After receiving her law degree from Harvard Law School and a Masters in public health from Harvard School of Public Health in 2006, she practiced as a regulatory health care attorney for several years. She then completed her Ph.D. in health policy with a concentration in evaluative science and statistics at Harvard University in 2016. Dr. Haffajee's research combines detailed legal analyses with empirical investigations of the relationships between law and health. She explores the ways in which law facilitates or serves as a barrier to patient access to quality health care and improved population health outcomes. She substantively focuses in the behavioral health and pharmaceutical policy areas, evaluating policies such as mental health/substance abuse parity and laws intended to curb opioid misuse and overdose, such as prescription drug monitoring programs.