Morgan M. Philbin, PhD MHS, is an Assistant Professor of Sociomedical Sciences at Columbia University's Mailman School of Public Health. She has worked in the field of social policies and health disparities for 15 years conducting mixed-methods research that explores how institutional and policy-level factors become integrated into the daily lives of racial and sexual minority youth. Dr. Philbin’s work has examined how harm reduction policies affect HIV prevention behaviors among injection drug users in Tijuana, Mexico and in Kunming, China. In addition, she has focused on the individual- and community-level factors that influence linkage to care and engagement in care for newly diagnosed HIV-positive adolescents, particularly sexual and gender minority youth. Dr. Philbin has a NIDA-funded K01 to examine how state-level policies impact sexual health and substance use risk for sexual minority youth. Dr. Philbin is currently co-Investigator on an NICHD-funded project through the Adolescent Trials Network to examine how HIV-infected youth transition to adult care, and on a NIDA-funded study exploring how state level medical marijuana policies impact LGB individuals.