TPO antibody test cost in San Francisco, CA
In San Francisco-Oakland-Fremont, CA, 11 hospitals list a cash price for thyroid peroxidase (TPO) antibody test: from $8.70 to $68.00, with a median of $63.28. The lowest listed price is at Stanford Health Care Tri-Valley — $54.58 less than the median here. Across California, the median is $22.88 at 91 hospitals.
Cash prices at 11 facilities across 10 cities for code 86376, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Jul 22, 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 San Francisco-Oakland-Fremont, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Stanford Health Care Tri-Valley lowest Pleasanton, CA · (925) 847-3000 Lablkm1ab Micro Anti Ea | $8.70 | $21.76 | — | 60% | Apr 1, 2026 source file |
| Kaiser Foundation Hospital - San Francisco San Francisco, CA · (415) 833-2646 MICROSOMAL ANTIBODIES EACH | $63.28 | $113.00 | $13.00–$40.00 | 44% | — source file |
| Kaiser Foundation Hospital - Oakland/Richmond Oakland, CA · (510) 752-1000 MICROSOMAL ANTIBODIES EACH | $63.28 | $113.00 | $13.00–$40.00 | 44% | — source file |
| Kaiser Foundation Hospital - South San Francisco South San Francisco, CA · (650) 742-3200 MICROSOMAL ANTIBODIES EACH | $63.28 | $113.00 | $13.00–$40.00 | 44% | — source file |
| Kaiser Foundation Hospital - Walnut Creek Walnut Creek, CA · (925) 295-4000 MICROSOMAL ANTIBODIES EACH | $63.28 | $113.00 | $13.00–$40.00 | 44% | — source file |
| Kaiser Foundation Hospital - Fremont Fremont, CA · (510) 784-4000 MICROSOMAL ANTIBODIES EACH | $63.28 | $113.00 | $13.00–$40.00 | 44% | — source file |
| Kaiser Foundation Hospital - Redwood City Redwood City, CA · (650) 299-2000 MICROSOMAL ANTIBODIES EACH | $63.28 | $113.00 | $13.00–$40.00 | 44% | — source file |
| Kaiser Foundation Hospital - San Rafael San Rafael, CA · (415) 444-2000 MICROSOMAL ANTIBODIES EACH | $63.28 | $113.00 | $13.00–$40.00 | 44% | — source file |
| Kaiser Foundation Hospital - Antioch Antioch, CA · (925) 813-6500 MICROSOMAL ANTIBODIES EACH | $63.28 | $113.00 | $13.00–$40.00 | 44% | — source file |
| Kaiser Foundation Hospital - San Leandro San Leandro, CA · (510) 454-1000 MICROSOMAL ANTIBODIES EACH | $63.28 | $113.00 | $13.00–$40.00 | 44% | — source file |
| Chinese Hospital Association San Francisco, CA · (415) 677-2480 Microsomal antibodies (autoantibody) measurement | $68.00 | $68.00 | $9.89–$260.90 | — | Jul 22, 2026 source file |
Outpatient: lowest $8.70, median $63.28, highest $68.00 — a 7.8× difference within the same market.
As an inpatient, the same code is billed by 10 facilities here, median $63.28. 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 1 of 10 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
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.
5 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.
| Hayward Sisters Hospital Hayward, CALC -THYROIDPEROXIDASE(TPO)AB | $1.89 | file |
| Stanford Health Care Tri-Valley Pleasanton, CAThyroid Peroxidase Ab | $3.20 | file |
| Hayward Sisters Hospital Hayward, CALC-LIVER KIDNEY MICROSOMAL ANT | $4.94 | file |
| Stanford Health Care Tri-Valley Pleasanton, CAHC 6959 11045r Liv Kid Igg Ab | $5.20 | file |
| Stanford Health Care Tri-Valley Pleasanton, CAHC 6959 Liver Kid Microsome-1 | $6.28 | file |