Jennifer Ellis directs the Bloomberg Data for Health Initiative and also focuses on epidemiology and data use across the Bloomberg Philanthropies public health program. She has also held other professional positions at NYC DOHMH, Columbia University, and American Journal of Public Health for five years. Jennifer holds a Ph.D. from Columbia University and a B.A. from Occidental College and previously served as an adjunct assistant professor for the City University of New York where she taught biostatistics and research methods.