Dr. Brown is an Associate Professor of Medicine at the UCSF School of Medicine in the Division of Prevention Science. He holds faculty appointments in the Center for AIDS Prevention Studies (CAPS), the Center for Vulnerable Populations (CVP), and the Bakar Computational Health Science Institute. He is also the founder and director of the Clinical and Observational Data Excellence (CODE) Lab. CODE Lab’s mission is to help researchers and healthcare workers contribute to creating a Learning Health System by leveraging New Media (i.e., mHealth, social media) and Biomedical Informatics (i.e., semantic harmonization, natural language processing, machine learning, data visualization) to collect data in real-time, improve health and clinical outcomes, and integrate gathered data among and between clinical systems and other research datasets. Through his research, Dr. Brown develops and implements innovative biomedical informatics methods, creates digital health tools, and follows the principals of community-based participatory research to address health disparities among underserved communities, and to create a Learning Health System that is responsive to vulnerable populations, particularly those living with, and at risk for acquiring, HIV/AIDS.