Flu shot, recombinant (Flublok) cost in Boston, MA
In Boston-Cambridge-Newton, MA-NH, 10 hospitals list a cash price for flu shot, recombinant, egg-free (Flublok): from $42.70 to $381.21, with a median of $176.00. The lowest listed price is at Signature Healthcare Brockton Hospital — $133.30 less than the median here. Across Massachusetts, the median is $221.01 at 6 hospitals.
Cash prices at 10 facilities across 9 cities for code 90673, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Jan 28, 2026 and Sep 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 Boston-Cambridge-Newton, MA-NH.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Signature Healthcare Brockton Hospital lowest Brockton, MA · (508) 941-7000 FLU VACC 18+/PF EGG FREE 0.5ML File of Jan 28, 2026 · source file | $42.70 | $61.00 | $22.57–$120.25 | 30% |
| Boston Medical Center Boston, MA · (617) 638-8000 HC Influenza Virus Vaccine Trivalen Riv3 Prsr Fr Im source file | $57.15 | $127.00 | $38.48–$512.54 | 55% |
| Seabrook Emergency Seabrook, NH · (603) 436-5110 FLUBLOK TRI PF IM+1 more line at this price File of Sep 1, 2026 · source file | $83.00 | $83.00 | $3.42–$423.56 | — |
| Portsmouth Regional Hospital Portsmouth, NH · (603) 436-5110 FLUBLOK TRI PF IM+1 more line at this price File of Sep 1, 2026 · source file | $83.00 | $83.00 | $3.42–$423.56 | — |
| Dover Emergency Room Dover, NH · (603) 436-5110 Influenza virus vaccine, trivalent (RIV3), derived from recombinant DNA, hemagglutinin (HA) protein only, preservative and antibiotic free, for intramuscular use +1 more line at this price File of Sep 1, 2026 · source file | $83.00 | $83.00 | $3.42–$423.56 | — |
| Plaistow Fser Plaistow, NH · (603) 421-2100 FLUBLOK TRI PF IM+1 more line at this price File of Sep 1, 2026 · source file | $269.00 | $269.00 | $8.31–$266.85 | — |
| Parkland Medical Center Derry, NH · (603) 421-2100 Influenza virus vaccine, trivalent (RIV3), derived from recombinant DNA, hemagglutinin (HA) protein only, preservative and antibiotic free, for intramuscular use +1 more line at this price File of Sep 1, 2026 · source file | $269.00 | $269.00 | $8.31–$266.85 | — |
| Melrosewakefield Healthcare Melrose, MA · (781) 979-3000 HC Pbb Riv3 Vaccine Preservative Free for Im Use source file | $381.21 | $544.59 | $39.25–$588.87 | 30% |
| Tufts Medical Center Boston, MA · (617) 636-5000 HC Pbb Riv3 Vaccine Preservative Free for Im Use source file | $381.21 | $544.59 | $39.56–$544.59 | 30% |
| Lowell General Hospital Lowell, MA · (978) 937-6000 HC Pbb Riv3 Vaccine Preservative Free for Im Use source file | $381.21 | $544.59 | $37.26–$544.59 | 30% |
Outpatient: lowest $42.70, median $176.00, highest $381.21 — a 8.9× difference within the same market.
As an inpatient, the same code is billed by 5 facilities here, median $381.21. 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 6 of 10 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 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
Flublok is a recombinant flu vaccine made without eggs. The CDC prefers it, the high-dose and the adjuvanted flu shots for people 65 and older.
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).