Nachum Eisenstein is the rabbi of the Ma'alot Dafna neighborhood, Jerusalem, Israel.
[1] American-born Eisenstein heads the International Rabbinical Committee on Conversion.
[2][3] Eisenstein is an advocate for creating halachic standards in determining the status of a conversion to Judaism.
[4] Rabbi Eisenstein has been a frequent guest on David Lichtenstein's podcast Headlines, which is devoted to contemporary Halachic issues.
He has appeared on more than 15 episodes, often sharing Rabbi Elyashiv's views on the topics.