IV infusion cost in St. Louis, MO
In St. Louis, MO-IL, 16 hospitals list a cash price for IV infusion of a medicine, first hour: from $110.50 to $781.05, with a median of $409.18. The lowest listed price is at Mercy Hospital South — $298.68 less than the median here. Across Missouri, the median is $287.48 at 64 hospitals.
- The median here, $409.18, is 8% above the US median of $377.63.
- That is 1.9× Medicare's 2026 national rate for the same service ($217.31).
- St. Louis, MO ranks 2nd of 2 metro areas in Missouri by median, cheapest first.
- 2 of 16 hospitals list a cash price equal to their full list price, with no self-pay discount.
Cash prices at 16 facilities across 14 cities for code 96365, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 6, 2026 and Jun 10, 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 |
|---|---|---|---|---|
| Mercy Hospital South lowest Saint Louis, MO · (314) 525-1000 IV Infusion,Tx,Proph,Dx Init Up to 1 Hr File of Jun 10, 2026 · source file | $110.50 | $170.00 | $209.00–$479.35 | 35% |
| Carlinville Area Hospital Carlinville, IL · (217) 854-3141 IV INFUSION DIAGNOSTIC UP TO ONE HOUR File of Mar 21, 2026 · source file | $112.70 | $161.00 | $57.96–$230.00 | 30% |
| Jersey Community Hospital Jerseyville, IL · (618) 498-6402 96365 Intravenous infusion, for therapy, prophylaxis, or diagnosis (specify substance or drug); ini File of Mar 10, 2026 · source file | $175.00 | $175.00 | $60.00–$468.00 | — |
| Mercy Hospital Lincoln Troy, MO · (636) 528-8551 IV Infusion,Tx,Proph,Dx Init Up to 1 Hr File of Jun 10, 2026 · source file | $185.90 | $286.00 | $248.98–$276.60 | 35% |
| Community Hospital of Staunton Staunton, IL · (618) 635-2200 IV INFUSION 1ST HOUR File of Feb 9, 2026 · source file | $193.50 | $387.00 | $111.89–$352.17 | 50% |
| Touchette Regional Hospital Cahokia Heights, IL · (618) 332-3060 Intravenous infusion, for therapy, prophylaxis, or diagnosis (specify substance or drug); initial, up to 1 hour File of Apr 13, 2026 · source file | $285.20 | $460.00 | $207.00–$460.00 | 38% |
| Hshs Holy Family Hospital Greenville, IL · (618) 664-1230 HC INFUSION THERAPY 1ST HOUR File of Mar 24, 2026 · source file | $303.12 | $421.00 | $117.88–$569.84 | 28% |
| Carlinville Area Hospital Carlinville, IL · (217) 854-3141 IV INF DX OR THERAPUTIC UP TO ONE HOUR+2 more lines at this price File of Mar 21, 2026 · source file | $354.20 | $506.00 | $182.16–$722.86 | 30% |
| Mercy Hospital St Louis Saint Louis, MO · (314) 251-6000 IV Infusion,Tx,Proph,Dx Init Up to 1 Hr File of Jun 4, 2026 · source file | $385.45 | $593.00 | $38.55–$593.00 | 35% |
| Anderson Hospital Maryville, IL · (618) 288-5711 IV INFUSION 1ST HOUR File of Feb 6, 2026 · source file | $432.90 | $865.80 | $74.12–$1,050.00 | 50% |
| Mercy Hospital Washington Washington, MO · (636) 239-8000 IV Infusion,Tx,Proph,Dx Init Up to 1 Hr File of Jun 10, 2026 · source file | $542.10 | $834.00 | $209.00–$266.31 | 35% |
| St Josephs Hospital of the Hospital Sisters of the Third Order of St Francis Highland, IL · (618) 651-2600 HC INFUSION THERAPY 1ST HOUR File of Mar 24, 2026 · source file | $551.52 | $766.00 | $153.20–$766.00 | 28% |
| Mercy Hospital Jefferson Festus, MO · (636) 933-1000 IV Infusion,Tx,Proph,Dx Init Up to 1 Hr File of Jun 10, 2026 · source file | $565.50 | $870.00 | $209.00–$479.35 | 35% |
| Mercy Hospital Washington Washington, MO · (636) 239-8000 IV Infusion Tx Up to 1 Hr File of Jun 10, 2026 · source file | $567.45 | $873.00 | $209.00–$266.31 | 35% |
| Jersey Community Hospital Jerseyville, IL · (618) 498-6402 96365 - IV INFUSION THERAPY/PROPHYLAXIS /DX 1ST <1 HOUR+3 more lines at this price File of Mar 10, 2026 · source file | $574.00 | $574.00 | $181.00–$487.90 | — |
| St Josephs Hospital Hospital Sisters Third Order of St Francis Breese, IL · (618) 526-4511 HC INFUSION THERAPY 1ST HOUR File of Mar 24, 2026 · source file | $596.88 | $829.00 | $227.94–$829.00 | 28% |
| St Elizabeths Hospital of the Hospital Sisters of the Third Order of St Francis O'Fallon, IL · (618) 234-2120 HC INFUSION THERAPY 1ST HOUR File of Mar 24, 2026 · source file | $693.36 | $963.00 | $226.53–$963.00 | 28% |
| Shriners Childrens - St Louis Saint Louis, MO · (314) 432-3600 THER/PROPH/DIAG IV INF INIT File of Mar 18, 2026 · source file | $702.10 | $702.10 | $48.90–$368.71 | — |
| Gateway Regional Medical Center Granite City, IL · (618) 798-3000 IV THERAPY DX 1 HR File of Mar 30, 2026 · source file | $781.05 | $1,301.75 | $1,301.75 | 40% |
Outpatient: lowest $110.50, median $409.18, highest $781.05 — a 7.1× difference within the same market.
As an inpatient, the same code is billed by 9 facilities here, median $432.90. 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 13 of 16 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 3 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 IV infusion is, what the price covers and why prices differ: IV infusion explained.