Mark Hemmila

Mark R. Hemmila, MD

Director, Michigan Trauma Quality Improvement Program
Professor of Surgery


Dr. Hemmila is a Professor in the Section of General Surgery within the Department of Surgery. He serves as the Director of the Michigan Trauma Quality Improvement Program (MTQIP), which is a Blue Cross Blue Shield of Michigan (BCBSM) sponsored collaborative quality initiative. MTQIP is housed within the Center for Healthcare Outcomes & Policy at the University of Michigan. 

Dr. Hemmila received his Bachelor of Science in Chemical Engineering from the University of Rochester-Rochester, NY in 1985. Postgraduate study in Chemical Engineering and Biomedical Engineering was performed at Columbia University-NYC, NY. Dr. Hemmila graduated from the University of Michigan Medical School in 1994 and from General Surgery residency at the University of Michigan Medical Center in 2001. He is board certified in the specialties of Surgery and Surgical Critical Care and serves as an attending faculty member on the Acute Care Surgery Service at the University of Michigan.

Since 2004, Dr. Hemmila has been involved in the creation and conduct of regional and national trauma quality improvement efforts. He is a founder of the American College of Surgeons Trauma Quality Improvement Program (ACS-TQIP). Currently, he serves as chairman of the ACS-TQIP collaborative workgroup. Dr. Hemmila created MTQIP to focus on regional collaborative improvement for trauma. MTQIP consists of 29 level 1 and 2 trauma centers in Michigan sharing data and partnering to achieve efficiency and value while delivering high quality care to trauma patients at a statewide level. MTQIP was funded by the BCBSM Foundation as a pilot project from 2008 to 2010. BCBSM formalized this CQI in January of 2011.

As a scientist at the Center for Healthcare Outcomes and Policy (CHOP) at the University of Michigan, Dr. Hemmila's current research focuses on outcomes for patients in the area of Acute Care Surgery (Trauma, Emergent General Surgery, and Critical Care). He mentors undergraduates, medical students, residents and fellows engaged in comparative effectiveness research. 


Michigan Trauma Quality Improvement Program – Coordinating Center and Program. Sponsor: Blue Cross Blue Shield of Michigan. 2011-2018

Michigan Trauma System – Data Coordination and Reporting. Sponsor: State of Michigan, Department of Health and Human Services. 2017-2108

Acute Burn Resuscitation Multicenter Prospective Observational Trial (ABRUPT Study). Sponsors: Department of Defense, American Burn Association. 2017-2020

Published Articles or Reviews

Jacobs BN, Cain-Nielsen AH, Jakubus JL, Mikhail JN, Fath JJ, Regenbogen SE, Hemmila MR.  Unfractionated heparin versus low molecular weight heparin for venous thromboembolism prophylaxis in trauma.  J Trauma Acute Care Surg, 2017;xx:xx-xx. (97)

Hemmila MR, Jakubus JL, Cain-Nielsen AH, Kepros JP, Vander Kolk WE, Wahl WL, Mikhail JN.  The Michigan trauma quality improvement program: results from a collaborative quality initiative.  J Trauma Acute Care Surg, 2017;82:867-876. (96)

Hemmila MR, Jakubus JL.  Trauma quality improvement.  Crit Care Clinics, 2017;33:193-212. (95)

Jenkins PC, Oerline MK, Mullard AJ, Englesbe MJ, Campbell DA Jr. Hemmila MR.  Hospital variation in outcomes following appendectomy in a regional quality improvement program.  Am J Surg, 2016;212:857-862. (91)

Hemmila MR, Osborne NH, Henke PK, Kepros JP, Patel SG, Cain-Nielsen AH, Birkmeyer NJ.  Prophylactic inferior vena cava filter placement does not result in a survival benefit for trauma patients.  Ann Surg, 2015;262:577-585. (86)

Jenkins PC, Richardson CR, Norton EC, Cooke CR, Banerjee M, Nathens AB, Hemmila MR.  Trauma surges: Detecting hospital capacity strain and its influence on trauma patient mortality.  JACS, 2015;221:729-738. (85)

