Acute Care Hospitals · Voluntary non-profit - Private
University of Michigan Health System
- 1500 E Medical Center Drive, Spc 5474, Ann Arbor, MI 48109
- (734) 764-1505
- Acute Care Hospitals
- Emergency services available 24/7
At a glance
University of Michigan Health System carries a 4-star CMS overall rating — above the national norm. On healthcare-associated infection measures, it performs better than the national average on 24 and worse on 0. For 30-day readmissions, it beats the national rate on 1 measure and trails on 0.
Healthcare-Associated Infections
lower is better · 36 measures reported
Rates of infections patients can acquire while receiving care, such as central-line and catheter-associated infections, MRSA, and C. difficile.
| Measure | Score | Compared to national |
|---|---|---|
| Central Line Associated Bloodstream Infection (ICU + select Wards): Lower Confidence Limit | 0.355 | Better than national |
| Central Line Associated Bloodstream Infection (ICU + select Wards): Upper Confidence Limit | 0.657 | Better than national |
| Central Line Associated Bloodstream Infection: Number of Device Days | 73903 | Better than national |
| Central Line Associated Bloodstream Infection (ICU + select Wards): Predicted Cases | 83.885 | Better than national |
| Central Line Associated Bloodstream Infection (ICU + select Wards): Observed Cases | 41 | Better than national |
| Central Line Associated Bloodstream Infection (ICU + select Wards) | 0.489 | Better than national |
| Catheter Associated Urinary Tract Infections (ICU + select Wards): Lower Confidence Limit | 0.511 | Better than national |
| Catheter Associated Urinary Tract Infections (ICU + select Wards): Upper Confidence Limit | 0.984 | Better than national |
| Catheter Associated Urinary Tract Infections (ICU + select Wards): Number of Urinary Catheter Days | 33253 | Better than national |
| Catheter Associated Urinary Tract Infections (ICU + select Wards): Predicted Cases | 50.108 | Better than national |
| Catheter Associated Urinary Tract Infections (ICU + select Wards): Observed Cases | 36 | Better than national |
| Catheter Associated Urinary Tract Infections (ICU + select Wards) | 0.718 | Better than national |
| SSI - Colon Surgery: Lower Confidence Limit | 0.474 | Same as national |
| SSI - Colon Surgery: Upper Confidence Limit | 1.316 | Same as national |
| SSI - Colon Surgery: Number of Procedures | 636 | Same as national |
| SSI - Colon Surgery: Predicted Cases | 18.375 | Same as national |
| SSI - Colon Surgery: Observed Cases | 15 | Same as national |
| SSI - Colon Surgery | 0.816 | Same as national |
| SSI - Abdominal Hysterectomy: Lower Confidence Limit | 0.630 | Same as national |
| SSI - Abdominal Hysterectomy: Upper Confidence Limit | 3.810 | Same as national |
| SSI - Abdominal Hysterectomy: Number of Procedures | 295 | Same as national |
| SSI - Abdominal Hysterectomy: Predicted Cases | 2.909 | Same as national |
| SSI - Abdominal Hysterectomy: Observed Cases | 5 | Same as national |
| SSI - Abdominal Hysterectomy | 1.719 | Same as national |
| MRSA Bacteremia: Lower Confidence Limit | 0.287 | Better than national |
| MRSA Bacteremia: Upper Confidence Limit | 0.825 | Better than national |
| MRSA Bacteremia: Patient Days | 331273 | Better than national |
| MRSA Bacteremia: Predicted Cases | 27.784 | Better than national |
| MRSA Bacteremia: Observed Cases | 14 | Better than national |
| MRSA Bacteremia | 0.504 | Better than national |
| Clostridium Difficile (C.Diff): Lower Confidence Limit | 0.413 | Better than national |
| Clostridium Difficile (C.Diff): Upper Confidence Limit | 0.630 | Better than national |
| Clostridium Difficile (C.Diff): Patient Days | 302644 | Better than national |
| Clostridium Difficile (C.Diff): Predicted Cases | 167.782 | Better than national |
| Clostridium Difficile (C.Diff): Observed Cases | 86 | Better than national |
| Clostridium Difficile (C.Diff) | 0.513 | Better than national |
Complications & Deaths
lower is better · 20 measures reported
Rates of serious complications (like hip/knee replacement problems or accidental cuts during surgery) and 30-day mortality rates for common conditions.
