Justin B Dimick, MD, MPH
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About
Justin B. Dimick, M.D., M.P.H. is the Frederick A. Coller Distinguished Professor of Surgery and Chair of the Department of Surgery at the University of Michigan. Dr. Dimick is a graduate of Cornell University and Johns Hopkins Medical School. He completed his surgical training at the University of Michigan and a health services research fellowship at the Dartmouth Institute for Health Policy & Clinical Practice. Dr. Dimick has served in several national leadership positions, including President of the Association for Academic Surgery (AAS), Chair of the Health Services Organization and Delivery (HSOD) Study Section at the NIH, and a Founding Board Member of the Surgical Outcomes Club (SOC). He is currently the Editor-in-Chief at Annals of Surgery and currently serves as the President of the Society of Surgical Chairs (SSC). He has served as an advisor on quality and health policy for several organizations, including the BlueCross BlueShield Association (BCBSA), the American College of Surgeons-National Surgical Quality Improvement Program (ACS-NSQIP), US News and World Reports Best Hospital Rankings, and the Medicare Payment Advisory Commission (MedPAC).
Clinical Specialization:
Dr. Dimick's clinical practice is primarily devoted to advanced laparoscopy, including treatment of morbid obesity, gastroesophageal reflux (GERD), paraesophageal hernias, abdominal wall hernias, and other benign and neoplastic diseases of the stomach, spleen, and foregut. He is the editor of the widely read surgical textbook, Clinical Scenarios in Surgery: Decision Making and Operative Technique, 3rd edition published by Lippincott (2024).
Qualifications
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Residency in General SurgeryMichigan Medicine, Surgery, Ann Arbor, United States
2000 - 2007
Residency
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Fellowship in Health Services ResearchDartmouth Medical School, Hanover, United States
2003 - 2005
Predoctoral Fellowship
Center Memberships
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Center MemberInstitute for Healthcare Policy and Innovation
Research Overview
Dr. Dimick served as the Director of the Center for Healthcare Outcomes & Policy at the University of Michigan from 2014 to 2019, prior to his appointment as chair. This group includes 100+ faculty and staff focused on improving the quality and efficiency of acute and specialty care. With R01 funding from the Agency for Healthcare Research and Quality (AHRQ) and National Institutes of Health (NIH), his own research focuses on quality measurement, policy evaluation, and large-scale, innovative quality improvement interventions. He has served as the primary mentor on 10 funded K-awards for junior faculty. He is also the PI on a NIH T32 training grant focused on training the next generation of surgeon-scientists. He has more than 500 peer-reviewed publications, including papers in NEJM, JAMA, Health Affairs, and the leading surgical journals. For his research contributions, Dr. Dimick has been elected to the American Society of Clinical Investigation (ASCI) and the National Academy of Medicine (NAM).
Recent Publications
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Mullens CL, Picart J, Kunnath N, Probst JC, Dimick JB, Ibrahim AM. Annals of Surgery, 2026 Jun 1; 283 (6): 940 - 942.Journal ArticleLow Volumes, High Stakes: CMS Transforming Episode Accountability Model (TEAM) and Rural Hospitals
DOI:10.1097/SLA.0000000000006972 PMID: 41185110 -
Mullens CL, Mead M, Abid M, Probst JC, Dimick JB, Ibrahim AM, Diaz A. Annals of Surgery, 2026 May 25; Publish Ahead of Print:Journal ArticleSurgical Quality at Rural Hospitals After Private Equity Acquisition
DOI:10.1097/SLA.0000000000007103 PMID: 42178605 -
Bradley SE, Byrnes ME, Monge E, Boyce-Suwanabol J, Suwanabol PA, Dimick JB, Byrn JC, Harbaugh CM, Szczygiel LA. Journal of Surgical Education, 2026 May 1; 83 (5):Journal ArticleSurgical Coaching for Performance Optimization: Perceptual-Cognitive Expertise Displayed During Surgical Peer Coaching Intervention
DOI:10.1016/j.jsurg.2026.103890 PMID: 41691720 -
Mead M, Clark NM, Probst JC, Dimick JB, Ibrahim AM, Mullens CL. JAMA Network Open, 2026 Apr 1; 9 (4): e269217Journal ArticleEarly Evaluation of the Rural Emergency Hospital Program
DOI:10.1001/jamanetworkopen.2026.9217 PMID: 42018326 -
Harbaugh C, Roche K, Kunnath N, Dickey C, Kamdar N, Thompson MP, Suwanabol PA, Ibrahim A, Dimick JB. Journal of the National Comprehensive Cancer Network Jnccn, 2026 Mar 31; 24 (35):Journal ArticleYIA26-004: Do Health Systems Ensure High-Quality Surgical Care? Hierarchical Analysis of Colon Cancer Quality
DOI:10.6004/jnccn.2025.7181 PMID: 41911878 -
San Loh W, Norton EC, Thumma J, Dimick JB, Sheetz KH. JAMA Network Open, 2026 Mar 2; 9 (3): e263885Journal ArticleReceipt of Industry Payments and Surgeons' Adoption of Robotic-Assisted Surgery
DOI:10.1001/jamanetworkopen.2026.3885 PMID: 41910972 -
Aagaard KM, Bredbeck BC, Westfall JM, Ringel M, Ibrahim AM, Dimick JB, Kaboli PJ, Mullens CL. Journal of Rural Health, 2026 Mar 1; 42 (2):Journal ArticleA Scoping Review of Inpatient Medical and Surgical Quality Outcomes at Critical Access Hospitals
DOI:10.1111/jrh.70176 PMID: 42252899 -
Mullens CL, Johnson P, Rentas C, Kunnath N, Probst JC, Ibrahim AM, Dimick JB. Health Affairs Project Hope, 2026 Mar 1; 45 (3): 313 - 321.Journal ArticleHalf Of Rural Patients Bypassed Their Local Hospital But Received Lower-Quality Surgical Care Elsewhere, 2016-20
DOI:10.1377/hlthaff.2025.00640 PMID: 41770994
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