Natasha Ludwig-Barron, PhD, MPH, is a Chicana/Mexican-American Epidemiologist and Assistant Professor at the University of California, San Francisco (UCSF), Department of Medicine, Division of Prevention Science. She brings more than 15-years of public health research and practice experience applying mixed methods and ecological approaches to understanding the co-occurring epidemics of HIV/AIDS, hepatitis C, substance use, and gender inequity, with the goal of improving the health and wellbeing of marginalized communities in the US, Mexico and Kenya. Dr. Ludwig-Barron earned her MPH at Emory University, PhD in Epidemiology at the University of Washington and completed her post-doctoral training at UCSF. Since joining UCSF, Dr. Ludwig-Barron has led three community-based harm reduction studies along the Texas-Mexico border. He also received a K01 award for Proyecto VIDA, a project that uses research methods to address HIV, hepatitis C, and opioid use among people who inject drugs in Ciudad Juárez, Mexico. As a C-DIAS Fellow, Dr. Ludwig-Barron will use research methods to help improve substance use programs for Latino communities. His goal is to make these programs more effective, easier to expand, and more equitable. Broadly, her research aims to inform international, national and local substance use policies.