Ammonia test cost in Willows, CA
In Willows, CA, 1 hospital lists a cash price for ammonia blood test: from $73.08 to $73.08, with a median of $73.08. Across California, the median is $180.96 at 206 hospitals.
Cash prices at 1 facility for code 82140, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Oct 4, 2025 and Oct 4, 2025.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| American Advanced - Glenn Medical Center Willows, CA · (530) 934-1818 AMMONIA | $73.08 | $121.80 | $16.71–$115.71 | 40% | Oct 4, 2025 source file |
Outpatient: lowest $73.08, median $73.08, highest $73.08.
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. 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
An ammonia test measures ammonia in the blood. It is used for confusion or drowsiness in people with liver disease and for some rare inherited disorders in newborns.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.