A native of Prairie du Chien, Wisconsin, Dr. Nack graduated from the University of Wisconsin, LaCrosse in 1984. He received his Doctor of Podiatric Medicine degree in 1988 from the University of Osteopathic Medicine and Health Sciences, Des Moines, Iowa. Prior to joining the Clinic in 1992, Dr. Nack was Assistant Professor of Podiatric Medicine and Surgery at the University of Osteopathic Medicine and Health Sciences. Dr. Nack is a fellow of the American College of Foot and Ankle Surgeons. He is also board certified by the American Board of Podiatry Surgery. He was the past President of the Minnesota Podiatric Medical Association.