Knee MRI with contrast cost in St. Louis, MO
In St. Louis, MO-IL, 16 hospitals list a cash price for MRI of knee or other lower-limb joint, without and then with contrast dye: from $713.27 to $4,147.20, with a median of $2,396.73. The lowest listed price is at Ranken Jordan Pediatric Bridge Hospital — $1,683.46 less than the median here. Across Missouri, the median is $2,276.92 at 66 hospitals.
- The median here, $2,396.73, is 10% below the US median of $2,670.10.
- That is 6.7× Medicare's 2026 national rate for the same service ($356.43).
- St. Louis, MO has the lowest median of 2 metro areas in Missouri with at least 10 hospitals pricing this code.
- 1 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 73723, 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 |
|---|---|---|---|---|
| Ranken Jordan Pediatric Bridge Hospital one side lowest Maryland Heights, MO · (314) 872-6400 MRI LE Joint w/ + w/o Contrast Left+1 more line at this price File of Apr 24, 2026 · source file | $713.27 | $891.58 | — | 20% |
| Gateway Regional Medical Center Granite City, IL · (618) 798-3000 MR-LW JOINT WWO File of Mar 30, 2026 · source file | $718.25 | $1,197.08 | $1,197.08 | 40% |
| Touchette Regional Hospital Cahokia Heights, IL · (618) 332-3060 Magnetic resonance (eg, proton) imaging, any joint of lower extremity; without contrast material(s), followed by contrast material(s) and further sequences File of Apr 13, 2026 · source file | $1,313.78 | $2,119.00 | $372.28–$2,119.00 | 38% |
| Mercy Hospital South one side Saint Louis, MO · (314) 525-1000 MRI Extr Lwr Jt W/WO Cont Lt+1 more line at this price File of Jun 10, 2026 · source file | $1,697.80 | $2,612.00 | $351.00–$1,000.00 | 35% |
| Mercy Hospital Jefferson one side Festus, MO · (636) 933-1000 MRI Extr Lwr Jt W/WO Cont Lt+1 more line at this price File of Jun 10, 2026 · source file | $1,732.90 | $2,666.00 | $351.00–$775.00 | 35% |
| Mercy Hospital Washington one side Washington, MO · (636) 239-8000 MRI Extr Lwr Jt W/WO Cont Rt+1 more line at this price File of Jun 10, 2026 · source file | $1,732.90 | $2,666.00 | $351.00–$797.00 | 35% |
| Mercy Hospital St Louis one side Saint Louis, MO · (314) 251-6000 MRI Extr Lwr Jt W/WO Cont Lt+1 more line at this price File of Jun 4, 2026 · source file | $2,120.30 | $3,262.00 | $342.80–$786.23 | 35% |
| Community Hospital of Staunton Staunton, IL · (618) 635-2200 MRI LOWER EXT W JNT W/WO File of Feb 9, 2026 · source file | $2,185.25 | $4,370.50 | $1,263.60–$3,977.16 | 50% |
| Carlinville Area Hospital Carlinville, IL · (217) 854-3141 MRI LE JOINT W+WO CONTRAST File of Mar 21, 2026 · source file | $2,608.20 | $3,726.00 | $1,341.36–$5,322.86 | 30% |
| Mercy Hospital Lincoln one side Troy, MO · (636) 528-8551 MRI Extr Lwr Jt W/WO Cont Rt+1 more line at this price File of Jun 10, 2026 · source file | $2,650.70 | $4,078.00 | $265.07–$4,078.00 | 35% |
| Shriners Childrens - St Louis Saint Louis, MO · (314) 432-3600 MRI JOINT LWR EXTR W/O&W/DYE File of Mar 18, 2026 · source file | $2,964.90 | $2,964.90 | $304.45–$714.26 | — |
| Anderson Hospital Maryville, IL · (618) 288-5711 MRI LOWER EXT W JNT W/WO File of Feb 6, 2026 · source file | $3,132.00 | $6,264.00 | $345.06–$5,637.60 | 50% |
| Hshs Holy Family Hospital Greenville, IL · (618) 664-1230 HC MRI LWR EXT JOINT W&W/O CONTRAST File of Mar 24, 2026 · source file | $3,722.40 | $5,170.00 | $370.49–$5,170.00 | 28% |
| St Josephs Hospital Hospital Sisters Third Order of St Francis Breese, IL · (618) 526-4511 HC MRI LWR EXT JOINT W&W/O CONTRAST File of Mar 24, 2026 · source file | $4,085.28 | $5,674.00 | $352.85–$5,674.00 | 28% |
| St Josephs Hospital of the Hospital Sisters of the Third Order of St Francis Highland, IL · (618) 651-2600 HC MRI LWR EXT JOINT W&W/O CONTRAST File of Mar 24, 2026 · source file | $4,088.88 | $5,679.00 | $821.22–$5,679.00 | 28% |
| St Elizabeths Hospital of the Hospital Sisters of the Third Order of St Francis O'Fallon, IL · (618) 234-2120 HC MRI LWR EXT JOINT W&W/O CONTRAST File of Mar 24, 2026 · source file | $4,147.20 | $5,760.00 | $352.85–$5,760.00 | 28% |
| Ranken Jordan Pediatric Bridge Hospital both sides Maryland Heights, MO · (314) 872-6400 MRI LE Joint w/ + w/o Contrast Bilateral File of Apr 24, 2026 · source file | $1,426.54 | $1,783.17 | — | 20% |
| Mercy Hospital Washington both sides Washington, MO · (636) 239-8000 MRI Extr Lwr Jt W/WO Cont Bi File of Jun 10, 2026 · source file | $2,598.70 | $3,998.00 | $351.00–$797.00 | 35% |
| Mercy Hospital Jefferson both sides Festus, MO · (636) 933-1000 MRI Extr Lwr Jt W/WO Cont Bi File of Jun 10, 2026 · source file | $2,953.60 | $4,544.00 | $560.00–$775.00 | 35% |
| Mercy Hospital St Louis both sides Saint Louis, MO · (314) 251-6000 MRI Extr Lwr Jt W/WO Cont Bi File of Jun 4, 2026 · source file | $3,180.45 | $4,893.00 | $351.00 | 35% |
| Mercy Hospital South both sides Saint Louis, MO · (314) 525-1000 MRI Extr Lwr Jt W/WO Cont Bi File of Jun 10, 2026 · source file | $3,498.30 | $5,382.00 | $560.00–$679.00 | 35% |
| Mercy Hospital Lincoln both sides Troy, MO · (636) 528-8551 MRI Extr Lwr Jt W/WO Cont Bi File of Jun 10, 2026 · source file | $4,221.75 | $6,495.00 | $422.18–$6,495.00 | 35% |
Outpatient: lowest $713.27, median $2,396.73, highest $4,147.20 — a 5.8× difference within the same market.
Both sides : lowest $1,426.54, median $3,067.03, highest $4,221.75 — a 3.0× difference within the same market.
As an inpatient, the same code is billed by 9 facilities here, median $3,132.00. 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 9 of 15 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 knee MRI with contrast is, what the price covers and why prices differ: Knee MRI with contrast explained.