Aaron L. Frenz, MD, is a board certified psychiatrist who has worked both at McLean Hospital and in private practice. He has been on the faculty in the department of psychiatry at Harvard Medical School, where he has taught and supervised psychiatric residents.  He works with all adults from age 19 to 65, and specializes in three main groups: 1) College age students – especially local colleges: Boston College, Brandeis and Boston University 2) Professionals experiencing depression and burnout – especially physicians and other medical professionals in the age of COVID and  3) Adults with depression and anxiety disorders.

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