Michael Repplinger, MD, PhD

Associate Professor, Emergency Medicine and Radiology

Director of Research Education


  • Undergraduate: Georgetown University
  • Graduate: University of Wisconsin - 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.

Current Research Interests

Geriatric Emergency Medicine
Emergency Radiology

Regional Leadership Positions

American College of Emergency Physicians-Wisconsin Chapter
Co-Chair, Emergency Psych Task Force
ACEP Councilor, 2020 Board of Directors

Media Mentions

+ Dr. Repplinger published in WMJ -the Wisconsin Medical Journal- a peer-reviewed, indexed, scientific journal published quarterly through a collaboration between the Medical College of Wisconsin and the University of Wisconsin School of Medicine and Public Health. (December 2019). Link to article.

+ 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.

+ Dr. Repplinger Interviewed by Applied Radiology: Michael Repplinger, MD, PhD was interviewed by Applied Radiology for his work on clinical effectiveness of MRA for suspected pulmonary embolism. The brief article highlights Dr. Repplinger's paper, “Clinical outcomes after magnetic resonance angiography (MRA) versus computed tomographic angiography (CTA) for pulmonary embolism evaluation.” Link to article.

+ Dr. Repplinger Featured in Radiology Podcast, August 2018: Michael Repplinger, MD, PhD, is prominently highlighted for his work in the latest Radiology podcast for his article “Prospective Comparison of the Diagnostic Accuracy of MR Imaging versus CT for Acute Appendicitis.” The podcast is on their podcasting homepage and starts at minute 25.

+ MR vs CT for Appendicitis Study Highlighted in AuntMinnie: AuntMinnie.com, an online forum that features the latest news and information about medical imaging, published an article about Dr. Michael Repplinger's MR vs CT for appendicitis study. The forum's homepage highlighted the article, "MRI matches CT for appendicitis -- and without radiation". The article supports that when used to diagnose and confirm cases of acute appendicitis in the ED, MRI can provide the same efficacy as CT without the risk of radiation exposure for patients.

+ PE MRA Research Highlighted in AuntMinnie: AuntMinnie.com, an online forum that features the latest news and information about medical imaging, interviewed Dr. Repplinger and Scott Nagle, MD, PhD in May 2018 about their PE MRA research and recent publications. The forum’s homepage highlighted the interview, “MRA tops CTA for pulmonary embolism evaluation”.

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. Of note, Dr. Repplinger is a byproduct of the 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

+ EM Faculty Award for Excellence in Scholarship, BerbeeWalsh Department of Emergency Medicine Graduation 2017-2018

+ Best Paper Summa Cum Laude Award from the American Society of Emergency Radiology: A special congratulations to Dr. Repplinger, who was awarded the Summa Cum Laude Award for the best paper at the American Society of Emergency Radiology 2016 annual meeting.  His research, titled “Retrospective Case-control Study of 6-month Clinical Outcomes Following MRA versus CTA for the Primary Workup of Pulmonary Embolism,” continues to advance the science of radiation-free imaging.