Dr. David Fleischer completed his undergraduate training at the University of Pennsylvania in Philadephia in 1992, medical degree training at Emory University School of Medicine in Atlanta in 1997, and both Pediatric Residency and Pediatric Allergy/Immunology Fellowship training at The Johns Hopkins University School of Medicine in Baltimore in 2005. He joined the staff of National Jewish Health in Denver in August 2005, where he worked until December 2013. In January 2014, Dr. Fleischer joined the new Section of Allergy at Children’s Hospital Colorado (CHCO), where he is currently an Associate Professor of Pediatrics.

Dr. Fleischer’s clinical interests include food allergy, eosinophilic gastrointestinal disease, and atopic dermatitis. His research has focused on the natural history of food allergy and novel treatments for food allergy, including oral and sublingual immunotherapies. He currently is researching the use of component IgE testing in the diagnosis and management of food allergy. He is the Director of the Food Challenge Unit at CHCO, and is working with CHCO to develop a Food Allergy and Atopic Dermatitis Diagnostic and Treatment Center, of which he will direct. He also treats patients in the nationally recognized, multidisciplinary Gastrointestinal Eosinophil Diseases Program at CHCO.

Dr. Fleischer has published multiple original articles, review articles, and book chapters on food allergy and eosinophilic gastrointestinal disease. He has spoken nationally and internationally and appeared in both local and national TV/press on the topic of food allergy. He is a reviewer for multiple allergy journals, including the Journal of Allergy and Clinical Immunology, Allergy, Clinical and Experimental Allergy, and Pediatric Allergy and Immunology. He is a Fellow of the American Academy of Allergy, Asthma, and Immunology and the American Academy of Pediatrics. He is the current Vice-President of the Colorado Allergy and Asthma Society. He is married and has two young boys.