Flu shot cost in Vallejo, CA
In Vallejo, CA, 3 hospitals list a cash price for flu shot, standard dose, preservative-free, for age 6 months and older: from $33.60 to $34.10, with a median of $33.60. The lowest listed price is at Kaiser Foundation Hospital - Vacaville and 1 other hospital. Across California, the median is $33.60 at 66 hospitals.
Cash prices at 3 facilities across 3 cities for code 90656, 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 Vallejo, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Kaiser Foundation Hospital - Vacaville lowest Vacaville, CA · (707) 624-4000 IIV3 VACC PRESERVATIVE FREE 0.5 ML DOSAGE IM USE | $33.60 | $60.00 | — | 44% | — source file |
| Kaiser Foundation Hospital & Rehab Center - Vallejo lowest Vallejo, CA · (707) 651-1000 IIV3 VACC PRESERVATIVE FREE 0.5 ML DOSAGE IM USE | $33.60 | $60.00 | — | 44% | — source file |
| NorthBay Medical Center Fairfield, CA · (707) 646-5000 *Fluarix 0.5Ml Trivalent | $34.10 | $34.10 | — | — | Apr 1, 2026 source file |
| NorthBay Medical Center Fairfield, CA · (707) 646-5000 *Fluarix 0.5Ml Trivalent | $34.10 | $34.10 | — | — | Apr 1, 2026 source file |
| NorthBay Medical Center Fairfield, CA · (707) 646-5000 *Fluzone 0.5Ml Trivalent | $35.77 | $35.77 | — | — | Apr 1, 2026 source file |
| NorthBay Medical Center Fairfield, CA · (707) 646-5000 *Fluzone 0.5Ml Trivalent | $35.77 | $35.77 | — | — | Apr 1, 2026 source file |
| Kaiser Foundation Hospital & Rehab Center - Vallejo Vallejo, CA · (707) 651-1000 flu vaccine TS 2025-26 (6 mos up) PF 45 mcg (15 mcg x 3)/0.5 mL Syringe 0.5 mL SYRINGE | $47.90 | $85.54 | — | 44% | — source file |
| Kaiser Foundation Hospital - Vacaville Vacaville, CA · (707) 624-4000 flu vaccine TS 2025-26 (6 mos up) PF 45 mcg (15 mcg x 3)/0.5 mL Syringe 0.5 mL SYRINGE | $47.90 | $85.54 | — | 44% | — source file |
| Kaiser Foundation Hospital - Vacaville Vacaville, CA · (707) 624-4000 flu vaccine TS 2025-26 (36 mos up) PF 45 mcg (15 mcg x 3)/0.5 mL Syringe 0.5 mL SYRINGE | $52.33 | $93.45 | — | 44% | — source file |
| Kaiser Foundation Hospital & Rehab Center - Vallejo Vallejo, CA · (707) 651-1000 flu vaccine TS 2025-26 (36 mos up) PF 45 mcg (15 mcg x 3)/0.5 mL Syringe 0.5 mL SYRINGE | $52.33 | $93.45 | — | 44% | — source file |
Outpatient: lowest $33.60, median $33.60, highest $34.10.
As an inpatient, the same code is billed by 3 facilities here, median $33.60. 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
A standard-dose flu shot protects against the influenza strains expected in the coming season, and the formula changes every year. This code is the preservative-free version given to most people.
What the price covers
The price is for the vaccine dose. Giving the shot is usually a separate line (code 90471 for the first vaccine of the visit); Medicare bills use G0008 instead.