I am an Associate Professor of pediatrics and internal medicine at the Johns Hopkins University School of Medicine. My areas of clinical expertise include: adolescent sexually transmitted infection and HIV, adolescent transition to adult care, caring for sexual and gender minority youth, and school-based health center needs. I have a joint appointment in the Johns Hopkins Bloomberg School of Public Health’s Departments of Epidemiology and Health, Behavior and Society. I serve as the Medical Director of the Pediatric and Adolescent HIV/AIDS Program and the Director of the PrEP Program (prepisforyouth.org) located in the Harriet Lane Clinic at Johns Hopkins Children’s Center, and the co-Director of the Adolescent and Young Adult Scientific Working Group Center for AIDS Research. National Institutes of Health, National Institute on Drug Abuse (NIDA) and the Centers for Disease Control and Prevention, Baltimore City Health Department fund my work. I have served as a consultant to the Centers for Disease Control and Prevention (CDC), as representative for Maryland Chapter of American Academy of Pediatrics to the Maryland General Assembly to make recommendations regarding HIV testing laws in Maryland, and has worked locally with the Baltimore City Health Department to improve HIV testing strategies in youth aged 15 to 24.