Jagpreet Chhatwal is the Director of the Institute for Technology Assessment at Massachusetts General Hospital and an Associate Professor at Harvard Medical School. His research is centered in decision science, health economics, data analytics, and outcomes research. For the past 12 years, he has developed decision-analytic models of infectious diseases spreading from injection drug use, opioid use disorder, and alcohol misuse; these models have provided important data for reducing disease burden in the wider community as well as in marginalized populations including people in corrections. In collaboration with the Centers for Disease Control and Prevention (CDC), he led the development of a publicly available simulation tool, Hep C State Policy Simulator, that informs the feasibility and cost of hepatitis C elimination at the state level. As a co-investigator of the HEALing Communities Study, he is currently co-leading the Opioid Policy Simulation Model (OPSiM) that informs the cost effectiveness interventions to reduce opioid overdose deaths in different counties.