CMS certification 330188
Mount St. Mary's Hospital & Health Center
5300 Military Road, Lewiston, NY 14092
Mount St. Mary's Hospital & Health Center has a CMS overall rating of 2 out of 5 stars. 70% of patients who answered CMS's national survey would definitely recommend it, against a US average of 71%. Of the 13 death, complication, infection and readmission measures CMS could compare, it does better than the nation on 1 and worse on 2. Emergency patients spend a median of 2 h 36 min in its emergency department before leaving (US median 2 h 42 min).
Every figure on this page is published by CMS; we arrange and explain it, and score nothing ourselves.
What patients said
Answers from patients who stayed here, collected by CMS in the national HCAHPS survey: 425 completed surveys, 29% response rate, Oct 2024 – Sep 2025.
Emergency department
How long emergency patients spent here and how some time-critical care went, from CMS's timely and effective care measures, Oct 2024 – Sep 2025. CMS classes this emergency department's patient volume as high; busier departments tend to have longer times, so the national median for departments of the same volume is shown too. These are medians over a year of visits, not a live wait time.
| Measure | This hospital | NY | US |
|---|---|---|---|
| Median time in the emergency department before leaving Lower is better · 377 visits sampled · US median for EDs of the same volume: 3 h 22 min | 2 h 36 min | 3 h 14 min | 2 h 42 min |
| Left before being seen Lower is better · 40,957 patients | 1% | 2% | 2% |
| Stroke symptoms: brain scan read within 45 minutes Higher is better · 21 patients | 90% | 67% | 69% |
| Severe sepsis and septic shock: all recommended care given Higher is better · 121 patients | 40% | 60% | 65% |
How Mount St. Mary's Hospital & Health Center compares with nearby hospitals
The closest hospitals of the same kind that CMS rates or surveys - the same city first, then the same county and ZIP area. Every figure is CMS's: the overall star rating, the share of patients who would definitely recommend the hospital, the median time emergency patients spent before leaving, and how many death, complication, infection and readmission measures CMS found better or worse than the national rate.
| Hospital | CMS stars | Would recommend | ER median time | Vs the nation |
|---|---|---|---|---|
| Mount St. Mary's Hospital & Health CenterThis hospital | 2/5 | 70% | 2 h 36 min | 1 better 2 worse |
| Niagara Falls Memorial Medical CenterSame county · Niagara Falls | 1/5 | 55% | 3 h 49 min | 1 better 2 worse |
| Brooks-Tlc Hospital System, INCSame ZIP area · Dunkirk | 1/5 | 61% | 2 h 36 min | 1 worse |
| United Memorial Medical CenterSame ZIP area · Batavia | 2/5 | 60% | 2 h 47 min | 1 worse |
Hospitals differ in size and in how sick their patients are. CMS adjusts its outcome measures for that, but a star or a percentage is a starting point for questions, not a verdict.
Deaths
How many patients died within 30 days of admission, adjusted by CMS for how sick they were. Lower is better. Data from Jul 2022 – Jun 2025.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| All patients, hospital-wide 880 cases | Too few cases | 5% | 3.9% |
| Heart failure 95 cases | Too few cases | 15.2% | 11.1% |
| Pneumonia 104 cases | Too few cases | 20.2% | 15.2% |
| Stroke 100 cases | Too few cases | 12.7% | 11.9% |
| COPD 58 cases | Too few cases | 6.9% | 8.6% |
2 more measures had too few cases here to report.
Complications
How often patients had serious complications, most of them after surgery, adjusted for how sick they were. Lower is better. Data from Jul 2022 – Jun 2024.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| Serious complications, combined measure | No different | 0.98 likely 0.5 – 1.45 | 1 |
| Pressure ulcers (bed sores) 952 cases | No different | 0.46 per 1,000 likely 0 per 1,000 – 1.61 per 1,000 | 0.63 per 1,000 |
| Collapsed lung caused by a procedure 1,168 cases | No different | 0.2 per 1,000 likely 0 per 1,000 – 0.43 per 1,000 | 0.21 per 1,000 |
| Broken bones from falls in the hospital 1,186 cases | No different | 0.26 per 1,000 likely 0.05 per 1,000 – 0.48 per 1,000 | 0.27 per 1,000 |
| Bleeding or hematoma after surgery 70 cases | No different | 2.63 per 1,000 likely 0.91 per 1,000 – 4.35 per 1,000 | 2.34 per 1,000 |
| Blood clots in the lungs or legs after surgery 72 cases | No different | 4.4 per 1,000 likely 1.8 per 1,000 – 7.01 per 1,000 | 3.52 per 1,000 |
| Accidental cut or tear during abdominal surgery 101 cases | No different | 1.03 per 1,000 likely 0 per 1,000 – 2.12 per 1,000 | 1.06 per 1,000 |
6 more measures had too few cases here to report.
