Devin is a 1987 graduate of Southwestern Oklahoma University in Weatherford, OK. He is also a 1991 graduate of the University of Nebraska Medical Center College of Dentistry. He practiced in Hobart, OK until opening his practice in Clinton, OK, in 1995.
His family includes his wife Micci of 21 years, and their Holly and her husband Chad, and Hannah. The Schoonmakers also have one granddaughter, Conlee Kate. Dr. Schoonmaker began utilizing CAD/CAM dentistry in 2004.