TPO antibody test cost in Los Angeles, CA — inpatient
In Los Angeles-Long Beach-Anaheim, CA, 23 hospitals list a cash price for thyroid peroxidase (TPO) antibody test as an inpatient: from $6.68 to $156.80, with a median of $22.88. The lowest listed price is at UCI Health-Orange — $16.20 less than the median here. Across California, the median is $22.88 at 91 hospitals.
Cash prices at 23 facilities across 18 cities for code 86376, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Nov 26, 2025 and Apr 1, 2026.
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.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| UCI Health-Orange lowest Orange, CA · (714) 456-7890 HB LAB MICROSOMAL ANTIBODY EACH (UCI ONLY) | $6.68 | $16.70 | — | 60% | Apr 1, 2026 source file |
| Hoag Memorial Hospital Presbyterian Newport Beach, CA · (949) 764-4624 HC Microsomal Ab - Analyzer Ana, Ifa W/Reflex Titer | $8.39 | $12.91 | — | 35% | Apr 1, 2026 source file |
| Cedars-Sinai Medical Center Los Angeles, CA · (310) 423-5000 HB THYROID PEROXIDASE ANTIBODY | $9.10 | $14.00 | $13,270.00–$14,761.00 | 35% | Nov 26, 2025 source file |
| Cedars-Sinai Medical Center Los Angeles, CA · (310) 423-5000 HB LIVER-KIDNEY MICROSOMAL AB | $9.10 | $14.00 | $13,270.00–$14,761.00 | 35% | Nov 26, 2025 source file |
| USC Kenneth Norris Jr Cancer Hospital Los Angeles, CA Liver-Kidney Microsomal Igg(4) | $22.00 | $22.00 | — | — | Apr 1, 2026 source file |
| Kaiser Foundation Hospital - Orange County - Anaheim Anaheim, CA · (714) 279-4000 MICROSOMAL ANTIBODIES EACH | $22.88 | $44.00 | $10.00–$30.00 | 48% | — source file |
| Kaiser Foundation Hospital - Downey Downey, CA · (562) 461-6007 MICROSOMAL ANTIBODIES EACH | $22.88 | $44.00 | $10.00–$30.00 | 48% | — source file |
| Kaiser Foundation Hospital - Panorama City Panorama City, CA · (818) 375-2000 MICROSOMAL ANTIBODIES EACH | $22.88 | $44.00 | $10.00–$30.00 | 48% | — source file |
| Kaiser Foundation Hospital - Woodland Hills Woodland Hills, CA · (818) 719-3800 MICROSOMAL ANTIBODIES EACH | $22.88 | $44.00 | $10.00–$30.00 | 48% | — source file |
| Kaiser Foundation Hospital - Orange County - Irvine Irvine, CA MICROSOMAL ANTIBODIES EACH | $22.88 | $44.00 | $10.00–$30.00 | 48% | — source file |
| Kaiser Foundation Hospital - Los Angeles Los Angeles, CA · (323) 783-4011 MICROSOMAL ANTIBODIES EACH | $22.88 | $44.00 | $10.00–$30.00 | 48% | — source file |
| Kaiser Foundation Hospital - West la Los Angeles, CA · (213) 857-2201 MICROSOMAL ANTIBODIES EACH | $22.88 | $44.00 | $10.00–$30.00 | 48% | — source file |
| Kaiser Foundation Hospital - Baldwin Park Baldwin Park, CA · (626) 851-1011 MICROSOMAL ANTIBODIES EACH | $22.88 | $44.00 | $10.00–$30.00 | 48% | — source file |
| Kaiser Foundation Hospital - South Bay Harbor City, CA · (310) 325-5111 MICROSOMAL ANTIBODIES EACH | $22.88 | $44.00 | $10.00–$30.00 | 48% | — source file |
| St Jude Hospital Fullerton, CA · (714) 992-3000 HC MICROSOMAL ANTIBODIES EACH LAB | $28.78 | $59.95 | — | 52% | Apr 1, 2026 source file |
| Mission Hospital Regional Med Center Mission Viejo, CA · (949) 364-1400 HC MICROSOMAL ANTIBODIES EACH LAB | $28.78 | $59.95 | — | 52% | Apr 1, 2026 source file |
| St Joseph Hospital of Orange Orange, CA · (714) 633-9111 HC MICROSOMAL ANTIBODIES EACH LAB | $28.78 | $59.95 | — | 52% | Apr 1, 2026 source file |
| UCI Health - Lakewood Orange, CA · (714) 456-7890 MICROSOMAL ANTIBODY EA/5 | $30.00 | $75.00 | — | 60% | Apr 1, 2026 source file |
| Cedars-Sinai Marina Hospital Marina del Rey, CA · (310) 823-8911 HB LIVER-KIDNEY MICROSOMAL AB | $30.23 | $46.50 | $7,175.00–$9,712.00 | 35% | Nov 26, 2025 source file |
| Providence Little Co of Mary Medical Center San Pedro San Pedro, CA · (310) 832-3311 HC MICROSOMAL ANTIBODIES EACH CDM | $31.50 | $90.00 | — | 65% | Apr 1, 2026 source file |
| Providence Little Company of Mary Medical Center Torrance Torrance, CA · (310) 540-7676 HC MICROSOMAL ANTIBODIES EACH CDM | $31.50 | $90.00 | — | 65% | Apr 1, 2026 source file |
