Sam J. Tsemberis (born March 11, 1949, in Skoúra, Lakonia, Greece) is a Greek Canadian clinical and community psychology practitioner, and the founder of Housing First and the CEO of the Pathways Housing First Institute. Dr. Tsemberis also founded Pathways to Housing organization in NY in 1992 and later founded Pathways to Housing organizations in DC, PA, and VT. In 2018, he founded the Pathways Housing First Institute in California to provide education, consultation, and training to agencies, cities, states, and countries seeking to implement Housing First. He is also an Associate Clinical Professor in Psychiatry and Bio-behavioral Sciences at the University of Los Angeles California. In 2024, Dr. Tsemberis was recognized as a TIME100 for creating the Housing First model which "has changed the lives of tens of thousands of people and is influencing policy in cities across the U.S. and the world—from Houston to Helsinki. By treating housing as a basic human right, Sam demonstrated that leading with humanity is the most effective path to ending homelessness."
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