Tdap vaccine cost in St. Louis, MO — inpatient
In St. Louis, MO-IL, 6 hospitals list a cash price for Tdap vaccine (tetanus, diphtheria and whooping cough), age 7 and older as an inpatient: from $56.25 to $210.12, with a median of $167.18. The lowest listed price is at Mercy Hospital Lincoln and 1 other hospital — $110.93 less than the median here. Across Missouri, the median is $122.96 at 26 hospitals.
Cash prices at 6 facilities across 6 cities for code 90715, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Jun 12, 2026 and Jun 12, 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 St. Louis, MO-IL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Mercy Hospital Lincoln lowest Elsberry, MO Tdap Vaccine 7 Yrs/> Im | $56.25 | $75.00 | $37.50–$67.50 | 25% | Jun 12, 2026 source file |
| Mercy Hospital Lincoln lowest Elsberry, MO Tdap Vaccine 7 Yrs/> Im | $56.25 | $75.00 | $37.50–$67.50 | 25% | Jun 12, 2026 source file |
| Mercy Hospital Lincoln lowest Elsberry, MO Tdap Vaccine 7 Yrs/> Im | $56.25 | $75.00 | $37.50–$67.50 | 25% | Jun 12, 2026 source file |
| Mercy Hospital Lincoln lowest Elsberry, MO Tdap Vaccine 7 Yrs/> Im | $56.25 | $75.00 | $37.50–$67.50 | 25% | Jun 12, 2026 source file |
| Mercy Hospital Lincoln lowest Elsberry, MO Tdap Vaccine 7 Yrs/> Im | $56.25 | $75.00 | $37.50–$67.50 | 25% | Jun 12, 2026 source file |
| Mercy Hospitals East Communities lowest Washington, MO Tdap Vaccine 7 Yrs/> Im | $56.25 | $75.00 | $37.50–$67.50 | 25% | Jun 12, 2026 source file |
| St Elizabeths Hospital of the Hospital Sisters of the Third Order of St Francis O'Fallon, IL TDAP 5-2.5-18.5 LF-MCG/0.5 SUSY per 0.5 mL | $167.18 | $232.20 | $18.42–$232.20 | 28% | — source file |
| St Josephs Hospital Hospital Sisters Third Order of St Francis Breese, IL · (618) 526-4511 TDAP VACCINE 7 YRS/> IM | $167.18 | $232.20 | $18.42–$232.20 | 28% | — source file |
| Hshs Holy Family Hospital Greenville, IL · (618) 664-1230 TDAP 5-2.5-18.5 LF-MCG/0.5 SUSY per 0.5 mL | $167.40 | $232.50 | $19.34–$232.50 | 28% | — source file |
| Gateway Regional Medical Center Granite City, IL · (618) 798-3000 DIPH/TET/ACPERT .5ML | $210.12 | $350.20 | $350.20 | 40% | — source file |
Inpatient: lowest $56.25, median $167.18, highest $210.12 — a 3.7× difference within the same market.
As an outpatient, the same code is billed by 11 facilities here, median $158.70 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 6 of 6 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
Tdap protects against tetanus, diphtheria and whooping cough (pertussis). Adults who never had it get one dose, pregnant women get one in each pregnancy, and it can replace a tetanus booster.
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).