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Gary Fleisher, M.D., headshot

Physician-in-Chief, Pediatrician-in-Chief, and Chairman, Department of Pediatrics, Boston Children’s Hospital; Egan Family Foundation Professor, Department of Pediatrics, Harvard Medical School


Dr. Fleisher is Chair of the Department of Pediatrics and Physician-in-Chief at Boston Children’s Hospital and the Egan Professor of Pediatrics at Harvard Medical School (HMS). He obtained board certification in four subspecialties — pediatrics, pediatric infectious diseases, emergency medicine, and pediatric emergency medicine (PEM) — and continues to practice PEM. Dr. Fleisher co-developed the first academic PEM program in 1979 and co-initiated the first fellowship program. He was a founding member of the certification committee for ABP and an examiner for ABEM. Funded by the National Institutes of Health, World Health Organization, and others, he has published more than 150 manuscripts that have elucidated the pathophysiology and improved the diagnosis and treatment for several infectious diseases, particularly bacteremia and meningitis. He has served the academic pediatric community as president of SPR and APS, and on NIH Study Sections. As an educator, Dr. Fleisher edits multiple textbooks, including Pediatric Emergency Medicine, a journal of Pediatric Emergency Care, and UpToDate Emergency Medicine (Editor-in-Chief) on the web. He received the Janeway Award for Excellence in Teaching at Boston Children's and the Barger Excellence in Mentoring Award at HMS.