Dr. Rollston is a Primary Care and Addiction Medicine Physician at the Massachusetts Mental Health Center, where she serves patients with severe and persistent mental illness; Addiction Medicine Physician at the Massachusetts General Hospital (MGH) Bridge Clinic; and Faculty of the MGH Rural Medicine Program, through which she provides telehealth primary care to patients on the Rosebud Reservation in South Dakota. She has specialized expertise in sexual and reproductive health and is certified in Perinatal Mental Health (PMH-C) through Postpartum Support International. Dr. Rollston is an Instructor in Medicine at Harvard Medical School (HMS) and serves as a thesis advisor for students in the Master of Medical Sciences in Global Health Delivery program at HMS. She earned her M.D. from East Tennessee State University Quillen College of Medicine (in the Rural Primary Care Track) and her Master of Public Health from George Washington University Milken Institute School of Public Health.