Dr. Kevin Horner grew up in Hudson, SD and attended the University of South Dakota where he majored in Chemistry earning his Bachelor of Science degree in 1978. Dr. Horner received his Doctoral degree in Dental Surgery from Creighton University in Omaha in 1982 and completed his orthodontic residency at Saint Louis University graduating with a Master of Science degree in Orthodontics in 1984. He started his solo practice in Sioux Falls in 1984 and has practiced with his daughter, Dr. Keri Barrow, since 2011.

Dr. Horner is a member of the American Dental Association and the South Dakota Dental Association. Dr. Horner is a past president of the South Dakota Dental Association. He is a member of the American Association of Orthodontists (AAO), the Midwestern Society of Orthodontists (MSO) and a past president of the South Dakota Society of Orthodontists. He has been a director for Delta Dental of South Dakota and a director for the Midwestern Society of Orthodontists. He is also a past MSO representative on the AAO Political Action Committee. Dr. Horner is Board Certified and holds the title of Diplomate of the American Board of Orthodontics.

Dr. Horner and his wife, Susan, have three daughters, three sons-in-law, and nine grandchildren. Dr. Horner loves spending time with his family, lake time in the summer, hunting in the fall, and traveling all year round.