Machado-Aranda D, Jakubus JL, Wahl WL, Cherry-Bukowiec J, To K, Park PK, Raghavendran K, Napolitano LM, Hemmila MR.  Reduction in venous thromboembolism events: trauma performance improvement and loop closure through participation in a state-wide quality collaborative.  JACS, 2015;221:661-668. (84)

Camazine MN, Hemmila MR, Leonard JC, Jacobs RA, Horst JA, Kozar RA, Bochicchio GV, Nathens AB, Cryer HM, Spinella PC.  Massive transfusion polices at trauma centers participating in the American College of Surgeons Trauma Quality Improvement Program.  J Trauma Acute Care Surg, 2015;78:S48-S53. (83)

Hemmila MR, Cain-Nielsen AH, Wahl WL, Vander Kolk WE, Jakubus JL, Mikhail JN, Birkmeyer NJ.  Regional collaborative quality improvement for trauma reduces complications and costs.  J Trauma Acute Care Surg, 2015;78:78-87. (80)

Newgard C, Fildes JJ, Wu L, Hemmila MR, Burd RS, Neal M, Mann C, Shafi S, Clark DE, Goble S, Nathens AB.  Methodology and Analytic Rationale for the American College of Surgeons Trauma Quality Improvement Program (TQIP).  JACS, 2013;216:147-157. (74)

Calland JF, Nathens AB, Young JS, Neal ML, Goble S, Fildes JJ, Hemmila MR.  The effect of exclusion criteria on risk-adjusted performance in the American College of Surgeons Trauma Quality Improvement Program: DOA or DIE?  J Trauma Acute Care Surg, 2012;73:1086-1092. (73)

Barnes GD, Birkmeyer N, Flanders SA, Froehlich JB, Hemmila M, Henke PK, Prager RL, Leydon T, Share D. Venous thromboembolism: A collaborative quality improvement model for practitioners, hospitals, and insurers. J Thromb Thrombolysis, 2012;33:274-279. (68)

Haas B, Gomez D, Hemmila MR, Nathens AB.  Prevention of complications and successful rescue of patients with serious complications: Characteristics of high-performing trauma centers.  J Trauma, 2011;70:575-582. (62)

Gomez D, Haas B, Hemmila MR, Pasquale M, Goble S, Neal M, Mann NC, Meredith W, Cryer HG, Shafi S, Nathens AB.  Hips can lie: Impact of excluding isolated hip fractures on external benchmarking of trauma center performance.  J Trauma, 2010;69:1037-1041. (57)

Hemmila MR, Birkmeyer NJ, Arbabi S, Osborne NH, Wahl WL, Dimick JB.  Introduction to propensity scores: a case study on the comparative effectiveness of laparoscopic vs. open appendectomy.  Arch Surg, 2010;145:939-945. (56)

Ingraham AM, Xiong W, Hemmila MR, Shafi S, Goble S, Neal ML, Nathens AB.  The attributable mortality and length of stay of trauma-related complications: a matched cohort study.  Ann Surg, 2010;252:358-362. (54)

Hemmila MR, Nathens AB, Shafi S, Calland JF, Clark DE, Cryer HG, Goble S, Hoeft CJ, Meredith JW, Neal ML, Pasquale MD, Pomphrey MD, Fildes JJ. The trauma quality improvement program: pilot study and initial demonstration of feasibility.  J Trauma, 2010;68:253-262. (51)

Shafi S, Nathens AB, Cryer HG, Hemmila MR, Pasquale MD, Clark DE, Neal M, Goble S, Meredith JW, Fildes JJ.  The trauma quality improvement program of the American College of Surgeons Committee on Trauma.  J Am Coll Surg, 2009;209:521-530. (48)

Hemmila MR, Jakubus JL, Maggio PM, Wahl WL, Dimick JB, Campbell DA Jr., Taheri PA.  Real money: Complications and hospital costs in trauma patients.  Surgery, 2008;144:307-316. (42)

Hemmila MR, Jakubus JL, Wahl WL, Arbabi S, Henderson WG, Khuri SF, Taheri PA, Campbell DA Jr.  Detecting the blind spot: Complications in the trauma registry and trauma quality improvement.  Surgery, 2007;142:439-449. (36)