Dr. Nash is an epidemiologist with over 20 years of experience and leadership in conducting epidemiologic studies. His central interests include infectious diseases, the field of public health surveillance and the use of public health surveillance data to conduct rigorous assessments of programmatic effectiveness and the impact of policies on health. He has worked extensively in domestic and international settings conducting large-scale, ‘real-world’ epidemiologic studies examining key outcomes among persons with HIV infection. Dr. Nash is the Distinguished Professor and an Executive Director, CUNY Institute for Implementation Science in Population Health of the CUNY Graduate School of Public Health and Health Policy.