RSV antibody shot (100 mg dose) cost in Seattle, WA — inpatient
In Seattle-Tacoma-Bellevue, WA, 8 hospitals list a cash price for RSV antibody shot for infants and toddlers, larger dose (1 mL, 100 mg) as an inpatient: from $277.95 to $2,122.75, with a median of $757.36. The lowest listed price is at Virginia Mason Medical Center — $479.41 less than the median here. Across Washington, the median is $705.13 at 17 hospitals.
Cash prices at 8 facilities across 7 cities for code 90381, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Jan 1, 2026 and Mar 31, 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 Seattle-Tacoma-Bellevue, WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Virginia Mason Medical Center lowest Seattle, WA · (206) 223-6600 INJ, NIRSEVIMAB-ALIP (BEYFORTUS) PF 100MG/ML (STATE SUPP) File of Jan 1, 2026 · source file | $277.95 | $545.00 | $349.07–$436.00 | 49% |
| Virginia Mason Medical Center Seattle, WA · (206) 223-6600 INJ, NIRSEVIMAB-ALIP (CVX 307) (BEYFORTUS) PF 100MG/ML File of Jan 1, 2026 · source file | $489.75 | $960.30 | $615.07–$768.24 | 49% |
| Saint Clare Hospital Lakewood, WA · (253) 588-1711 NIRSEVIMAB-ALIP 100 MG/ML INTRAMUSCULAR SYRINGE File of Feb 28, 2026 · source file | $705.13 | $2,446.30 | $1,345.47–$1,834.73 | 71% |
| St Anthony Hospital Gig Harbor, WA · (253) 530-2050 NIRSEVIMAB-ALIP 100 MG/ML INTRAMUSCULAR SYRINGE File of Feb 28, 2026 · source file | $744.04 | $2,446.30 | $1,345.47–$1,834.73 | 70% |
| Highline Medical Center Burien, WA · (206) 431-5237 NIRSEVIMAB-ALIP 100 MG/ML INTRAMUSCULAR SYRINGE File of Feb 28, 2026 · source file | $747.00 | $2,446.30 | $1,051.91–$2,201.67 | 69% |
| St Francis Community Hospital Federal Way, WA · (253) 944-8100 NIRSEVIMAB-ALIP 100 MG/ML INTRAMUSCULAR SYRINGE File of Feb 28, 2026 · source file | $767.71 | $2,446.30 | $1,345.47–$1,834.73 | 69% |
| St Joseph Medical Center Tacoma, WA · (253) 627-4101 NIRSEVIMAB-ALIP 100 MG/ML INTRAMUSCULAR SYRINGE File of Feb 28, 2026 · source file | $810.21 | $2,446.30 | $1,345.47–$1,834.73 | 67% |
| Virginia Mason Medical Center Seattle, WA · (206) 223-6600 INJ, NIRSEVIMAB-ALIP (BEYFORTUS) PF 100MG/ML (NON-STATE) File of Jan 1, 2026 · source file | $821.10 | $1,610.00 | $1,031.20–$1,288.00 | 49% |
| St Elizabeth Hospital Enumclaw, WA · (360) 825-2505 NIRSEVIMAB-ALIP 100 MG/ML INTRAMUSCULAR SYRINGE File of Feb 28, 2026 · source file | $864.44 | $2,446.30 | $684.97–$2,201.67 | 65% |
| Seattle Children's Hospital Seattle, WA · (206) 987-2000 NIRSEVIMAB-ALIP 100 MG/ML INTRAMUSCULAR SYRINGE File of Mar 31, 2026 · source file | $2,122.75 | $2,122.75 | $534.93–$2,037.84 | — |
| Seattle Children's Hospital Seattle, WA · (206) 987-2000 NIRSEVIMAB-ALIP 200 MG IM INJECTION File of Mar 31, 2026 · source file | $4,205.45 | $4,205.45 | $1,059.77–$4,037.23 | — |
Inpatient: lowest $277.95, median $757.36, highest $2,122.75 — a 7.6× difference within the same market.
As an outpatient, the same code is billed by 8 facilities here, median $757.36 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 7 of 8 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 6 it is 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).
8 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 90381 ($980.10). 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.
| Hospital | Cash price | File |
|---|---|---|
| Valley Medical Center Renton, WARsv Monoclonal Antb Seasonal Dose 1 Ml Im Use | $0.01 | file |
| St Anthony Hospital Gig Harbor, WANIRSEVIMAB-ALIP 100 MG/ML INTRAMUSCULAR SYRINGE (STATE FREE) | $0.02 | file |
| Highline Medical Center Burien, WANIRSEVIMAB-ALIP 100 MG/ML INTRAMUSCULAR SYRINGE (STATE FREE) | $0.02 | file |
| St Elizabeth Hospital Enumclaw, WANIRSEVIMAB-ALIP 100 MG/ML INTRAMUSCULAR SYRINGE (STATE FREE) | $0.02 | file |
| St Joseph Medical Center Tacoma, WANIRSEVIMAB-ALIP 100 MG/ML INTRAMUSCULAR SYRINGE (STATE FREE) | $0.02 | file |
| Saint Clare Hospital Lakewood, WANIRSEVIMAB-ALIP 100 MG/ML INTRAMUSCULAR SYRINGE (STATE FREE) | $0.02 | file |
| St Francis Community Hospital Federal Way, WANIRSEVIMAB-ALIP 100 MG/ML INTRAMUSCULAR SYRINGE (STATE FREE) | $0.02 | file |
| Virginia Mason Medical Center Seattle, WAINJ, NIRSEVIMAB-ALIP (BEYFORTUS) PF 100MG/ML (DSHS) | $11.95 | file |