| Measure | Score | Compared to national | Sample |
|---|---|---|---|
| Rate of complications for hip/knee replacement patients | 3.3 | Same as national | 127 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality Rate | 3.2 | Better than national | 2910 |
| Death rate for heart attack patients | 10.8 | Same as national | 187 |
| Death rate for CABG surgery patients | 2.1 | Same as national | 119 |
| Death rate for COPD patients | 8.4 | Same as national | 144 |
| Death rate for heart failure patients | 8.9 | Better than national | 733 |
| Death rate for pneumonia patients | 11.4 | Better than national | 335 |
| Death rate for stroke patients | 14 | Same as national | 264 |
| Pressure ulcer rate | 0.41 | Same as national | 14078 |
| Death rate among surgical inpatients with serious treatable complications | 219.85 | Worse than national | 265 |
| Iatrogenic pneumothorax rate | 0.27 | Same as national | 14473 |
| In-hospital fall-associated fracture rate | 0.26 | Same as national | 15885 |
| Postoperative hemorrhage or hematoma rate | 3.41 | Worse than national | 4962 |
| Postoperative acute kidney injury requiring dialysis rate | 1.91 | Same as national | 3139 |
| Postoperative respiratory failure rate | 9.57 | Same as national | 3010 |
| Perioperative pulmonary embolism or deep vein thrombosis rate | 2.78 | Same as national | 5454 |
| Postoperative sepsis rate | 4.45 | Same as national | 3258 |
| Postoperative wound dehiscence rate | 1.99 | Same as national | 1414 |
| Abdominopelvic accidental puncture or laceration rate | 1.16 | Same as national | 4021 |
| CMS Medicare PSI 90: Patient safety and adverse events composite | 0.92 | Same as national | — |
Unplanned Hospital Visits & Readmissions
lower is better · 14 measures reported
How often patients return to the hospital unexpectedly within 30 days of discharge — a marker of care quality and discharge planning.
| Measure | Score | Compared to national | Sample |
|---|---|---|---|
| Hospital return days for heart attack patients | 19.5 | Not available | 205 |
| Hospital return days for heart failure patients | 5.1 | Not available | 879 |
| Hospital return days for pneumonia patients | 103.3 | Not available | 346 |
| Hybrid Hospital-Wide All-Cause Readmission Measure (HWR) | 15.3 | Same as national | 5068 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies) | 13.7 | Same as national | 4556 |
| Rate of inpatient admissions for patients receiving outpatient chemotherapy | 9.6 | Same as national | 1530 |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy | 5.3 | Same as national | 1530 |
| Ratio of unplanned hospital visits after hospital outpatient surgery | 0.7 | Better than national | 2376 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission Rate | 13.3 | Same as national | 205 |
| Rate of readmission for CABG | 10.1 | Same as national | 118 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patients | 17.6 | Same as national | 158 |
| Heart failure (HF) 30-Day Readmission Rate | 18.4 | Same as national | 879 |
| Rate of readmission after hip/knee replacement | 4.9 | Same as national | 111 |
| Pneumonia (PN) 30-Day Readmission Rate | 18.5 | Same as national | 346 |
Patient Experience (HCAHPS)
higher is better · 9 measures reported
What patients say about their hospital stay — communication with nurses and doctors, responsiveness, cleanliness, pain management, and whether they would recommend the hospital.
| Measure | Score | Sample |
|---|---|---|
| Nurse communication - star rating | 5 | 846 |
| Doctor communication - star rating | 4 | 846 |
| Communication about medicines - star rating | 3 | 846 |
| Discharge information - star rating | 4 | 846 |
| Cleanliness - star rating | 2 | 846 |
| Quietness - star rating | 2 | 846 |
| Overall hospital rating - star rating | 4 | 846 |
| Recommend hospital - star rating | 5 | 846 |
| Summary star rating | 4 | 846 |
Timely & Effective Care
higher is better (unless a wait time) · 30 measures reported
How consistently hospitals follow recommended care processes — for example, giving heart-attack patients aspirin on arrival, or the average time spent in the emergency department.
