mission Hills, CA HC FREE ASSAY (FT-3) | $206.15 | $589.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California Mission Hills, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $206.15 | $589.00 | — | 65% | Apr 1, 2026 source file |
| Providence Health System - Southern California Mission Hills, CA HC ASSAY OF TRIIODOTHYRONINE T3 FREE LAB | $206.15 | $589.00 | — | 65% | Apr 1, 2026 source file |
| USC Kenneth Norris Jr Cancer Hospital Los Angeles, CA Free Assay (Ft-3) | $215.25 | $215.25 | — | — | Apr 1, 2026 source file |
| Cedars-Sinai Marina Hospital Marina del Rey, CA Outpatient Global Laboratory, Radiology and Diagnostic Services | $216.71 | $333.40 | $41.65–$131.30 | 35% | Nov 26, 2025 source file |
| Cedars-Sinai Marina Hospital Marina del Rey, CA HB LAB T3;FREE | $216.71 | $333.40 | — | 35% | Nov 26, 2025 source file |
| Cedars-Sinai Marina Hospital Marina del Rey, CA Laboratory Services | $216.71 | $333.40 | $41.65–$131.30 | 35% | Nov 26, 2025 source file |
| Cedars-Sinai Marina Hospital Marina del Rey, CA Clinical and Anatomical Laboratory Services | $216.71 | $333.40 | $41.65–$131.30 | 35% | Nov 26, 2025 source file |
| Cedars-Sinai Medical Center Los Angeles, CA TRIIODOTHYRONINE T3; FREE | $266.77 | $410.41 | $41.61–$235.68 | 35% | Nov 26, 2025 source file |
| Cedars-Sinai Medical Center Los Angeles, CA HB LAB T3;FREE | $266.77 | $410.41 | — | 35% | Nov 26, 2025 source file |
| Cedars-Sinai Medical Center Los Angeles, CA TRIIODOTHYRONINE, FREE (FT-3), RIA (UNBOUND T-3 ONLY) | $266.77 | $410.41 | $41.61–$235.68 | 35% | Nov 26, 2025 source file |
| Cedars-Sinai Medical Center Los Angeles, CA Laboratory Services | $266.77 | $410.41 | $41.61–$235.68 | 35% | Nov 26, 2025 source file |
Outpatient: lowest $14.40, median $52.52, highest $266.77 — a 18.5× difference within the same market.
As an inpatient, the same code is billed by 26 facilities here, median $59.76. 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 5 of 16 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
Free T3 is the active thyroid hormone not bound to proteins. It is usually checked after TSH (84443) and free T4 (84439), mainly when an overactive thyroid is suspected.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.
6 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 84481 ($85.20). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| UCI Health - Lakewood Orange, CAT3 FREE | $1.60 | file |
| UCI Health - Los Alamitos Orange, CAT3 FREE | $1.60 | file |
| UCI Health - Placentia Linda Orange, CAT3 FREE | $1.60 | file |
| St Jude Hospital Inc Fullerton, CAHC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $2.40 | file |
| St Joseph Hospital of Orange Orange, CAHC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $2.40 | file |
| Mission Hospital Regional Med Center Mission Viejo, CAHC ASSAY OF TRIIODOTHYRONINE T3 FREE CDM | $2.40 | file |