Vitamin D test cost in Napa, CA — inpatient
In Napa, CA, 1 hospital lists a cash price for vitamin D blood test, 25-hydroxy (the standard vitamin D level test) as an inpatient: 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 inpatient (admitted to hospital) . 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 |
|---|---|---|---|---|---|
| St Joseph Health Northern California LLC Napa, CA HC 25 HYDROXY INCLUDES FRACTIONS IF PERFORMED LAB | $84.53 | $165.75 | — | 49% | Apr 1, 2026 source file |
Inpatient: lowest $84.53, median $84.53, highest $84.53.
As an outpatient, the same code is billed by 1 facility here, median $84.53 — that is the price to compare if you are not being admitted.
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 |