Natalie Levy, MPH, PhD Candidate
Natalie Levy is a sixth-year doctoral student and a graduate research assistant in the Department of Epidemiology at the Columbia University Mailman School of Public Health. Prior to beginning the doctoral program, Natalie worked at the New York City Department of Health and Mental Hygiene where she developed expertise in managing and analyzing large datasets. Natalie’s research often relies on the analysis of complex survey data, including the National Survey on Drug Use and Health, and encompasses work on early-life predictors of gambling and problem gambling; the effects of medical and recreational cannabis laws on cannabis use, cannabis use disorder, and perceptions; domestic violence; and epidemiologic methods.
Luis Segura, MD, MPH, DrPH Candidate
Luis Segura is a sixth-year doctoral candidate in the department of Epidemiology at the Columbia University Mailman School of Public Health. He completed his MD at the University Autonomous of Nuevo Leon (UANL), and his MPH at the National Institute of Public Health in Cuernavaca, Mexico. As part of Dr. Silvia S. Martin’s research team, his research involves analyzing complex survey data, including the National Survey on Drug Use and Health, to estimate the effect of drug policies on changes over time in prescription opioid use, marijuana use, and substance use disorders. He is most interested in applying epidemiological causal inference methods in the field of substance abuse and mental health.