| Measure | Score | Sample |
|---|---|---|
| Emergency department volume | very high | — |
| Global Malnutrition Composite Score | — | — |
| Global Malnutrition Composite Score: Malnutrition Diagnosis Documented | — | — |
| Global Malnutrition Composite Score: Malnutrition Risk Screening | — | — |
| Global Malnutrition Composite Score: Nutrition Assessment | — | — |
| Global Malnutrition Composite Score: Nutritional Care Plan | — | — |
| Hospital Harm - Severe Hyperglycemia | 8 | 79157 |
| Hospital Harm - Severe Hypoglycemia | 1 | 10551 |
| Hospital Harm - Opioid Related Adverse Events | — | — |
| Healthcare workers given influenza vaccination | 92 | 39183 |
| Average (median) time all patients spent in the emergency department before leaving from the visit, including psychiatric/mental health patients and patients who were transferred to another facility. A lower number of minutes is better | 358 | 390 |
| Average (median) time patients spent in the emergency department before leaving from the visit, excluding patients transferred to another facility or psychiatric care/mental health patients. A lower number of minutes is better | 358 | 359 |
| Average (median) time psychiatric/mental health patients spent in the emergency department before leaving from the visit. A lower number of minutes is better | 288 | 31 |
| Average (median) time patients spent in the emergency department before being transferred to another facility. A lower number of minutes is better | — | — |
| Left before being seen | 3 | 117586 |
| Head CT results | 30 | 20 |
| Endoscopy/polyp surveillance: appropriate follow-up interval for normal colonoscopy in average risk patients | 97 | 203 |
| Improvement in Patient's Visual Function within 90 Days Following Cataract Surgery | — | — |
| ST-Segment Elevation Myocardial Infarction (STEMI) | — | — |
| Safe Use of Opioids - Concurrent Prescribing | 15 | 11225 |
| Appropriate care for severe sepsis and septic shock | 55 | 474 |
| Septic Shock 3-Hour Bundle | 59 | 190 |
| Septic Shock 6-Hour Bundle | 94 | 71 |
| Severe Sepsis 3-Hour Bundle | 77 | 474 |
| Severe Sepsis 6-Hour Bundle | 94 | 244 |
| Discharged on Antithrombotic Therapy | 99 | 363 |
| Anticoagulation Therapy for Atrial Fibrillation/Flutter | 90 | 100 |
| Antithrombotic Therapy by End of Hospital Day 2 | 95 | 285 |
| Venous Thromboembolism Prophylaxis | — | — |
| Intensive Care Unit Venous Thromboembolism Prophylaxis | — | — |
Maternal Health
lower is better · 4 measures reported
Measures of maternal outcomes and safe delivery practices, including severe complications during childbirth.
| Measure | Score | Sample |
|---|---|---|
| Cesarean Birth | — | — |
| Risk Adjusted Severe Obstetric Complications (All) | — | — |
| Risk Adjusted Severe Obstetric Complications (excluding blood-transfusion-only cases) | — | — |
| Maternal Morbidity Structural Measure | Yes | — |
Frequently asked questions
- How is University of Michigan Health System rated?
- University of Michigan Health System has a 4 out of 5 CMS overall star rating as of the latest CMS release.
- Does University of Michigan Health System have emergency services?
- Yes. University of Michigan Health System operates a 24/7 emergency department.
- Where is University of Michigan Health System located?
- University of Michigan Health System is located at 1500 E Medical Center Drive, Spc 5474, Ann Arbor, MI 48109.
- What type of hospital is University of Michigan Health System?
- University of Michigan Health System is classified by CMS as a Acute Care Hospitals facility (Voluntary non-profit - Private).
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Data as of 2026-06-14. Source: CMS Provider Data Catalog. This is public data provided for informational purposes only and is not medical advice. See our methodology and editorial policy.