Vitamin D test cost in Napa, CA
In Napa, CA, 1 hospital lists a cash price for Vitamin D blood test, 25-hydroxy (the standard vitamin D level test): from $84.53 to $84.53, with a median of $84.53. Across California, the median is $63.96 at 100 hospitals.
Cash prices at 1 facility for code 82306, 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.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Napa, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| St Joseph Health Northern California LLC lowest Napa, CA HC 25 HYDROXY INCLUDES FRACTIONS IF PERFORMED LAB | $84.53 | $165.75 | — | 49% | Apr 1, 2026 source file |
| St Joseph Health Northern California LLC Napa, CA HC 25 HYDROXY INCLUDES FRACTIONS IF PERFORMED CDM | $256.53 | $503.00 | — | 49% | Apr 1, 2026 source file |
Outpatient: lowest $84.53, median $84.53, highest $84.53.
As an inpatient, the same code is billed by 1 facility here, median $84.53. 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
This blood test measures 25-hydroxy vitamin D, the form doctors use to judge whether the body has enough vitamin D. It is ordered to check for deficiency, for example with bone loss, certain digestive conditions or while taking supplements.
What the price covers
The price usually covers the vitamin D test only. The blood draw is often billed separately.
1 row held back from this comparison
It is priced below $1 or below a tenth of the national median for code 82306 ($112.00). 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.
| St Joseph Health Northern California LLC Napa, CAHC 25 HYDROXY INCLUDES FRACTIONS IF PERFORMED CDM | $9.18 | file |