New York / Mercy Hospital of Buffalo
CMS certification 330279 · Buffalo, NY · 4 entries in CMS's price-transparency list
Mercy Hospital of Buffalo: charges and Medicare payments
Mercy Hospital of Buffalo reported 2,029 Medicare inpatient stays across 74 DRGs in 2024. Across them it charged 2.21 times what it was paid — among the lower ratios in New York, number 87 of 123 hospitals with at least 100 stays (state median 2.74×, national 4.15×). Its most frequent stay was DRG 871, Septicemia or Severe Sepsis without MV >96 Hours with MCC: 302 stays at an average charge of $38,400, 57% below the national average. It also billed 1,256 outpatient services, charging 3.82 times what Medicare paid.
- 1Medicare inpatient stays 2,029
- 2Charge ÷ paid, inpatient 2.21×
- 3Rank in NY (highest ratio = 1) 87 of 123
- 4CMS price-transparency actions 4
Inpatient stays
For the 74 DRGs that can be compared with the national average, Mercy Hospital of Buffalo 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 | 302 | $38,400 | -57% | $17,923 |
| 291 Heart Failure and Shock with MCC | 145 | $26,951 | -52% | $13,051 |
| 177 Respiratory Infections and Inflammations with MCC | 55 | $33,068 | -53% | $13,757 |
| 309 Cardiac Arrhythmia and Conduction Disorders with CC | 50 | $17,212 | -52% | $7,283 |
| 641 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and... | 46 | $15,312 | -59% | $7,025 |
| 853 Infectious and Parasitic Diseases with O.R. Procedures with... | 46 | $98,277 | -57% | $46,611 |
| 189 Pulmonary Edema and Respiratory Failure | 45 | $30,526 | -47% | $11,755 |
| 640 Miscellaneous Disorders of Nutrition, Metabolism, Fluids and... | 41 | $20,862 | -65% | $11,673 |
| 280 Acute Myocardial Infarction, Discharged Alive with MCC | 40 | $32,259 | -57% | $14,560 |
| 682 Renal Failure with MCC | 40 | $29,054 | -56% | $15,857 |
| 065 Intracranial Hemorrhage or Cerebral Infarction with CC or... | 39 | $25,858 | -54% | $9,149 |
| 683 Renal Failure with CC | 37 | $17,051 | -58% | $8,880 |
| 872 Septicemia or Severe Sepsis without MV >96 Hours without MCC | 35 | $18,159 | -63% | $8,976 |
| 193 Simple Pneumonia and Pleurisy with MCC | 34 | $37,258 | -38% | $11,645 |
| 378 Gastrointestinal Hemorrhage with CC | 34 | $23,292 | -52% | $8,719 |
| 603 Cellulitis without MCC | 34 | $17,105 | -54% | $9,315 |
| 322 Percutaneous Cardiovascular Procedures with Intraluminal... | 32 | $49,741 | -57% | $18,542 |
| 287 Circulatory Disorders except AMI, with Cardiac... | 31 | $21,734 | -66% | $10,136 |
| 281 Acute Myocardial Infarction, Discharged Alive with CC | 30 | $24,591 | -51% | $8,629 |
| 392 Esophagitis, Gastroenteritis and Miscellaneous Digestive... | 30 | $15,086 | -62% | $7,391 |
| 064 Intracranial Hemorrhage or Cerebral Infarction with MCC | 29 | $44,895 | -55% | $17,685 |
| 377 Gastrointestinal Hemorrhage with MCC | 28 | $27,744 | -68% | $15,497 |
| 698 Other Kidney and Urinary Tract Diagnoses with MCC | 26 | $32,819 | -55% | $15,933 |
| 178 Respiratory Infections and Inflammations with CC | 24 | $16,345 | -64% | $8,364 |
| 208 Respiratory System Diagnosis with Ventilator Support <=96... | 24 | $48,743 | -64% | $23,569 |
| 308 Cardiac Arrhythmia and Conduction Disorders with MCC | 23 | $19,478 | -66% | $10,395 |
| 689 Kidney and Urinary Tract Infections with MCC | 22 | $19,369 | -62% | $9,366 |
| 690 Kidney and Urinary Tract Infections without MCC | 22 | $17,593 | -53% | $7,226 |
| 286 Circulatory Disorders except AMI, with Cardiac... | 21 | $45,810 | -59% | $20,399 |
| 329 Major Small and Large Bowel Procedures with MCC | 21 | $97,094 | -55% | $53,151 |
| 101 Seizures without MCC | 20 | $17,704 | -64% | $8,520 |
| 190 Chronic Obstructive Pulmonary Disease with MCC | 20 | $21,241 | -58% | $11,168 |
| 194 Simple Pneumonia and Pleurisy with CC | 20 | $18,418 | -52% | $7,700 |
| 310 Cardiac Arrhythmia and Conduction Disorders without CC/MCC | 20 | $13,303 | -54% | $6,412 |
| 070 Other Cerebrovascular Disorders with MCC | 19 | $27,187 | -64% | $14,841 |
| 243 Permanent Cardiac Pacemaker Implant with CC | 19 | $77,643 | -30% | $24,139 |
