Wisconsin / St Marys Hospital Medical Ctr
CMS certification 520097 · Green Bay, WI
St Marys Hospital Medical Ctr: charges and Medicare payments
St Marys Hospital Medical Ctr reported 248 Medicare inpatient stays across 11 DRGs in 2024. Across them it charged 3.92 times what it was paid — mid-range in Wisconsin, number 19 of 55 hospitals with at least 100 stays (state median 3.47×, national 4.15×). Its most frequent stay was DRG 871, Septicemia or Severe Sepsis without MV >96 Hours with MCC: 68 stays at an average charge of $62,137, 31% below the national average. It also billed 870 outpatient services, charging 5.56 times what Medicare paid.
- 1Medicare inpatient stays 248
- 2Charge ÷ paid, inpatient 3.92×
- 3Rank in WI (highest ratio = 1) 19 of 55
- 4CMS price-transparency actions 0
Inpatient stays
For the 11 DRGs that can be compared with the national average, St Marys Hospital Medical Ctr charged more than the national average in 0 (0%). Payments follow Medicare's rates, so they usually vary far less than charges.
| DRG | Stays | Avg charge | vs US | Avg paid |
|---|---|---|---|---|
| 871 Septicemia or Severe Sepsis without MV >96 Hours with MCC | 68 | $62,137 | -31% | $15,167 |
| 378 Gastrointestinal Hemorrhage with CC | 33 | $29,015 | -40% | $7,764 |
| 291 Heart Failure and Shock with MCC | 30 | $37,036 | -34% | $10,115 |
| 467 Revision of Hip or Knee Replacement with CC | 17 | $81,963 | -48% | $23,508 |
| 177 Respiratory Infections and Inflammations with MCC | 16 | $59,998 | -15% | $18,312 |
| 322 Percutaneous Cardiovascular Procedures with Intraluminal... | 16 | $65,791 | -43% | $16,640 |
| 872 Septicemia or Severe Sepsis without MV >96 Hours without MCC | 16 | $31,115 | -37% | $7,740 |
| 193 Simple Pneumonia and Pleurisy with MCC | 15 | $47,068 | -21% | $9,324 |
| 321 Percutaneous Cardiovascular Procedures with Intraluminal... | 15 | $87,133 | -47% | $21,110 |
| 280 Acute Myocardial Infarction, Discharged Alive with MCC | 11 | $49,026 | -35% | $10,646 |
| 389 Gastrointestinal Obstruction with CC | 11 | $20,547 | -47% | $5,832 |
Outpatient services
Against the Wisconsin average
For Septicemia or Severe Sepsis without MV >96 Hours with MCC (DRG 871), St Marys Hospital Medical Ctr charged $62,137 on average, 4% more than the Wisconsin average of $59,481, and was paid $15,167 against a state average of $16,719. For Gastrointestinal Hemorrhage with CC (DRG 378), St Marys Hospital Medical Ctr charged $29,015 on average, 12% less than the Wisconsin average of $33,159, and was paid $7,764 against a state average of $8,357. For Heart Failure and Shock with MCC (DRG 291), St Marys Hospital Medical Ctr charged $37,036 on average, 6% less than the Wisconsin average of $39,564, and was paid $10,115 against a state average of $10,862. For Revision of Hip or Knee Replacement with CC (DRG 467), St Marys Hospital Medical Ctr charged $81,963 on average, 20% less than the Wisconsin average of $102,969, and was paid $23,508 against a state average of $28,889. For Level 5 Musculoskeletal Procedures (outpatient APC 5115), its average charge of $46,917 was 7% below the state average of $50,282. For Level 2 Upper GI Procedures (outpatient APC 5302), its average charge of $12,553 was 8% above the state average of $11,645. For Comprehensive Observation Services (outpatient APC 8011), its average charge of $14,146 was 20% below the state average of $17,717. For Level 1 Intraocular Procedures (outpatient APC 5491), its average charge of $11,195 was 3% below the state average of $11,485.
Price-transparency record
No action in CMS's price-transparency enforcement list (July 2026) matches this hospital's exact name, city and state. That can mean CMS has not reviewed it, or that it is listed under a different name.
Charges are the hospital's list prices averaged over its 2024 Medicare cases; payments are what those cases actually brought in. Neither is what you will pay. For a planned procedure, ask the hospital for its price estimate or, if you are uninsured or self-paying, a good-faith estimate.
Sources: CMS Medicare Inpatient Hospitals — by Provider and Service / by Geography and Service, data year 2024; CMS Medicare Outpatient Hospitals — by Provider and Service / by Geography and Service, data year 2024; CMS Hospital Price Transparency Enforcement Activities and Outcomes, July 2026. Checked 2026-10-24. Methodology.