Hepatitis B test cost in Buffalo, NY — inpatient
In Buffalo-Cheektowaga, NY, 5 hospitals list a cash price for hepatitis B surface antigen (HBsAg) test as an inpatient: from $10.33 to $44.03, with a median of $10.33. The lowest listed price is at Mercy Hospital of Buffalo and 2 other hospitals. Across New York, the median is $33.58 at 64 hospitals.
Cash prices at 5 facilities across 2 cities for code 87340, as an inpatient (admitted to hospital) . 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 |
|---|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| 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) | $72.89 | $72.89 | — | — | Apr 1, 2026 source file |
| Roswell Park Cancer Institute Buffalo, NY Hepatitis B Surf Ag (Hbsag)Con | $72.89 | $72.89 | — | — | Apr 1, 2026 source file |
Inpatient: lowest $10.33, median $10.33, highest $44.03 — a 4.3× difference within the same market.
As an outpatient, the same code is billed by 6 facilities here, median $13.29 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 4 of 4 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.