Alexandra (Lexi) Bambas Nolen, PhD, MPH, serves as the Director of the Center to Eliminate Health Disparities and Associate Director of the Coordinating Center for Global Health at UTMB Health in Galveston, Texas. She is also an Assistant Professor in the Departments of Family Medicine, Preventive Medicine & Community Health, and Internal Medicine, and Associate Faculty in the Institute for the Medical Humanities. Under her leadership, the Center to Eliminate Health Disparities is engaged in research, training, and community action in four program areas: Health Systems Solutions, Solutions through Social Determinants of Health, Leadership Development for Social Change in Health, and Global Health. Dr. Nolen has experience in coordination of community-based research and interventions as well as policy development on issues of health equity and public health. Her work also encompasses issues of social determinants of health and intersectoral action, health information systems, advocacy strategies for health equity, health systems development, the impact of globalization and trade on health in Africa, environmental justice, and development of training materials on health equity. Dr. Nolen served on the Secretariat of the WHO Commission on Social Determinants of Health between 2005 and 2007. Previously she was the Coordinator of the Global Equity Gauge Alliance (2002-2004), a South Africa-based non-governmental organization focused on health equity initiatives in Latin America, Africa and Asia. Under the Division of Health and Human Development at the Pan American Health Organization (1999-2002), she helped to advance research and programming on issues of health equity for the organization. Dr. Nolen serves on the Executive Board of the International Society for Equity and Health; on the National Advisory Committee for the National Association of City and County Health Officials/Centers for Disease Control project The Roots of Health Inequity; on the National Advisory Panel for the Dept of Housing and Urban Development’s Healthy Communities Transformation Initiative, and on the Coordinating Committee for the Houston-Galveston Area Council Sustainability Planning Grant, among other committees.