Abraham Joshua Heshel Twerski (אברהם יהושע העשיל, Hebrew & Yiddish); October 6, 1930 – January 31, 2021) was an Israeli-American Hasidic rabbi, a scion of the Chernobyl Hasidic dynasty, and a psychiatrist specializing in substance abuse.
Source: [Abraham J. Twerski]( on Wikipedia.