Folate test cost in Ontario, CA — inpatient
In Ontario, CA, 1 hospital lists a cash price for folate (folic acid) blood test as an inpatient: from $47.32 to $47.32, with a median of $47.32. Across California, the median is $90.00 at 100 hospitals.
Cash prices at 1 facility for code 82746, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between — and —.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Kaiser Foundation Hospital - Ontario Ontario, CA ASSAY OF FOLIC ACID SERUM | $47.32 | $91.00 | $10.00–$30.00 | 48% | — source file |
Inpatient: lowest $47.32, median $47.32, highest $47.32.
As an outpatient, the same code is billed by 1 facility here, median $47.32 — 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 not below the highest rate a health plan has negotiated. 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
A folate test measures folic acid in the blood. It is ordered for anemia with large red blood cells, usually together with a vitamin B12 test (82607).
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.