Rabbi Miller has a long and illustrious history of contributions to the community, servicing in such positions as National Rabbinic Advisor to the Young Leadership Cabinet of the United Jewish Appeal; member of the Board of Governs of the College of Judea and Samaria; and President of the Orange County chapter of the Friends of the Israel Defense Forces. In addition, he has served as President of the Orange County Board of Rabbis and has led numerous leadership missions to Israel, including several on behalf of the Hebrew University of Jerusalem.