Insulin test cost in Napa, CA
In Napa, CA, 1 hospital lists a cash price for insulin blood test: from $13.80 to $13.80, with a median of $13.80. Across California, the median is $66.64 at 83 hospitals.
Cash prices at 1 facility for code 83525, 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 Apr 1, 2026.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Providence Queen of the Valley Medical Center Napa, CA · (707) 252-4411 HC INSULIN LEVEL ASSAY | $13.80 | $27.05 | — | 49% | Apr 1, 2026 source file |
Outpatient: lowest $13.80, median $13.80, highest $13.80.
As an inpatient, the same code is billed by 1 facility here, median $13.80. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
What it is
An insulin test measures insulin in the blood. It is used to investigate low blood sugar and sometimes to estimate insulin resistance.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.
1 row held back from this comparison
It is priced below $1 or below a tenth of the national median for code 83525 ($51.60). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| Providence Queen of the Valley Medical Center Napa, CAHC ASSAY OF INSULIN TOTAL LAB | $3.06 | file |