Hepatitis B test cost in California

In California, 197 hospitals publish a cash price for hepatitis B surface antigen (HBsAg) test: from $5.00 to $258.00, with a median of $71.76. The lowest price is at Childrens Hospital at Mission - Cerner (Mission Viejo). The highest price is 51.6× the lowest.

• The median here, $71.76, is 17% above the US median of $61.20.
• That is 6.9× Medicare's 2026 national rate for the same service ($10.33).
• California ranks 32nd of 49 states by median, cheapest first.
• 63 of 197 hospitals list a cash price equal to their full list price, with no self-pay discount.

California law (Health and Safety Code §127405): if you are uninsured or have high medical costs and your family income is at or below 400% of the federal poverty level, a hospital may not expect you to pay more than it would expect from Medicare or Medi-Cal, whichever is greater. That can be less than the cash prices below; ask the hospital for its discount payment policy. A separate physician fee may still apply. Other states' laws.

Outpatient cash prices, one line per hospital — its lowest listed price for code 87340. Prices for both sides of the body and inpatient prices are not mixed in. Collected Nov 7, 2026. See them on a map