| 321 Percutaneous Cardiovascular Procedures with Intraluminal... | 19 | $77,414 | -53% | $28,214 |
| 460 Spinal Fusion except Cervical without MCC | 19 | $57,040 | -67% | $33,153 |
| 481 Hip and Femur Procedures except Major Joint with CC | 19 | $40,574 | -60% | $17,575 |
| 100 Seizures with MCC | 18 | $29,353 | -69% | $17,005 |
| 236 Coronary Bypass without Cardiac Catheterization without MCC | 17 | $83,735 | -60% | $36,386 |
| 274 Percutaneous and Other Intracardiac Procedures without MCC | 17 | $67,886 | -57% | $30,823 |
| 312 Syncope and Collapse | 17 | $16,527 | -64% | $7,987 |
| 522 Hip Replacement with Principal Diagnosis of Hip Fracture... | 17 | $51,811 | -49% | $18,428 |
| 643 Endocrine Disorders with MCC | 17 | $35,238 | -52% | $13,724 |
| 454 Combined Anterior and Posterior Spinal Fusion with CC | 16 | $89,422 | -68% | $49,599 |
| 552 Medical Back Problems without MCC | 15 | $14,590 | -70% | $8,026 |
| 637 Diabetes with MCC | 15 | $28,292 | -57% | $14,518 |
| 233 Coronary Bypass with Cardiac Catheterization or Open... | 14 | $151,069 | -61% | $61,660 |
| 253 Other Vascular Procedures with CC | 14 | $30,390 | -77% | $25,564 |
| 314 Other Circulatory System Diagnoses with MCC | 14 | $38,578 | -59% | $19,886 |
| 389 Gastrointestinal Obstruction with CC | 14 | $17,436 | -55% | $7,180 |
| 394 Other Digestive System Diagnoses with CC | 14 | $18,164 | -61% | $9,799 |
| 638 Diabetes with CC | 14 | $14,940 | -64% | $7,786 |
| 854 Infectious and Parasitic Diseases with O.R. Procedures with... | 14 | $64,349 | -35% | $23,134 |
| 951 Other Factors Influencing Health Status | 14 | $9,421 | -63% | $5,293 |
| 393 Other Digestive System Diagnoses with MCC | 13 | $36,665 | -52% | $14,173 |
| 565 Other Musculoskeletal System and Connective Tissue Diagnoses... | 13 | $16,467 | -66% | $8,838 |
| 164 Major Chest Procedures with CC | 12 | $64,226 | -50% | $21,293 |
| 175 Pulmonary Embolism with MCC or Acute Cor Pulmonale | 12 | $34,798 | -47% | $16,829 |
Showing the 60 most frequent of 74 DRGs.
Outpatient services
Against the New York average
For Septicemia or Severe Sepsis without MV >96 Hours with MCC (DRG 871), Mercy Hospital of Buffalo charged $38,400 on average, 67% less than the New York average of $116,930, and was paid $17,923 against a state average of $24,426. For Heart Failure and Shock with MCC (DRG 291), Mercy Hospital of Buffalo charged $26,951 on average, 67% less than the New York average of $81,161, and was paid $13,051 against a state average of $16,034. For Respiratory Infections and Inflammations with MCC (DRG 177), Mercy Hospital of Buffalo charged $33,068 on average, 65% less than the New York average of $94,371, and was paid $13,757 against a state average of $19,472. For Cardiac Arrhythmia and Conduction Disorders with CC (DRG 309), Mercy Hospital of Buffalo charged $17,212 on average, 64% less than the New York average of $47,327, and was paid $7,283 against a state average of $9,589. For Comprehensive Observation Services (outpatient APC 8011), its average charge of $8,407 was 68% below the state average of $26,675. For Level 1 Endovascular Procedures (outpatient APC 5191), its average charge of $7,050 was 72% below the state average of $25,359. For Level 1 Laparoscopy and Related Services (outpatient APC 5361), its average charge of $17,167 was 51% below the state average of $35,085. For Level 5 Urology and Related Services (outpatient APC 5375), its average charge of $15,147 was 46% below the state average of $28,292.
Price-transparency record
CMS's enforcement list records these actions for a hospital named Mercy Hospital of Buffalo in Buffalo, NY, under the federal hospital price-transparency rule (45 CFR part 180), which requires hospitals to post their standard charges online:
- Warning Notice — 2021-08-25 (CMS case 490)
- Closure Notice — 2022-01-26 (CMS case 490)
- CAP Request — 2025-03-03 (CMS case 3178)
- Closure Notice — 2025-04-16 (CMS case 3178)
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.