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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Stathakios J, Tsai RN, Lai Y, Gunaseelan V, Brummett C, Chapman AJ, Waljee J, Hemmila MR, Bicket MC. Journal of Trauma and Acute Care Surgery, 2026 Oct 16;Journal ArticleOpioid prescribing and hospital outcomes after trauma in patients with substance use disorder: An analysis of the michigan trauma quality improvement project
DOI:10.1097/ta.0000000000005202 -
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, Mullens CL, Levy SC, Jean R, Hemmila MR, Scott JW. Journal of the American College of Surgeons, 2026 Oct 12;Journal ArticleIncreased Medical Debt in Collections 1 Year After Emergency General Surgery Admission.
DOI:10.1097/XCS.0000000000002229 -
Hardin B, Ra J, Picart JK, Sinha A, Alshamaa F, Jackson H, Schwenker J, Taboada I, Hemmila MR, Jean RA. Surgery, 2026 Oct 12; 110670 - 110670.Journal ArticleRural Crash Location and Socioenvironmental Burden Predict Severe Injury After Motor Vehicle Crash
DOI:10.1016/j.surg.2026.110670 -
Jean RA, Hemmila MR, Benjamin AJ, Wang SC. J Am Coll Surg, 2026 Aug 24;Journal ArticleNo Time to Waste: Adopt Advanced Automatic Crash Notification Now.
DOI:10.1097/XCS.0000000000002105 PMID: 42635381 -
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
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