Hepatitis B test cost in Napa, CA
In Napa, CA, 1 hospital lists a cash price for hepatitis B surface antigen (HBsAg) test: from $28.05 to $28.05, with a median of $28.05. Across California, the median is $71.76 at 94 hospitals.
Cash prices at 1 facility for code 87340, 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.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Napa, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Providence Queen of the Valley Medical Center lowest Napa, CA · (707) 252-4411 HC IAAD IA HEPATITIS B SURFACE ANTIGEN CDM | $28.05 | $55.00 | — | 49% | Apr 1, 2026 source file |
| Providence Queen of the Valley Medical Center Napa, CA · (707) 252-4411 HC IAAD IA HEPATITIS B SURFACE ANTIGEN CDM | $132.60 | $260.00 | — | 49% | Apr 1, 2026 source file |
| Providence Queen of the Valley Medical Center Napa, CA · (707) 252-4411 HC IAAD IA HEPATITIS B SURFACE ANTIGEN LAB | $132.60 | $260.00 | — | 49% | Apr 1, 2026 source file |
Outpatient: lowest $28.05, median $28.05, highest $28.05.
As an inpatient, the same code is billed by 1 facility here, median $28.05. 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 hepatitis B surface antigen test shows whether the hepatitis B virus is present in the blood now. The CDC recommends screening all adults at least once and every pregnant woman in each pregnancy.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.
1 row held back from this comparison
It is priced below $1 or below a tenth of the national median for code 87340 ($57.00). 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 IAAD IA HEPATITIS B SURFACE ANTIGEN LAB | $3.34 | file |