TPO antibody test cost in Napa, CA
In Napa, CA, 1 hospital lists a cash price for thyroid peroxidase (TPO) antibody test: from $30.57 to $30.57, with a median of $30.57. Across California, the median is $22.88 at 91 hospitals.
Cash prices at 1 facility 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 Apr 1, 2026.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Providence Queen of the Valley Medical Center Napa, CA · (707) 252-4411 HC MICROSOMAL ANTIBODIES EACH LAB | $30.57 | $59.95 | — | 49% | Apr 1, 2026 source file |
Outpatient: lowest $30.57, median $30.57, highest $30.57.
As an inpatient, the same code is billed by 1 facility here, median $30.57. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
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.
2 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.
| Providence Queen of the Valley Medical Center Napa, CAHC MICROSOMAL ANTIBODY | $2.49 | file |
| Providence Queen of the Valley Medical Center Napa, CAHC MICROSOMAL ANTIBODIES EACH CDM | $2.55 | file |