Vitamin B12 test cost in Napa, CA
In Napa, CA, 1 hospital lists a cash price for Vitamin B12 (cobalamin) blood test: from $40.88 to $40.88, with a median of $40.88. Across California, the median is $79.28 at 101 hospitals.
Cash prices at 1 facility for code 82607, 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 VITAMIN-B12 | $40.88 | $80.15 | — | 49% | Apr 1, 2026 source file |
| St Joseph Health Northern California LLC Napa, CA HC VITAMIN-B12 | $135.66 | $266.00 | — | 49% | Apr 1, 2026 source file |
Outpatient: lowest $40.88, median $40.88, highest $40.88.
As an inpatient, the same code is billed by 1 facility here, median $40.88. 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 the level of vitamin B12, which the body needs for red blood cells and nerves. It is ordered to look into anemia, numbness or tingling, memory problems, or conditions and medicines that lower B12 absorption.
What the price covers
The price usually covers the B12 test only. The blood draw is often billed separately, and folate (82746) or follow-up tests are separate codes.