Mark R Hemmila
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About
Dr. Hemmila is a General Surgeon in the Division of Acute Care Surgery at Michigan Medicine. He serves as the Medical Director for Adult Trauma and also as the Associate Chief Medical Information Officer for Surgery. His clinical practice includes:
General Surgery
Trauma Surgery
Burn Surgery
Critical Care
Center Memberships
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Center MemberWeil Institute for Critical Care Research
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Center MemberInstitute for Healthcare Policy and Innovation
Research Overview
Dr. Hemmila’s research focuses on comparative effectiveness evaluation of care provided for trauma and acute care surgery. He serves as the Medical Director for the Blue Cross and Blue Shield funded Michigan Trauma Quality Improvement Program (MTQIP) and Michigan Acute Care Surgery (MACS) Quality Improvement Collaboratives. He also provides expertise for the State of Michigan Department of Health and Human Services’ Michigan Statewide Trauma System, the U-M International Center for Automotive Medicine (ICAM), and the Max Harry Weil Institute for Critical Care Research & Innovation. He actively mentors residents and junior faculty members engaged in research.
Recent Publications
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Levy SC, Sheetz KH, Johnson PL, Golden R, Zambito M, Hemmila MR. Surgery, 2026 Oct; 198: 110435Journal ArticleRobotic cholecystectomy experience drives robotic adoption for complex emergency general surgery.
DOI:10.1016/j.surg.2026.110435 PMID: 42475947 -
Johnson PL, Picart JK, Hallway AK, Mullens CL, Levy SC, Hemmila MR, Jean RA. Journal of the American College of Surgeons, 2026 Aug 1; 243 (2): 438 - 441.Journal ArticleDownstream Medical Cost of Repealing Universal Motorcycle Helmet Laws
DOI:10.1097/XCS.0000000000001870 PMID: 41769898 -
Levy SC, Johnson PL, Mullens CL, Gerhardinger LJ, Jean RA, Hemmila MR. Journal of the American College of Surgeons, 2026 Aug 1; 243 (2): 272 - 282.Journal ArticleImpact of Chronic Immunosuppression on Emergency General Surgery Outcomes
DOI:10.1097/XCS.0000000000001855 PMID: 41696911 -
Diaz SD, Picart JK, Dualeh S, Aubry ST, Scott JW, Wang SC, Hemmila MR, Jean RA. Trauma Surgery and Acute Care Open, 2026 Jul 1; 11 (3):Journal ArticleImpact of vehicular data on trauma outcomes after motor vehicle crashes
DOI:10.1136/tsaco-2025-001881 -
Hunter MA, Chowanic A, Biziorek J, Fan Z, Sangji NF, Suwanabol PA, Hemmila MR. Journal of Burn Care and Research, 2026 Jul 1; 47 (4): 1163 - 1169.Journal ArticlePredictors of Discharge Disposition in Older Adults With Burn Injury: A Nationwide Emergency Department Analysis
DOI:10.1093/jbcr/irag052 PMID: 41968349 -
Mullens CL, Norton EC, Cain-Nielsen AH, Johnson PL, Jean RA, Janczyk RJ, Hemmila MR. Surgery United States, 2026 Jun 1; 194:Journal ArticleIntroduction to entropy balancing: A case study on the association between statin therapy and outcomes after traumatic injury
DOI:10.1016/j.surg.2026.110162 PMID: 41905257 -
Johnson PL, Mullens CL, Picart JK, Martin TD, Jean RA, Napolitano LM, Hemmila MR. Journal of the American College of Surgeons, 2026 Mar 1; 242 (3): 599 - 607.Journal ArticleFenestrating or Reconstituting? The Impact of Subtotal Cholecystectomy Technique on Postoperative Outcomes and Subsequent Procedures
DOI:10.1097/XCS.0000000000001651 PMID: 41051080 -
Blake ES, Kurth AE, Dougherty JM, Rittle CJ, Fan Z, Hemmila MR, Sangji NF. Journal of Burn Care and Research, 2026 Mar 1; 47 (2): 547 - 557.Journal ArticleRegional Differences in Inpatient Adult Burn Etiology Across the United States
DOI:10.1093/jbcr/iraf193 PMID: 41051354
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