Regents of the University of Michigan

Doing business as University of Michigan Health System

Hospital in Ann Arbor, MI, Medicare certification number 230046. CMS publishes 69 quality measures for it.

Medicare certification

Provider of Services

CCN: 230046The number CMS certifies the facility under, not a provider identifier
Status: Active
Provider type: Hospital – Short-term
Listed by Care Compare as: Acute Care Hospitals
Ownership: Voluntary non-profit - Private
Control type: Private (not for profit)
Participating since: Jul 1, 1966
Last certification: Feb 21, 2015
Beds: 884
Overall star rating: 4 of 5Care Compare
Most recent change of ownership: May 28, 1999 (1 total)
Address: 1500 E Medical Center Drive, SPC 5474
Ann Arbor, MI 48109
(734) 764-1505

NPI records for this facility (CCN to NPI Mapping) 1

Regents of the University of Michigan

dba University of Michigan Health System
- General Acute Care Hospital
- Ann Arbor, MI
- NPI 1003878539
Medicare enrollment

Units certified under this facility 1

Provider of Services

Parts of this facility that Medicare certifies under a number of their own, such as a psychiatric or rehabilitation unit.

University of Michigan Health Hospital, CCN 23S046

Patient survey (HCAHPS) 9

Medicare Care Compare

Cleanliness - star rating Worse2 of 5
- State average 2.86 (computed here)
- National average 3.44 (computed here)
- Period from 10/01/2024
Communication about medicines - star rating Better3 of 5
- State average 2.63 (computed here)
- National average 2.71 (computed here)
- Period from 10/01/2024
Discharge information - star rating Better4 of 5
- State average 3.35 (computed here)
- National average 3.31 (computed here)
- Period from 10/01/2024
Doctor communication - star rating Better4 of 5
- State average 3.07 (computed here)
- National average 3.12 (computed here)
- Period from 10/01/2024
Nurse communication - star rating Better5 of 5
- State average 3.5 (computed here)
- National average 3.43 (computed here)
- Period from 10/01/2024
Overall hospital rating - star rating Better4 of 5
- State average 3.12 (computed here)
- National average 3.29 (computed here)
- Period from 10/01/2024
Quietness - star rating Worse2 of 5
- State average 3.12 (computed here)
- National average 3.27 (computed here)
- Period from 10/01/2024
Recommend hospital - star rating Better5 of 5
- State average 3.39 (computed here)
- National average 3.64 (computed here)
- Period from 10/01/2024
Summary star rating Better4 of 5
- State average 3.21 (computed here)
- National average 3.27 (computed here)
- Period from 10/01/2024

Affiliated providers 3,480

Page 1 of 140Medicare Care Compare

Clinicians who list this facility as a hospital or facility affiliation in Care Compare.

Andrea Lynn Aagesen, D.O.
- Sports Medicine (Physical Medicine & Rehabilitation) Physician
- Ann Arbor, MI
- NPI 1598962409
Vinay Kumar Aakalu, MD
- Ophthalmology Physician
- Milwaukee, WI
- NPI 1851598072
Keith David Aaronson, MD
- Advanced Heart Failure and Transplant Cardiology Physician
- Ann Arbor, MI
- NPI 1144305301
Anjelica Christina Abate, MD
- Diagnostic Radiology Physician
- Houston, TX
- NPI 1841819216
Jaclyn Elizabeth Efrusy Abbott, NP
- Primary Care Nurse Practitioner
- Ann Arbor, MI
- NPI 1952800435
Nicole Myung - Sun Abbott, CRNA
- Certified Registered Nurse Anesthetist
- Ann Arbor, MI
- NPI 1790329860
Ahmed Abdel-Latif, M.D.
- Interventional Cardiology Physician
- Ann Arbor, MI
- NPI 1518181239
Nada Mirghani Abdulaziz, M.D.
- Rheumatology Physician
- Ann Arbor, MI
- NPI 1295098630
James Lawrence Abelson, MD, PHD
- Psychiatry Physician
- Ann Arbor, MI
- NPI 1316019821
Mallory Arch Abney, MD
- Emergency Medicine Physician
- Ann Arbor, MI
- NPI 1871080382
Emad Abou-Arab, M.D.
- Family Medicine Physician
- Ann Arbor, MI
- NPI 1225473424
Nadeem Elias Abou-Arraj, M.D.
- Internal Medicine Physician
- Canton, MI
- NPI 1437684909
Ghada Ahmed Yousif Abusin, M.D.
- Pediatric Hematology & Oncology Physician
- Ann Arbor, MI
- NPI 1992981435
Megan Elizabeth-Sabah Acho, M.D.
- Pulmonary Disease Physician
- Ann Arbor, MI
- NPI 1104168343
Kathryn Ann Ackers, NP
- Primary Care Nurse Practitioner
- Dexter, MI
- NPI 1457780546
Erin Elizabeth Ackert, PA-C
- Physician Assistant
- Ann Arbor, MI
- NPI 1821458597
Stefany Acosta-Torres, MD
- Gynecologic Oncology Physician
- Ann Arbor, MI
- NPI 1063832194
Heather Elise Acuff, MD
- Anesthesiology Physician
- Ann Arbor, MI
- NPI 1427674035
Meredith Evelyn Adams, MD
- Otolaryngology Physician
- Ann Arbor, MI
- NPI 1609992254
Michael Robert Adams, M.D.
- Internal Medicine Physician
- Ann Arbor, MI
- NPI 1780065284
Elizabeth Olubunmi Adeniyi-Kassim, PA-C
- Physician Assistant
- Ann Arbor, MI
- NPI 1346971744
Michelle Paffel Adgate, MSW
- Clinical Social Worker
- Ann Arbor, MI
- NPI 1942063235
Effie Boatemaa Adjei, MD
- Diagnostic Radiology Physician
- Ann Arbor, MI
- NPI 1477014397
Adan Aslam Admani, MD
- Psychiatry Physician
- Ann Arbor, MI
- NPI 1376074807
Mohammed Uzair Admani, M.D.
- Internal Medicine Physician
- Ann Arbor, MI
- NPI 1760860563

