Diagnostic mammogram, 1 breast cost in St. Louis, MO
In St. Louis, MO-IL, 14 hospitals list a cash price for diagnostic mammogram, one breast: from $134.54 to $443.52, with a median of $268.26. The lowest listed price is at Touchette Regional Hospital — $133.72 less than the median here. Across Missouri, the median is $233.75 at 60 hospitals.
- The median here, $268.26, is 6% below the US median of $285.21.
- That is 3.1× Medicare's 2026 national rate for the same service ($86.17).
- St. Louis, MO has the lowest median of 2 metro areas in Missouri with at least 10 hospitals pricing this code.
- Every hospital here lists a cash price below its full list price.
Cash prices at 14 facilities across 13 cities for code 77065, 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 |
|---|---|---|---|---|
| Touchette Regional Hospital one side lowest Cahokia Heights, IL · (618) 332-3060 Diagnostic mammography, including computer-aided detection (CAD) when performed; unilateral File of Apr 13, 2026 · source file | $134.54 | $217.00 | $8.68–$217.00 | 38% |
| Community Hospital of Staunton Staunton, IL · (618) 635-2200 MAM DIAG File of Feb 9, 2026 · source file | $216.70 | $433.40 | $125.30–$394.39 | 50% |
| Gateway Regional Medical Center one side Granite City, IL · (618) 798-3000 BR-DIG MAMMO UNILAT File of Mar 30, 2026 · source file | $246.89 | $411.49 | $411.49 | 40% |
| Mercy Hospital St Louis one side Saint Louis, MO · (314) 251-6000 Mamm Diagnostic Unilat Rt W Cad+1 more line at this price File of Jun 4, 2026 · source file | $248.30 | $382.00 | $24.83–$382.00 | 35% |
| Mercy Hospital Washington one side Washington, MO · (636) 239-8000 Mamm Diagnostic Unilat Lt W Cad+1 more line at this price File of Jun 10, 2026 · source file | $257.40 | $396.00 | $25.74–$397.09 | 35% |
| Mercy Hospital Lincoln one side Troy, MO · (636) 528-8551 Mamm Diagnostic Unilat Lt W Cad+1 more line at this price File of Jun 10, 2026 · source file | $260.00 | $400.00 | $26.00–$400.00 | 35% |
| St Josephs Hospital of the Hospital Sisters of the Third Order of St Francis Highland, IL · (618) 651-2600 DX MAMMO INCL CAD UNI File of Mar 24, 2026 · source file | $264.96 | $368.00 | $73.60–$368.00 | 28% |
| Community Hospital of Staunton Staunton, IL · (618) 635-2200 POST BIOPSY DIAG MAM File of Feb 9, 2026 · source file | $270.90 | $541.80 | $156.64–$493.04 | 50% |
| Anderson Hospital Maryville, IL · (618) 288-5711 MAM DIAG+2 more lines at this price File of Feb 6, 2026 · source file | $271.55 | $543.10 | $76.29–$488.79 | 50% |
| Mercy Hospital South one side Saint Louis, MO · (314) 525-1000 Mamm Diagnostic Unilat Rt W Cad+1 more line at this price File of Jun 10, 2026 · source file | $280.15 | $431.00 | $28.02–$431.00 | 35% |
| Mercy Hospital Jefferson one side Festus, MO · (636) 933-1000 Mamm Diagnostic Unilat Rt W Cad+1 more line at this price File of Jun 10, 2026 · source file | $303.55 | $467.00 | $30.36–$467.00 | 35% |
| Carlinville Area Hospital one side Carlinville, IL · (217) 854-3141 DIG 3D MAM DIAG L UNILATERA+3 more lines at this price File of Mar 21, 2026 · source file | $324.10 | $463.00 | $166.68–$661.43 | 30% |
| St Josephs Hospital Hospital Sisters Third Order of St Francis Breese, IL · (618) 526-4511 DX MAMMO INCL CAD UNI File of Mar 24, 2026 · source file | $367.92 | $511.00 | $41.39–$511.00 | 28% |
| Hshs Holy Family Hospital Greenville, IL · (618) 664-1230 DX MAMMO INCL CAD UNI File of Mar 24, 2026 · source file | $427.68 | $594.00 | $43.46–$594.00 | 28% |
| St Elizabeths Hospital of the Hospital Sisters of the Third Order of St Francis O'Fallon, IL · (618) 234-2120 DX MAMMO INCL CAD UNI File of Mar 24, 2026 · source file | $443.52 | $616.00 | $41.39–$616.00 | 28% |
Outpatient: lowest $134.54, median $268.26, highest $443.52 — a 3.3× difference within the same market.
As an inpatient, the same code is billed by 8 facilities here, median $297.83. 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 14 of 14 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 diagnostic mammogram, 1 breast is, what the price covers and why prices differ: Diagnostic mammogram, 1 breast explained.