| Providence Little Co of Mary Medical Center San Pedro San Pedro, CA · (310) 832-3311 HC MICROSOMAL ANTIBODIES EACH LAB | $31.50 | $90.00 | — | 65% | Apr 1, 2026 source file |
| Providence Little Company of Mary Medical Center Torrance Torrance, CA · (310) 540-7676 HC MICROSOMAL ANTIBODIES EACH LAB | $31.50 | $90.00 | — | 65% | Apr 1, 2026 source file |
| Providence Saint Joseph Medical Center Burbank, CA · (818) 843-5111 HC MICROSOMAL ANTIBODIES EACH LAB | $37.80 | $108.00 | — | 65% | Apr 1, 2026 source file |
| UCI Health-Orange Orange, CA · (714) 456-7890 HB LAB THYROID PEROXIDASE AB | $41.60 | $104.00 | — | 60% | Apr 1, 2026 source file |
| Providence Holy Cross Medical Center Mission Hills, CA · (818) 365-8051 HC MICROSOMAL ANTIBODIES EACH LAB | $101.85 | $291.00 | — | 65% | Apr 1, 2026 source file |
| Providence Holy Cross Medical Center Mission Hills, CA · (818) 365-8051 HC MICROSOMAL ANTIBODIES EACH CDM | $101.85 | $291.00 | — | 65% | Apr 1, 2026 source file |
| Hoag Memorial Hospital Presbyterian Newport Beach, CA · (949) 764-4624 HC Microsomal Antibodies Each # | $122.55 | $188.54 | — | 35% | Apr 1, 2026 source file |
| Hoag Memorial Hospital Presbyterian Newport Beach, CA · (949) 764-4624 HC Microsomal Antibody - Liver/Kidney | $134.71 | $207.24 | — | 35% | Apr 1, 2026 source file |
| Providence Saint Joseph Medical Center Burbank, CA · (818) 843-5111 HC MICROSOMAL ANTIBODIES EACH CDM | $145.25 | $415.00 | — | 65% | Apr 1, 2026 source file |
| Providence Cedars Sinai Tarzana Medical Center Tarzana, CA · (818) 881-0800 HC MICROSOMAL ANTIBODIES EACH CDM | $156.80 | $448.00 | — | 65% | Apr 1, 2026 source file |
| Providence Cedars Sinai Tarzana Medical Center Tarzana, CA · (818) 881-0800 HC MICROSOMAL ANTIBODIES EACH LAB | $156.80 | $448.00 | — | 65% | Apr 1, 2026 source file |
Inpatient: lowest $6.68, median $22.88, highest $156.80 — a 23.5× difference within the same market.
As an outpatient, the same code is billed by 26 facilities here, median $22.88 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 11 of 11 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 2 it is 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
The TPO antibody test looks for antibodies against a thyroid enzyme. They are found in most people with Hashimoto's thyroiditis and many with Graves' disease.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.
16 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 86376 ($65.00). 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, CAMICROSOMAL ANTIBODY EA | $1.96 | file |
| UCI Health - Los Alamitos Orange, CAMICROSOMAL ANTIBODY EA | $1.96 | file |
| UCI Health - Fountain Valley Orange, CAMICROSOMAL ANTIBODY EA | $1.96 | file |
| St Jude Hospital Fullerton, CAHC MICROSOMAL ANTIBODY | $2.34 | file |
| Mission Hospital Regional Med Center Mission Viejo, CAHC MICROSOMAL ANTIBODY | $2.34 | file |
| St Joseph Hospital of Orange Orange, CAHC MICROSOMAL ANTIBODY | $2.34 | file |
| Mission Hospital Regional Med Center Mission Viejo, CAHC MICROSOMAL ANTIBODIES EACH CDM | $2.40 | file |
| St Jude Hospital Fullerton, CAHC MICROSOMAL ANTIBODIES EACH CDM | $2.40 | file |
| St Joseph Hospital of Orange Orange, CAHC MICROSOMAL ANTIBODIES EACH CDM | $2.40 | file |
| UCI Health - Fountain Valley Orange, CAMICROSOMAL ANTIBODY EA/2 | $5.00 | file |
| UCI Health - Los Alamitos Orange, CAMICROSOMAL ANTIBODY EA/2 | $5.00 | file |
| UCI Health - Placentia Linda Orange, CAMICROSOMAL ANTIBODY EA/2 | $5.00 | file |
| UCI Health - Lakewood Orange, CAMICROSOMAL ANTIBODY EA/2 | $5.00 | file |
| Hoag Memorial Hospital Presbyterian Newport Beach, CAHC Microsomal Antibody -Throid Peroxidase | $5.19 | file |
| UCI Health-Orange Orange, CAHB MICROSOMAL ANTIBODIES EACH | $5.34 | file |
| Hoag Memorial Hospital Presbyterian Newport Beach, CAHC Microsomal Antibody Each - Lupus Panel 4 | $5.43 | file |