Complications and deaths 20

Medicare Care Compare

Abdominopelvic accidental puncture or laceration rate As expected1.16
- State average 1.12 (computed here)
- National average 1.06
- No different than the national rate
- 4,021 patients
- Period from 07/01/2022
CMS Medicare PSI 90: Patient safety and adverse events composite As expected0.92
- State average 1 (computed here)
- National average 1
- No different than the national value
- Period from 07/01/2022
Death rate among surgical inpatients with serious treatable complications Worse219.85
- State average 177.85 (computed here)
- National average 173.3
- Worse than the national rate
- 265 patients
- Period from 07/01/2022
Death rate for CABG surgery patients As expected2
- State average 2.38 (computed here)
- National average 2.4
- No different than the national rate
- 108 patients
- Period from 07/01/2022
Death rate for COPD patients As expected10
- State average 8.58 (computed here)
- National average 8.6
- No different than the national rate
- 138 patients
- Period from 07/01/2022
Death rate for heart attack patients As expected9.9
- State average 12 (computed here)
- National average 11.9
- No different than the national rate
- 165 patients
- Period from 07/01/2022
Death rate for heart failure patients As expected8.9
- State average 11.26 (computed here)
- National average 11.1
- No different than the national rate
- 734 patients
- Period from 07/01/2022
Death rate for pneumonia patients Better10.3
- State average 15.18 (computed here)
- National average 15.2
- Better than the national rate
- 332 patients
- Period from 07/01/2022
Death rate for stroke patients As expected11.3
- State average 11.95 (computed here)
- National average 11.9
- No different than the national rate
- 390 patients
- Period from 07/01/2023
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality Rate Better2.4
- State average 3.9 (computed here)
- National average 3.9
- Better than the national rate
- 7,196 patients
- Period from 07/01/2024
Iatrogenic pneumothorax rate As expected0.27
- State average 0.22 (computed here)
- National average 0.21
- No different than the national rate
- 14,473 patients
- Period from 07/01/2022
In-hospital fall-associated fracture rate As expected0.26
- State average 0.28 (computed here)
- National average 0.27
- No different than the national rate
- 15,885 patients
- Period from 07/01/2022
Perioperative pulmonary embolism or deep vein thrombosis rate As expected2.78
- State average 3.55 (computed here)
- National average 3.52
- No different than the national rate
- 5,454 patients
- Period from 07/01/2022
Postoperative acute kidney injury requiring dialysis rate As expected1.91
- State average 1.69 (computed here)
- National average 1.67
- No different than the national rate
- 3,139 patients
- Period from 07/01/2022
Postoperative hemorrhage or hematoma rate Worse3.41
- State average 2.38 (computed here)
- National average 2.34
- Worse than the national rate
- 4,962 patients
- Period from 07/01/2022
Postoperative respiratory failure rate As expected9.57
- State average 9.51 (computed here)
- National average 9.42
- No different than the national rate
- 3,010 patients
- Period from 07/01/2022
Postoperative sepsis rate As expected4.45
- State average 5.25 (computed here)
- National average 5.27
- No different than the national rate
- 3,258 patients
- Period from 07/01/2022
Postoperative wound dehiscence rate As expected1.99
- State average 1.76 (computed here)
- National average 1.77
- No different than the national rate
- 1,414 patients
- Period from 07/01/2022
Pressure ulcer rate As expected0.41
- State average 0.61 (computed here)
- National average 0.63
- No different than the national rate
- 14,078 patients
- Period from 07/01/2022
Rate of complications for hip/knee replacement patients As expected4.9
- State average 4.19 (computed here)
- National average 4.1
- No different than the national rate
- 99 patients
- Period from 04/01/2023

