His research is centered in decision science, data analytics, and health economics. He has over 10 years of experience in developing simulation/mathematical models to evaluate disease outcomes. Dr. Chhatwal’s recent work on hepatitis C has informed several highly-debated questions surrounding the cost-effectiveness of hepatitis C screening and treatments. In partnership with the World Health Organization, he recently developed an online modeling tool, the Hep C Calculator, that allows policymakers from 28 countries to evaluate the cost-effectiveness of hepatitis C treatment in those countries. His work has been featured in leading media such as The Wall Street Journal, Forbes, and National Public Radio.