Dr. Wiest served as the president of the Utah Dental Association 2012-2013.
Dr. Wiest is on the board for The Professional Insurance Exchange 1994-current. He reviews dental malpractice cases.
Dr. Wiest is the President-Elect for the LDS Academy of Dentists. This is a worldwide service organization under the direction of Dr. Gordon Christensen, DDS.
Dr. Wiest is a member of the International College of Dentists and serves as the Treasurer for the Utah Chapter.