Mueller was last seen at his home on 31st Street Lane NE, according to officials, and may be driving a silver 2016 Kia Forte with NC license plate number FAB-3339.
He is described as a white male, 5 feet 6 inches tall, 153 pounds, with short grey hair and blue eyes. Mueller was last seen wearing a purple and blue button down dress shirt with grey pants and black shoes.
Officials say they do not know where he may be heading at this time, or which direction he was traveling in.
Anyone with information is asked to call the Catawba County Sheriff’s Office at 828-464-3112.