Dr. Greenfield is Professor of Psychiatry at Harvard Medical School and the Kristine M. Trustey Endowed Chair of Psychiatry, and Chief Academic Officer at McLean Hospital. She also serves as the Chief of the Center of Excellence in Women’s Mental Health at McLean and the Director of Clinical and Health Services Research and Education in the Alcohol and Drug Abuse Treatment Program, Division on Alcohol and Drug Abuse. Dr. Greenfield is an addiction psychiatrist, clinician and researcher. She conducts research focusing on treatment of substance use disorders, gender differences in substance disorders and health services for substance disorders. Dr. Greenfield is a federally funded investigator who has received a National Institute on Drug Abuse (NIDA)-funded career award in mentoring in substance use disorder patient-oriented research. She received a NIDA-funded grant to develop and test a new manual-based group therapy for women with substance use disorders that is now published for dissemination into practice in the book Treating Women with Substance Use Disorders: The Women’s Recovery Group Manual. She is a current member and past Chair of the American Psychiatric Association’s Council on Addiction Psychiatry, the President of the American Academy of Addiction Psychiatry, and Chair of the NIDA Clinical Trials Network’s Gender Special Interest Group. She served for 16 years as Editor-in-Chief of the Harvard Review of Psychiatry. She served as a member of the Advisory Committee on Services for Women for the U.S. Substance Abuse and Mental Health Services Administration. She has been elected to the American College of Psychiatrists, is a Distinguished Fellow of the American Psychiatric Association, a recipient of the R. Brinkley Smithers Distinguished Scientist Award from the American Society of Addiction Medicine, and a recipient of the A. Clifford Barger Award for Excellence in Mentoring from Harvard Medical School.