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Ross Ellenhorn, PhD

For the past three decades, Dr. Ellenhorn has been a pioneer and leader in the development and promotion of community integration services, types of care that serve and empower individuals diagnosed with psychiatric and/or addiction issues outside institutional settings, and in their own communities. Trained as a sociologist, psychotherapist and social worker, Dr. Ellenhorn created the first fully-operating intensive hospital diversion and wrap-around program in Massachusetts. He later created and led one of the nation’s first Programs for Assertive Community Treatment teams in that state.  

He is the founder and owner of Ellenhorn, the most robust community integration program in the U.S. In addition, Dr. Ellenhorn is the co-founder and president of the Association for Community Integration Programs (A4CIP), a professional association representing and promoting programs dedicated to empowering clients who are receiving services while living and participating in their community.

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Andrew Tatarsky, PhD

Dr. Tatarsky has devoted his career to developing a comprehensive understanding of the broad spectrum of substance use problems and the development of an integrative harm reduction psychotherapy approach to treating that spectrum.  This treatment is described in his book, Harm Reduction Psychotherapy: A New Treatment for Drug and Alcohol Problems.   An internationally recognized leader in the treatment of substance misuse and other potentially risky behaviors, he has specialized in the treatment of addiction for 35 years as a counselor, psychologist, program director, trainer, advocate and author. He trains professionals nationally and internationally.

Dr. Tatarsky is founder and executive director of the Center for Optimal Living in New York City where treatment and professional training is based on his model of Integrative Harm Reduction Therapy (IHRP). The center is one a growing number of treatment centers fully and radically committed to the harm reduction framework for helping people make positive change in their lives. The center is also committed to helping to change the dominant addiction/recovery toward one fully informed by harm reduction principles of compassion, collaboration, empowerment and personal choice.