He has received a 4.5 out of 5 star rating by his patients. He is professionally affiliated with ThedaCare. Dr. Hagen is in-network for Humana HMO, Humana Bronze, and Humana Catastrophic, in addition to other insurance carriers. After completing medical school at Northwestern University, Feinberg School of Medicine, Dr. Hagen performed his residency at Fox Valley Family Medicine Residency Program.