AST liver test cost in San Antonio, TX — inpatient
In San Antonio-New Braunfels, TX, 1 hospital lists a cash price for AST (aspartate aminotransferase) enzyme test as an inpatient: from $19.00 to $19.00, with a median of $19.00. Across Texas, the median is $45.00 at 100 hospitals.
Cash prices at 1 facility for code 84450, as an inpatient (admitted to hospital) . Collected Sep 24, 2026; the hospital files themselves were last updated between Oct 14, 2025 and Oct 14, 2025.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| University Health System San Antonio, TX · (210) 358-2000 HC TRANSFERASE ASPARTATE AMINO (AST) (SGOT) - AST | $19.00 | $76.00 | $28.12–$64.60 | 75% | Oct 14, 2025 source file |
Inpatient: lowest $19.00, median $19.00, highest $19.00.
As an outpatient, the same code is billed by 2 facilities here, median $19.40 — that is the price to compare if you are not being admitted.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated and 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
AST is an enzyme found in the liver, muscles and heart. It is measured together with ALT to look for liver injury, and the ratio between them gives clues to the cause.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.