Aaron L. Frenz, MD, is a board certified psychiatrist who works both at McLean Hospital and in private practice. He is currently on the faculty in the department of psychiatry at Harvard Medical School, where he teaches and supervises psychiatric residents.  He specializes in depression, anxiety, professional burnout, relationship stress and substance abuse.

Dr. Frenz has served in inpatient, outpatient, and residential capacities over the last decade. He has followed outpatients in both medication management and therapy, worked as a psychiatrist within the CEC, and spent four years working as the associate medical director at the Ambulatory Treatment Center at Naukeag, a dual-diagnosis, residential, alcohol and drug abuse facility. Dr. Frenz has trained and supervised many residents both at McLean and at UMass-Worcester.

Education & Training


  • 1996 Sc.B. in Neuroscience, Brown University
  • 2001 M.D., Albert Einstein College of Medicine


  • 2001-2002 Internship in Internal Medicine, Salem Hospital
  • 2002-2005 Psychiatry Residency, Massachusetts General Hospital/McLean Adult Psychiatric Residency Training Program
  • 2006 Center for Psychoanalytic Studies, MGH/Harvard Medical School

Board Certification:

  • 2006, 2016 Psychiatry, American Board of Psychiatry and Neurology