Dr. Siegler is a Research Assistant Professor in the Department of Epidemiology at the Rollins School of Public Health, Emory University. He has ten years of experience in HIV prevention research in domestic and international settings and currently serves as the Assistant Director of the Prevention Core in the Emory Center for AIDS Research (CFAR). His focus is on the novel use of technology and HIV prevention among men who have sex with men, addressing the intersection of biomedical and behavioral sciences. His current research uses mixed methods to develop, assess, and test through clinical trials the efficacy of novel public health interventions. He is currently leading two randomized, controlled trials regarding technology-based interventions to facilitate access to PrEP. He is also the Emory site PI of a clinical trial assessing an app-based PrEP adherence tool for clinical research. To facilitate patient access to providers willing to prescribe PrEP, he led the development and dissemination of a national database of PrEP providers. The database is disseminated through PrEP Locator, a geolocation and mobile-optimized website.