Infections 6

Medicare Care Compare

Catheter Associated Urinary Tract Infections (ICU + select Wards) Better0.53
- State average 0.4
- National average 1
- Better than the national benchmark
- Period from 10/01/2024
Central Line Associated Bloodstream Infection (ICU + select Wards) Better0.41
- State average 0.62
- National average 1
- Better than the national benchmark
- Period from 10/01/2024
Clostridium Difficile (C.Diff) Better0.5
- State average 0.33
- National average 1
- Better than the national benchmark
- Period from 10/01/2024
MRSA Bacteremia Better0.6
- State average 0.65
- National average 1
- Better than the national benchmark
- Period from 10/01/2024
SSI - Abdominal Hysterectomy As expected1.36
- State average 1.47
- National average 1
- No different than national benchmark
- Period from 10/01/2024
SSI - Colon Surgery As expected1.12
- State average 0.99
- National average 1
- No different than national benchmark
- Period from 10/01/2024

Outpatient imaging 2

Medicare Care Compare

Abdomen CT Use of Contrast Material 4.4
- State average 6.1 (computed here)
- National average 5.83 (computed here)
- Period from 07/01/2024
Breast Cancer Screening Recall Rates 8.8
- State average 7.03 (computed here)
- National average 8.08 (computed here)
- Period from 07/01/2024

Spending per patient 1

Medicare Care Compare

Medicare hospital spending per patient (Medicare Spending per Beneficiary) 0.91
- State average 0.95
- National average 0.99 (computed here)
- Period from 01/01/2024

Timely and effective care 18

Medicare Care Compare

Anticoagulation Therapy for Atrial Fibrillation/Flutter 90
- State average 69.44 (computed here)
- National average 74.05 (computed here)
- 100 patients
- Period from 01/01/2024
Antithrombotic Therapy by End of Hospital Day 2 95
- State average 91.64 (computed here)
- National average 92.79 (computed here)
- 285 patients
- Period from 01/01/2024
Appropriate care for severe sepsis and septic shock 57
- State average 60
- National average 65
- 465 patients
- Period from 10/01/2024
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 342
- State average 166
- National average 168
- 381 patients
- Period from 10/01/2024
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 345
- State average 159
- National average 162
- 348 patients
- Period from 10/01/2024
Average (median) time psychiatric/mental health patients spent in the emergency department before leaving from the visit. A lower number of minutes is better 356
- State average 266
- National average 257
- 32 patients
- Period from 10/01/2024
Discharged on Antithrombotic Therapy 99
- State average 94.44 (computed here)
- National average 96.1 (computed here)
- 363 patients
- Period from 01/01/2024
Endoscopy/polyp surveillance: appropriate follow-up interval for normal colonoscopy in average risk patients 97
- State average 94
- National average 93
- 203 patients
- Period from 01/01/2024
Head CT results 38
- State average 72
- National average 69
- 16 patients
- Period from 10/01/2024
Healthcare workers given influenza vaccination 92
- State average 80
- National average 78
- 39,183 patients
- Period from 10/01/2024
Hospital Harm - Severe Hyperglycemia 8
- State average 8.08 (computed here)
- National average 8.08 (computed here)
- 79,157 patients
- Period from 01/01/2024
Hospital Harm - Severe Hypoglycemia 1
- State average 0.97 (computed here)
- National average 1.09 (computed here)
- 10,551 patients
- Period from 01/01/2024
Left before being seen 3
- State average 3
- National average 2
- 117,586 patients
- Period from 01/01/2024
Safe Use of Opioids - Concurrent Prescribing 15
- State average 16
- National average 15
- 11,225 patients
- Period from 01/01/2024
Septic Shock 3-Hour Bundle 63
- State average 71
- National average 73
- 192 patients
- Period from 10/01/2024
Septic Shock 6-Hour Bundle 98
- State average 86
- National average 87
- 82 patients
- Period from 10/01/2024
Severe Sepsis 3-Hour Bundle 77
- State average 77
- National average 81
- 465 patients
- Period from 10/01/2024
Severe Sepsis 6-Hour Bundle 92
- State average 91
- National average 93
- 242 patients
- Period from 10/01/2024