Infections caught in the hospital
Standardized infection ratio: 1.0 means as many infections as CMS predicted for a hospital like this one. Lower is better. Data from Oct 2024 – Sep 2025.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| MRSA bloodstream infections | No different | 0 | 1 |
| C. diff intestinal infections | Better | 0.12 likely 0.01 – 0.61 | 1 |
4 more measures had too few cases here to report.
Readmissions and return visits
How often patients had to come back to a hospital after going home. Lower is better. Data from Jul 2023 – Jun 2025.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| Readmitted after a heart attack 31 cases | Too few cases | 14.7% | 14.4% |
| Readmitted after heart failure 261 cases | Too few cases | 21.6% | 21.3% |
| Readmitted after pneumonia 266 cases | Too few cases | 18.7% | 17.3% |
| Readmitted after COPD 206 cases | Too few cases | 20% | 20% |
| Days back in hospital after heart failure 108 cases | Too few cases | 52.5 days per 100 | — |
| Days back in hospital after pneumonia 103 cases | Too few cases | 67.6 days per 100 | — |
| Unplanned visits after an outpatient colonoscopy 225 cases | No different | 12.5 per 1,000 likely 9.4 per 1,000 – 16.7 per 1,000 | 13 per 1,000 |
7 more measures had too few cases here to report.
Clinicians registered at this address
59 clinicians give this hospital's street address as their practice location in NPPES, the federal provider registry. The same address can take in offices and clinics in the building, and a listing does not prove admitting privileges or current employment.
| Specialty | Clinicians |
|---|---|
| Pharmacist | 8 |
| Diagnostic Radiology | 6 |
| Obstetrics & Gynecology | 5 |
| Family | 4 |
| Internal Medicine | 4 |
| Physical Therapist | 4 |
| Adult Health | 3 |
| Anesthesiology | 3 |
| Physical Therapy Assistant | 3 |
| Nurse Practitioner | 2 |
| Registered Nurse | 2 |
| Cardiovascular Disease | 1 |
First 12 alphabetically
How to read this page
- Everything here is published by CMS on Care Compare. We arrange it and explain it; the star ratings and the better / worse verdicts are CMS's, not ours.
- “No different” is the most common result on most measures at most hospitals. CMS only calls a result better or worse when the difference from the national rate is statistically clear.
- Death, complication and readmission rates are adjusted by CMS for how sick patients were, so hospitals that treat sicker patients can be compared fairly.
- Infection results are ratios: 1.0 means as many infections as CMS predicted for a hospital like this one, below 1.0 is fewer.
- These are hospital-wide results. They do not rate an individual doctor, nurse or department, and they are not medical advice.
CMS Care Compare data retrieved 4 Oct 2026, refreshed weekly. Where this data comes from and how we handle it · Report an error
Common questions about Mount St. Mary's Hospital & Health Center
Is Mount St. Mary's Hospital & Health Center a good hospital?
Mount St. Mary's Hospital & Health Center has a CMS overall rating of 2 out of 5 stars. Of the 13 death, complication, infection and readmission measures CMS could compare, it does better than the nation on 1 and worse on 2. These are hospital-wide results published by CMS; they do not rate individual doctors or departments.
Would patients recommend Mount St. Mary's Hospital & Health Center?
70% of patients who answered CMS's national survey would definitely recommend it, against a US average of 71%. The figure comes from 425 completed HCAHPS surveys.
How long is the wait in the Mount St. Mary's Hospital & Health Center emergency room?
Emergency patients spend a median of 2 h 36 min in its emergency department before leaving (US median 2 h 42 min). Among US emergency departments with high patient volume, like this one, the median is 3 h 22 min. 1% of emergency patients left before being seen (US 2%). These are medians over a year of visits, not a live wait time.