Justin Bachmann, M.D., M.P.H., is medical director of the Vanderbilt Cardiopulmonary Rehabilitation Program at the Dayani Center for Health and Wellness and assistant professor of medicine, biomedical informatics and health policy at Vanderbilt University Medical Center. A data scientist by training, his research focus is in characterizing barriers to cardiac rehabilitation with large administrative claims databases as well as the use of behavioral interventions to increase participation in cardiac rehabilitation.