Trained as a sociologist, psychotherapist and social worker, Ross Ellenhorn, Ph.D., created the first fully operational intensive hospital-diversion and wraparound program in Massachusetts, and went on to establish and lead one of the first public Programs for Assertive Community Treatment
teams in the state. He is the owner and CEO of Ellenhorn, the most robust community-integration program in the United States, which offers services outside of a hospital or residential setting for individuals experiencing addictive behaviors and/or extreme and complex states of mind and mood. Ellenhorn has offices in Boston, New York and Los Angeles.

Dr. Ellenhorn has authored three books on human behavior: “Parasuicidality and Paradox: Breaking Through the Medical Model” (Springer Publishing, 2007) addresses psychiatric hospital recidivism and techniques for diverting hospital use; “How We Change (and Ten Reasons Why We Don’t)” (HarperCollins Publishers, 2020) takes a deep dive into the dynamics that influence all human change; and “Purple Crayons: The Art of Drawing a Life,” (HarperCollins Publishers, 2022) addresses play as a central and vital human activity in our modern times. He has authored numerous articles, gives talks and seminars throughout the country, and provides consultation to mental health agencies, psychiatric hospitals and addiction programs.

Dr. Ellenhorn is the founder of the Shifting The Paradigm conferences, a bi‑annual series that addresses humanistic and empowering changes in behavioral healthcare. He is the executive producer of the film, Recovering Addiction: A Public Health Rescue Mission, a documentary on new, less‑oppressive means for understanding problematic substance use and other distressing habits.

Dr. Ellenhorn is the first person to receive a joint Ph.D. from Brandeis University’s prestigious Florence Heller School for Social Welfare Policy and Management and the Department of Sociology.