RSV antibody shot (100 mg dose) cost in San Francisco, CA
In San Francisco-Oakland-Fremont, CA, 12 hospitals list a cash price for RSV antibody shot for infants and toddlers, larger dose (1 mL, 100 mg): from $365.68 to $3,418.04, with a median of $365.68. The lowest listed price is at Kaiser Foundation Hospital - South San Francisco and 8 other hospitals. Across California, the median is $923.23 at 69 hospitals.
Cash prices at 12 facilities across 10 cities for code 90381, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Jul 22, 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 San Francisco-Oakland-Fremont, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Kaiser Foundation Hospital - South San Francisco lowest South San Francisco, CA · (650) 742-3200 RSV MONOCLONAL ANTB SEASONAL DOSE 1 ML IM USE | $365.68 | $653.00 | — | 44% | — source file |
| Kaiser Foundation Hospital - Fremont lowest Fremont, CA · (510) 784-4000 RSV MONOCLONAL ANTB SEASONAL DOSE 1 ML IM USE | $365.68 | $653.00 | — | 44% | — source file |
| Kaiser Foundation Hospital - Oakland/Richmond lowest Oakland, CA · (510) 752-1000 RSV MONOCLONAL ANTB SEASONAL DOSE 1 ML IM USE | $365.68 | $653.00 | — | 44% | — source file |
| Kaiser Foundation Hospital - San Rafael lowest San Rafael, CA · (415) 444-2000 RSV MONOCLONAL ANTB SEASONAL DOSE 1 ML IM USE | $365.68 | $653.00 | — | 44% | — source file |
| Kaiser Foundation Hospital - San Leandro lowest San Leandro, CA · (510) 454-1000 RSV MONOCLONAL ANTB SEASONAL DOSE 1 ML IM USE | $365.68 | $653.00 | — | 44% | — source file |
| Kaiser Foundation Hospital - Walnut Creek lowest Walnut Creek, CA · (925) 295-4000 RSV MONOCLONAL ANTB SEASONAL DOSE 1 ML IM USE | $365.68 | $653.00 | — | 44% | — source file |
| Kaiser Foundation Hospital - Antioch lowest Antioch, CA · (925) 813-6500 RSV MONOCLONAL ANTB SEASONAL DOSE 1 ML IM USE | $365.68 | $653.00 | — | 44% | — source file |
| Kaiser Foundation Hospital - San Francisco lowest San Francisco, CA · (415) 833-2646 RSV MONOCLONAL ANTB SEASONAL DOSE 1 ML IM USE | $365.68 | $653.00 | — | 44% | — source file |
| Kaiser Foundation Hospital - Redwood City lowest Redwood City, CA · (650) 299-2000 RSV MONOCLONAL ANTB SEASONAL DOSE 1 ML IM USE | $365.68 | $653.00 | — | 44% | — source file |
| Kaiser Foundation Hospital - San Francisco San Francisco, CA · (415) 833-2646 nirsevimab-alip 100 mg/mL Syringe 1 mL SYRINGE | $1,042.49 | $1,861.59 | — | 44% | — source file |
| Kaiser Foundation Hospital - Antioch Antioch, CA · (925) 813-6500 nirsevimab-alip 100 mg/mL Syringe 1 mL SYRINGE | $1,042.49 | $1,861.59 | — | 44% | — source file |
| Kaiser Foundation Hospital - San Leandro San Leandro, CA · (510) 454-1000 nirsevimab-alip 100 mg/mL Syringe 1 mL SYRINGE | $1,042.49 | $1,861.59 | — | 44% | — source file |
| Kaiser Foundation Hospital - Walnut Creek Walnut Creek, CA · (925) 295-4000 nirsevimab-alip 100 mg/mL Syringe 1 mL SYRINGE | $1,042.49 | $1,861.59 | — | 44% | — source file |
| Kaiser Foundation Hospital - Oakland/Richmond Oakland, CA · (510) 752-1000 nirsevimab-alip 100 mg/mL Syringe 1 mL SYRINGE | $1,042.49 | $1,861.59 | — | 44% | — source file |
| Kaiser Foundation Hospital - San Rafael San Rafael, CA · (415) 444-2000 nirsevimab-alip 100 mg/mL Syringe 1 mL SYRINGE | $1,042.49 | $1,861.59 | — | 44% | — source file |
| Kaiser Foundation Hospital - South San Francisco South San Francisco, CA · (650) 742-3200 nirsevimab-alip 100 mg/mL Syringe 1 mL SYRINGE | $1,042.49 | $1,861.59 | — | 44% | — source file |
| Kaiser Foundation Hospital - Redwood City Redwood City, CA · (650) 299-2000 nirsevimab-alip 100 mg/mL Syringe 1 mL SYRINGE | $1,042.49 | $1,861.59 | — | 44% | — source file |
| Kaiser Foundation Hospital - Fremont Fremont, CA · (510) 784-4000 nirsevimab-alip 100 mg/mL Syringe 1 mL SYRINGE | $1,042.49 | $1,861.59 | — | 44% | — source file |
| Sequoia Hospital Redwood City, CA · (650) 369-5811 NRSVMAB-ALIP 100MG/1MLINJ | $1,729.73 | $4,752.00 | $1,188.00–$4,752.00 | 64% | Feb 28, 2026 source file |
| Chinese Hospital San Francisco, CA · (415) 677-2480 Respiratory syncytial virus antibody, 1.0 mL dosage for injection into muscle | $1,829.00 | $1,829.00 | $746.60–$3,292.20 | — | Jul 22, 2026 source file |
| Stanford Health Care Tri-Valley Pleasanton, CA · (925) 847-3000 NIRSEVIMAB-ALIP 100 MG/ML IM SYRG | $3,418.04 | $8,545.09 | — | 60% | Apr 1, 2026 source file |
Outpatient: lowest $365.68, median $365.68, highest $3,418.04 — a 9.3× difference within the same market.
As an inpatient, the same code is billed by 11 facilities here, median $365.68. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 2 of 2 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
This is the larger dose (100 mg) of nirsevimab (Beyfortus), an antibody shot that protects infants from severe RSV. Babies weighing 5 kg (11 lb) or more in their first RSV season get this dose, and high-risk toddlers get two of them in their second season.
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, 90472 for each additional one).