Dr. Raffi Tachdjian, MPH


Raffi Tachdjian, MD, MPH, is Associate Clinical Professor of Medicine and Pediatrics in the Division of Allergy and Clinical Immunology at the David Geffen School of Medicine at the University of California, Los Angeles (UCLA).
Dr. Tachdjian received his medical degree from Morehouse School of Medicine in Atlanta, Georgia, followed by an internship and residency in Pediatrics at Harvard Medical School’s Massachusetts General Hospital in Boston, with a fellowship in adult and pediatric Allergy & Immunology at the David Geffen School of Medicine at UCLA.
Dr. Tachdjian’s research focuses on immune dysfunction, asthma and allergic inflammation, and he has served as primary or co-investigator of 35 NIH and other grant-funded research studies. He was voted one of UCLA Health System’s Best Doctors and was selected to receive the Editors’ Choice Award by The Journal of Allergy and Clinical Immunology. He has also authored or co-authored over 35 peer reviewed articles in JAMA, New England Journal of Medicine, and the Lancet among others.
Dr. Tachdjian completed an internship at the Centers of Disease Control & Prevention, where he led the outbreak investigations and epidemiologic studies on Pertussis (whooping cough). His team is credited with helping to understand the waning immunity of the pertussis vaccine, which led to current booster dosing in adolescents and adults.
Board certified in Adult and Pediatric Allergy and Immunology, Dr. Tachdjian serves as Director of Clinical Trials in clinics in Santa Monica and Culver City, CA. He also attends and oversees teaching of Allergy/Immunology Fellows and rotating residents in the UCLA outpatient clinics.