Michael Repplinger, MD, PhD

Clinical Assistant Professor


  • Undergraduate: Georgetown University
  • Graduate: University of Wisconsin-Madison; PhD, Clinical Investigation
  • Medical School: University of Wisconsin School of Medicine and Public Health
  • Residency: University of Wisconsin Hospitals and Clinics - Chief Resident


Dr. Repplinger graduated from the inaugural class of the University of Wisconsin Emergency Medicine Residency Program, where he served as Chief Resident. Prior to residency, Dr. Repplinger graduated from Georgetown University, earning an honors degree in Biochemistry, then finished his Medical Doctorate at the UW School of Medicine and Public Health. He also completed the Doctoral Program in Clinical Investigation offered by UW's Institute for Clinical and Translational Research. For three years, Dr. Repplinger was a UW KL2 Scholar (intramural career development award), but transitioned to an extramural K08 award through the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) in 2016.

Dr. Repplinger’s research focuses on developing, validating, and disseminating radiation-free imaging technologies, particularly magnetic resonance (MR) imaging in order to reduce patients' exposure to ionizing radiation in the emergency department setting.  His collaborative efforts have led to the routine clinical use of MR-pulmonary angiography to detect pulmonary embolism at UW.  Dr. Repplinger's research team has also completed a prospective efficacy trial of contrast-enhanced MR to diagnose appendicitis in the general population, which was published in Radiology in 2018. Other current endeavors include evaluating the effectiveness of MR to diagnose pulmonary embolism and appendicitis in the community hospital setting and assessing barriers to the implementation of novel imaging algorithms for pulmonary embolism and appendicitis.

Using Team Science and Dissemination/Implementation Research skills learned from his emergency radiology core research program, Dr. Repplinger has more recently joined other research groups at UW Health to improve the care of patients with opioid use disorder in the Madison area. Current projects aim to increase co-prescribing of naloxone with opioids from the emergency department as well as increasing the use of buprenorphine for opioid withdrawal symptoms and long-term addiction treatment. In addition to his board certification in Emergency Medicine, Dr. Repplinger is also board-certified in Addiction Medicine.

Regional Leadership Positions

+ Wisconsin Chapter of the American College of Emergency Physicians (WACEP)
Co-Chair, WPA-WAPA Wisconsin Psychiatric Association Emergency Psych Joint Task Force
Past President, 2013

National Committee Positions

+ American College of Emergency Physicians
ACEP Councilor, Research Committee, Bylaws Committee

+ Society of Academic Emergency Medicine
Research Committee, Awards Committee, Grants Committee

+ American Society for Emergency Radiology
Research Committee

+ American College of Radiology
ACR Appropriateness Criteria Expert Panel member

Recent News & Media Mentions

  • Dr. Repplinger was invited to give Radiology Grand Rounds at Brown Medicine's Department of Diagnostic Imaging at Rhode Island Hospital on January 20, 2021. The title of Dr. Repplinger's talk was "Imaging pulmonary embolism: why you should consider MRA."
  • Dr. Repplinger participated as a panelist during the October 19, 2020 WPA-WACEP Emergency Psych Task Force Webinar, Advances in Medical Stabilization for Psychiatric Patients in the Emergency Department. Dr. Repplinger, Co-Chair of the task force, and task force members discuss their white paper, "Medical Clearance' of Patients With Acute Mental Health Needs in the Emergency Department: A Literature Review and Practice Recommendations", which was published in WMJ (Jan. 2020), as well as the resulting Wisconsin SMART form to assist in the emergency medical treatment process for patients with mental health needs. Link to 10/19/20 webinar.
  • Dr. Repplinger interviewed by Fox 47 Madison News series 'The Addiction Front,' focusing on how many addicted or dependent individuals were not originally prescribed opioids or other medication, including during visits to an emergency department. Instead, they were introduced by some other means and continue to seek opioids out. Link to video news story.

Recent Accolades

  • Distinguished Service Award, Wisconsin chapter of the American College of Emergency Physicians, 2020 recipient
  • Kenneth M. Viste Jr., MD Young Physician Leadership Award, Wisconsin Medical Society Foundation, 2020 recipient
  • The Blue Ridge Institute for Medical Research reported in 2019 that Michael Repplinger, MD PhD was ranked 79th in the 2018 NIH ranking of individual Emergency Medicine researchers. Dr. Repplinger is a graduate of the UW Department of Emergency Medicine Residency Program and the ICTR PhD Program.
  • Best Paper Summa Cum Laude Award from the American Society of Emergency Radiology (Sept 2018)Diagnostic Accuracy of MR for the Evaluation of Acute Female Pelvic Pathology
  • Faculty Award for Excellence in Scholarship, BerbeeWalsh Department of Emergency Medicine (2011, 2012, 2014, 2018)