Since 1972, he has been the spiritual and educational leader of Congregation Mount Sinai in Brooklyn Heights, New York.  He is presently Rabbi Emeritus. He has served as Chaplain of the New York City Fire Department since 1999. Rabbi Potasnik maintained a high profile, helping many families cope with the disaster of September 11^th, 2001.

Rabbi Potasnik is the co-host along with Reverend A.R. Bernard of “The Rev and The Rabbi” which airs every Sunday morning on WABC Talk Radio, 770 AM, at 8 am.   Rabbi is the religious commentator for 1010 WINS Radio, succeeding the late Rabbi Marc Tannenbaum. He is the host of the TV program Faith to Faith on Jewish Broadcasting Service (“JBS”), which is seen around the country and invites people of all faiths to participate in meaningful conversation.  He is also a member of the Board of Directors for the Archbishop Fulton J. Sheen Center for Thought & Culture.

He was appointed by Mayor Rudolph Giuliani and reappointed by Mayor Michael Bloomberg to the New York City Campaign Finance Board. He also served as a member of the New York Human Rights Commission, and Chaplain of the New York Press Club. Rabbi Potasnik was awarded the Jan Karski Humanitarian Award 2014 by the Polish Consulate, named in honor of a Polish patriot, a Catholic, and hero of the Polish Resistance. He also received the Ellis Island Medal of Honor in 2014.

Rabbi Potasnik has published numerous articles in local Brooklyn newspapers, assorted Jewish newspapers and the New York Post.  He also authored the Forward for “The Illustrated Jewish Bible for Children.” He is completing a new book, “Just Give Me a Minute” which will contain many of his featured commentaries on 1010Wins. In 2013, he was selected by the Forward Newspaper as one of the 50 most inspiring Rabbis.

Rabbi Potasnik received his Bachelor of Arts degree from Yeshiva College, and his Master of Science from the Bernard Revel Graduate School of Yeshiva University.  In 1972, he was ordained from Rabbi Isaac Elchanan Theological Seminary of Yeshiva University.  In addition, in 1986 he received his Juris Doctor degree from Brooklyn Law School.  He is the proud father of 31-year-old Harrison Potasnik.