Measures CMS does not publish for this facility (12)

Average (median) time patients spent in the emergency department before being transferred to another facility. A lower number of minutes is better — 1
Emergency department volume — very high
Global Malnutrition Composite Score — 5
Global Malnutrition Composite Score: Malnutrition Diagnosis Documented — 5
Global Malnutrition Composite Score: Malnutrition Risk Screening — 5
Global Malnutrition Composite Score: Nutrition Assessment — 5
Global Malnutrition Composite Score: Nutritional Care Plan — 5
Hospital Harm - Opioid Related Adverse Events — 5
Improvement in Patient's Visual Function within 90 Days Following Cataract Surgery — 5
Intensive Care Unit Venous Thromboembolism Prophylaxis — 5
ST-Segment Elevation Myocardial Infarction (STEMI) — 1
Venous Thromboembolism Prophylaxis — 5

Unplanned visits 13

Medicare Care Compare

Acute Myocardial Infarction (AMI) 30-Day Readmission Rate As expected14.6
- State average 14.28 (computed here)
- National average 14.4
- No different than the national rate
- 241 patients
- Period from 07/01/2023
Heart failure (HF) 30-Day Readmission Rate As expected19.2
- State average 21.19 (computed here)
- National average 21.3
- No different than the national rate
- 1,425 patients
- Period from 07/01/2023
Hospital return days for heart attack patients 10.7
- State average 9.88 (computed here)
- National average 6.71 (computed here)
- Average days per 100 discharges
- 176 patients
- Period from 07/01/2022
Hospital return days for heart failure patients 0.8
- State average 2.53 (computed here)
- National average 4.02 (computed here)
- Average days per 100 discharges
- 871 patients
- Period from 07/01/2022
Hospital return days for pneumonia patients 85.5
- State average 5.31 (computed here)
- National average 5.65 (computed here)
- More days than average per 100 discharges
- 344 patients
- Period from 07/01/2022
Pneumonia (PN) 30-Day Readmission Rate As expected16.6
- State average 17.08 (computed here)
- National average 17.3
- No different than the national rate
- 568 patients
- Period from 07/01/2023
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy As expected5.3
- State average 5.33 (computed here)
- National average 5.4
- No different than the national rate
- 1,530 patients
- Period from 01/01/2024
Rate of inpatient admissions for patients receiving outpatient chemotherapy As expected9.6
- State average 10.6 (computed here)
- National average 10.7
- No different than the national rate
- 1,530 patients
- Period from 01/01/2024
Rate of readmission after hip/knee replacement As expected5.3
- State average 5.98 (computed here)
- National average 5.8
- No different than the national rate
- 111 patients
- Period from 07/01/2023
Rate of readmission for CABG As expected9.4
- State average 10.41 (computed here)
- National average 11
- No different than the national rate
- 158 patients
- Period from 07/01/2023
Rate of readmission for chronic obstructive pulmonary disease (COPD) patients As expected19.3
- State average 19.73 (computed here)
- National average 20
- No different than the national rate
- 280 patients
- Period from 07/01/2023
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies) As expected13.7
- State average 12.94 (computed here)
- National average 13
- No different than the national rate
- 4,556 patients
- Period from 01/01/2022
Ratio of unplanned hospital visits after hospital outpatient surgery Better0.7
- State average 0.99 (computed here)
- National average 1.01 (computed here)
- Better than expected
- 2,376 patients
- Period from 01/01/2024

Measures CMS does not publish for this facility (1)

Hybrid Hospital-Wide All-Cause Readmission Measure (HWR) — 4

Other hospitals in Ann Arbor, MI

Sources for this page

Provider of Services: the certification, provider type, beds and status.
Medicare Care Compare: the star rating and every measure on this page, with the state and national rates CMS publishes beside them, and the clinicians who list this facility as an affiliation.
NPPES NPI Registry: the NPI records connected to this certification and the names of the providers listed above.

Better and worse are CMS's own comparison with the national rate, not ours: for most measures a low score is the good one (deaths, infections) and for others a high one is, so measures where CMS states no comparison are left uncoloured. The exception is star ratings, which are read against the national average here. Quality measures are published by CMS and are not adjusted or re-scored here. Averages marked “computed here” are the mean of every facility reporting that measure, worked out by NPIMap because CMS publishes no comparison for it. Confirm anything you rely on at Medicare Care Compare.