Dr. Harris is currently at Cedars-Sinai Medical Center, directing the Division of Pediatric Pulmonary Medicine; he is also Professor of Pediatrics at the University of California-Los Angeles.
His involvement with LGBT health began during his Pediatric Pulmonology fellowship at the North Carolina Lesbian and Gay Health Project and its telephone Healthline. After that he joined the Gay and Lesbian Medical Association Board, eventually becoming President of the organization. He subsequently represented GLMA at the Coalition of End Healthcare Disparities. Dr. Harris also assisted in the formation of the Section on LGBT Health and Wellness in the American Academy of Pediatrics.