Hepatitis B test cost in Buffalo, NY
In Buffalo-Cheektowaga, NY, 6 hospitals list a cash price for hepatitis B surface antigen (HBsAg) test: from $10.33 to $44.03, with a median of $13.29. The lowest listed price is at Mount St. Mary's Hospital and 2 other hospitals — $2.96 less than the median here. Across New York, the median is $33.58 at 64 hospitals.
Cash prices at 6 facilities across 3 cities 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 Aug 25, 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 Buffalo-Cheektowaga, NY.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Mount St. Mary's Hospital lowest Lewiston, NY · (716) 297-4800 HC Iaad Ia Hepatitis B Surface Antigen - Hepatitis B Surface Antigen | $10.33 | $28.00 | $7.75–$28.00 | 63% | — source file |
| Mercy Hospital of Buffalo lowest Buffalo, NY · (716) 826-7000 HC Iaad Ia Hepatitis B Surface Antigen - Hepatitis B Surface Antigen | $10.33 | $28.00 | $7.75–$28.00 | 63% | — source file |
| Sisters of Charity Hospital lowest Buffalo, NY · (716) 862-1000 HC Iaad Ia Hepatitis B Surface Antigen - Hepatitis B Surface Antigen | $10.33 | $28.00 | $7.75–$28.00 | 63% | — source file |
| Roswell Park Cancer Institute Buffalo, NY Hep B Surf Ag Rflx Conf | $16.25 | $16.25 | — | — | Apr 1, 2026 source file |
| Niagara Falls Memorial Medical Center Niagara Falls, NY · (716) 278-4000 DETECTION TEST BY IMMUNOASSAY TECHNIQUE FOR HEPATITIS B SURFACE ANTIGEN | $29.72 | $42.46 | $9.81–$14.08 | 30% | — source file |
| Niagara Falls Memorial Medical Center Niagara Falls, NY · (716) 278-4000 HEPATITIS B SURFACE AG IA | $38.42 | $54.89 | $9.81–$14.08 | 30% | — source file |
| Erie County Medical Center Buffalo, NY · (716) 898-3936 HEPATITIS B SURFACE ANTIGEN | $44.03 | $101.05 | $7.75–$90.94 | 56% | Aug 25, 2026 source file |
| Roswell Park Cancer Institute Buffalo, NY Hepatitis B Surf Ag (Hbsag)Con | $72.89 | $72.89 | — | — | Apr 1, 2026 source file |
| Roswell Park Cancer Institute Buffalo, NY Hepatitis B Surf Ag (Hbsag) | $72.89 | $72.89 | — | — | Apr 1, 2026 source file |
Outpatient: lowest $10.33, median $13.29, highest $44.03 — a 4.3× difference within the same market.
As an inpatient, the same code is billed by 5 facilities here, median $10.33. 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 4 of 5 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 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.