Sameer M. Siddiqi is an associate policy researcher at the RAND Corporation. His research interests include food and environmental policy, nutrition and income support programs, and obesity and chronic disease-related policy interventions. Siddiqi is also interested in the role of partnerships and community-based participatory research in advancing health equity and evidence-informed policymaking. His research applies mixed, survey, and qualitative policy research methods, together with analytic approaches from political science and implementation research, to explore policy implementation and stakeholder engagement. Siddiqi’s dissertation used network analysis, survey, and case study methods to explore national and state coalitions related to the Supplemental Nutrition Assistance Program (SNAP). Siddiqi was previously a Johns Hopkins Center for a Livable Future Lerner Fellow, where he conducted research on food systems, food waste, and environmental sustainability and received a Graduate Certificate in food systems, environment, and public health. Prior to joining RAND, Siddiqi worked as a consultant for the National Academy of Medicine, Robert Wood Johnson Foundation, and the National Collaborative on Childhood Obesity Research. Earlier in his career, Siddiqi served as a scientific program analyst at the National Cancer Institute, where he supported grantmaking related to obesity, diet, physical activity, and cancer care delivery research. Siddiqi received his doctorate from the Johns Hopkins Bloomberg School of Public Health in the Department of Health Policy and Management, with a concentration in health and public policy, and a BS in Biology from the University of Houston.