Peter Barach, PhD

Clinical Psychologist

Welcome! I work with adults in individual therapy. My clinical specialties are the treatment of people with depression, anxiety, panic attacks, PTSD, and dissociative disorders. I often work with adult survivors of abuse or other traumas. I’ve been with Horizons since 1985.

I have a relational and experiential approach to therapy. That means that your emotions and other responses during our appointments are pathways to changing patterns of thinking and acting that block you from getting what you need or want. I’m trained in clinical hypnosis, EMDR, and techniques of Gestalt therapy.

I am currently seeing clients only by telehealth. You’ll need a computer with a webcam or a tablet; the image on a phone is too small for best results. You will need privacy during your appointments.

NOTE: I am not currently accepting additional clients diagnosed with Dissociative Identity Disorder.


Dr. Barach is the author of scientific and clinical articles on dissociation and Dissociative Identity Disorder (DID). He is Senior Clinical Instructor in Psychiatry at Case Western Reserve University School of Medicine in Cleveland, Ohio. He is a Fellow and Past President of the International Society for the Study of Trauma and Dissociation. Within the dissociative disorders field, he is known for having first highlighted the link between disordered attachment and the origins of dissociative disorders. He also chaired the committee that authored the first set of treatment guidelines for adults with DID. In addition to his writings on dissociation, Dr. Barach also wrote (with R. F. Stamps) The Therapist’s Internet Handbook, published by W. W. Norton. He has served as a script consultant for broadcast media and as a reviewer for several journals. Dr. Barach started the first professional listserv concerning dissociative disorders; currently, there are several thousand members around the world.

Dr. Barach has been a Clinical Psychologist since 1983. He attended Johns Hopkins University and the University of Michigan, receiving a BA in Psychology with Honors. He completed his MA and Ph.D. in Clinical Psychology at Case Western Reserve University.

In addition to his clinical practice, Dr. Barach has served in a forensic psychological role. At Cleveland VA Medical Center, Dr. Barach conducted evaluations for veterans who were applying for compensation and pension. Before that, he evaluated felony defendants at Cuyahoga County Court of Common Pleas, where he provided expert testimony on issues such as Competency to Stand Trial, Sanity at the Time of the Act, mitigating factors, Movement to Nonsecured Status, and eligibility for civil commitment. Dr. Barach has also served as an expert witness for both plaintiff and defense attorneys in civil matters, such as psychological malpractice and personal injury cases.