Raised in Bloomington, MN, Dr. Monssen graduated from the University of St. Thomas before graduating from the University of Minnesota Dental School with a Doctor of Dental Surgery in 1990. That same year he joined Casey & O'Kane Family Dental, and in 1992 became a partner with Dr. O'Kane. Together they continue to serve Highland Park and the surrounding community. Dr. Monssen is a member of the American Dental Association, Minnesota Dental Association, and the St. Paul Dental District. A long-standing volunteer in his church and hometown Bloomington where he lives with his wife and three children, Dr. Monssen practices his belief of sharing your gifts. He actively donates dental and surgical services to single parents, the elderly and the disabled.