Hepatitis B test cost in Baltimore, MD
In Baltimore-Columbia-Towson, MD, 2 hospitals list a cash price for hepatitis B surface antigen (HBsAg) test: from $80.06 to $92.37, with a median of $86.22. The lowest listed price is at Mercy Medical Center — $6.16 less than the median here. Across Maryland, the median is $78.25 at 5 hospitals.
Cash prices at 2 facilities for code 87340, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 22, 2026; the hospital files themselves were last updated between — and —.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Baltimore-Columbia-Towson, MD.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Mercy Medical Center lowest Baltimore, MD · (410) 332-9237 HC IAAD IA HEPATITIS B SURFACE ANTIGEN REF | $80.06 | $81.69 | $81.69–$80.06 | 2% | — source file |
| Mercy Medical Center lowest Baltimore, MD · (410) 332-9237 HC IAAD IA HEPATITIS B SURFACE ANTIGEN | $80.06 | $81.69 | $81.69–$80.06 | 2% | — source file |
| Mt. Washington Pediatric Hospital Baltimore, MD · (410) 578-5050 Hep B Surface Antigen EIA | $92.37 | $94.25 | $92.37–$94.25 | 2% | — source file |
Outpatient: lowest $80.06, median $86.22, highest $92.37 — a 1.2× difference within the same market.
As an inpatient, the same code is billed by 2 facilities here, median $86.22. 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 2 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 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 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.