Connecticut / Saint Mary's Hospital
CMS certification 070016 · Waterbury, CT · 2 entries in CMS's price-transparency list
Saint Mary's Hospital: charges and Medicare payments
Saint Mary's Hospital reported 1,076 Medicare inpatient stays across 39 DRGs in 2024. Across them it charged 3.07 times what it was paid — among the lower ratios in Connecticut, number 19 of 25 hospitals with at least 100 stays (state median 3.43×, national 4.15×). Its most frequent stay was DRG 871, Septicemia or Severe Sepsis without MV >96 Hours with MCC: 211 stays at an average charge of $53,282, 41% below the national average. It also billed 1,701 outpatient services, charging 5.77 times what Medicare paid.
- 1Medicare inpatient stays 1,076
- 2Charge ÷ paid, inpatient 3.07×
- 3Rank in CT (highest ratio = 1) 19 of 25
- 4CMS price-transparency actions 2
Inpatient stays
For the 39 DRGs that can be compared with the national average, Saint Mary's Hospital 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 | 211 | $53,282 | -41% | $18,726 |
| 291 Heart Failure and Shock with MCC | 81 | $38,552 | -32% | $12,976 |
| 872 Septicemia or Severe Sepsis without MV >96 Hours without MCC | 53 | $29,509 | -40% | $10,653 |
| 177 Respiratory Infections and Inflammations with MCC | 51 | $51,531 | -27% | $16,068 |
| 280 Acute Myocardial Infarction, Discharged Alive with MCC | 46 | $49,028 | -35% | $15,838 |
| 193 Simple Pneumonia and Pleurisy with MCC | 44 | $41,219 | -31% | $13,652 |
| 190 Chronic Obstructive Pulmonary Disease with MCC | 35 | $47,298 | -7% | $12,482 |
| 853 Infectious and Parasitic Diseases with O.R. Procedures with... | 32 | $110,871 | -52% | $42,679 |
| 189 Pulmonary Edema and Respiratory Failure | 27 | $55,016 | -4% | $13,253 |
| 065 Intracranial Hemorrhage or Cerebral Infarction with CC or... | 26 | $40,386 | -28% | $11,065 |
| 682 Renal Failure with MCC | 26 | $53,616 | -19% | $15,322 |
| 309 Cardiac Arrhythmia and Conduction Disorders with CC | 24 | $29,924 | -17% | $8,645 |
| 377 Gastrointestinal Hemorrhage with MCC | 24 | $52,033 | -39% | $17,853 |
| 683 Renal Failure with CC | 23 | $27,202 | -33% | $9,959 |
| 064 Intracranial Hemorrhage or Cerebral Infarction with MCC | 21 | $51,207 | -49% | $17,276 |
| 481 Hip and Femur Procedures except Major Joint with CC | 21 | $65,172 | -35% | $21,154 |
| 378 Gastrointestinal Hemorrhage with CC | 20 | $34,650 | -29% | $10,399 |
| 175 Pulmonary Embolism with MCC or Acute Cor Pulmonale | 19 | $49,542 | -24% | $14,042 |
| 640 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and... | 18 | $35,764 | -41% | $13,133 |
| 689 Kidney and Urinary Tract Infections with MCC | 17 | $38,182 | -26% | $12,914 |
| 603 Cellulitis without MCC | 16 | $21,022 | -44% | $10,150 |
| 690 Kidney and Urinary Tract Infections without MCC | 16 | $23,789 | -37% | $8,482 |
| 698 Other Kidney and Urinary Tract Diagnoses with MCC | 16 | $40,272 | -45% | $15,897 |
| 870 Septicemia or Severe Sepsis with MV >96 Hours | 16 | $184,876 | -43% | $63,460 |
| 389 Gastrointestinal Obstruction with CC | 15 | $30,026 | -23% | $8,917 |
| 522 Hip Replacement with Principal Diagnosis of Hip Fracture... | 15 | $69,948 | -32% | $22,605 |
| 281 Acute Myocardial Infarction, Discharged Alive with CC | 14 | $45,243 | -10% | $9,938 |
| 392 Esophagitis, Gastroenteritis and Miscellaneous Digestive... | 14 | $25,720 | -36% | $8,770 |
| 854 Infectious and Parasitic Diseases with O.R. Procedures with... | 14 | $67,850 | -31% | $20,198 |
| 308 Cardiac Arrhythmia and Conduction Disorders with MCC | 13 | $40,638 | -28% | $12,906 |
| 321 Percutaneous Cardiovascular Procedures with Intraluminal... | 13 | $103,203 | -37% | $29,099 |
| 322 Percutaneous Cardiovascular Procedures with Intraluminal... | 13 | $88,543 | -23% | $18,662 |
| 394 Other Digestive System Diagnoses with CC | 13 | $41,938 | -11% | $9,769 |
| 287 Circulatory Disorders except AMI, with Cardiac... | 12 | $50,731 | -21% | $12,925 |
| 390 Gastrointestinal Obstruction without CC/MCC | 12 | $24,486 | -12% | $6,517 |
| 811 Red Blood Cell Disorders with MCC | 12 | $38,999 | -43% | $14,918 |
| 083 Traumatic Stupor and Coma >1 Hour with CC | 11 | $40,612 | -45% | $14,323 |
| 314 Other Circulatory System Diagnoses with MCC | 11 | $53,861 | -43% | $20,834 |
| 812 Red Blood Cell Disorders without MCC | 11 | $36,469 | -18% | $8,953 |
Outpatient services
Against the Connecticut average
For Septicemia or Severe Sepsis without MV >96 Hours with MCC (DRG 871), Saint Mary's Hospital charged $53,282 on average, 23% less than the Connecticut average of $69,366, and was paid $18,726 against a state average of $20,799. For Heart Failure and Shock with MCC (DRG 291), Saint Mary's Hospital charged $38,552 on average, 25% less than the Connecticut average of $51,456, and was paid $12,976 against a state average of $13,920. For Septicemia or Severe Sepsis without MV >96 Hours without MCC (DRG 872), Saint Mary's Hospital charged $29,509 on average, 24% less than the Connecticut average of $38,915, and was paid $10,653 against a state average of $11,460. For Respiratory Infections and Inflammations with MCC (DRG 177), Saint Mary's Hospital charged $51,531 on average, 8% less than the Connecticut average of $55,851, and was paid $16,068 against a state average of $17,501. For Comprehensive Observation Services (outpatient APC 8011), its average charge of $16,933 was 28% below the state average of $23,465. For Level 1 Intraocular Procedures (outpatient APC 5491), its average charge of $13,298 was 34% above the state average of $9,887. For Level 5 Urology and Related Services (outpatient APC 5375), its average charge of $21,501 was 1% above the state average of $21,291. For Level 2 Upper GI Procedures (outpatient APC 5302), its average charge of $10,319 was 4% below the state average of $10,696.
Price-transparency record
CMS's enforcement list records these actions for a hospital named Saint Mary's Hospital in Waterbury, CT, under the federal hospital price-transparency rule (45 CFR part 180), which requires hospitals to post their standard charges online:
- Met Requirements — 2023-11-16 (CMS case 1653)
- Met Requirements — 2025-07-10 (CMS case 5635)
A warning notice or corrective-action request is not a finding of wrongdoing; "Met Requirements" and closure notices record that CMS's review ended. Matched to this hospital by exact name, city and state.
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.