Denis Nash

Distinguished Professor
Executive Director, CUNY Institute for Implementation Science in Population Health
Epidemiology and Biostatistics
(646) 364-9627
Dr. Nash is a Distinguished Professor of Epidemiology and Executive Director of CUNY’s Institute for Implementation Science in Population Health (
He has over 20 years of experience in infectious disease epidemiology, and his research consistently generates new knowledge with clear programmatic and policy implications. His experience includes extensive domestic and international work in implementation science, comparative effectiveness research and large-scale epidemiologic studies. He has published over 200 scientific articles and his research is primarily funded by the National Institutes of Health (NIH).Dr. Nash brings seasoned expertise in study design and methodological approaches to large-scale, ‘real-world’, research projects. Prior to joining CUNY, Dr. Nash was an Epidemic Intelligence Service Officer with the CDC and subsequently the Director of HIV/AIDS Surveillance at the New York City Department of Health, where he pioneered named reporting for HIV. He also worked at ICAP at Columbia University as the founding Director of Monitoring, Evaluation and Research, spearheading a multi-country initiative and research agenda that leveraged routine medical records data on hundreds of thousands of people receiving HIV care in Sub-Saharan Africa. Dr. Nash has extensive global health implementation and research experience. He has worked extensively in sub-Saharan Africa, including on the Guinea Worm Eradication Program in Nigeria, sentinel HIV surveillance in Nigeria and Botswana, and rapid expansion/scale-up of HIV/AIDS care and treatment under the President’s Emergency Plan for AIDS Relief (PEPFAR) in Burundi, Cote d’Ivoire, Ethiopia, Kenya, Lesotho, Mozambique, Nigeria, Rwanda, South Africa, Swaziland, Tanzania, Uganda, and Zambia. He is also working on non-communicable diseases, which includes a community-based cohort study of cardiovascular disease and risk factors among adults in Port au Prince, Haiti in collaboration with GHESKIO and Weill-Cornell.Dr. Nash and team have launched a large-scale COVID-related research portfolio, which includes a national community-based cohort study of adults (the CHASING COVID Cohort Study ( and a city-wide collaboration with the urgent care provider, CityMD. Dr. Nash holds secondary faculty appointments in the Department of Epidemiology at Columbia University’s Mailman School of Public Health and in the Department of Epidemiology and Population Health at the Albert Einstein College of Medicine. Dr. Nash teaches courses in Infectious Disease Epidemiology and Public Health Surveillance, and has mentored over 100 masters students, doctoral students, and post-doctoral fellows training in epidemiology, public health and implementation science. Recent media appearances:
PhD in Epidemiology and Preventive Medicine from University of Maryland, College Park, MD
MPH in Public Health from Johns Hopkins University, Baltimore, MD
BS in Physics from Drexel University, Philadelphia, PA
Research Interests
Population Health, HIV/AIDS, SARS-CoV-2, COVID-19, Hepatitis C Virus, Global Health, Public Health Surveillance, Epidemiologic Methods, Data Visualization and Data Science, Health Disparities, Implementation Science, Comparative Effectiveness, Clinical Research, Quasi-experimental methods
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