He obtained his medical school training at the University of Illinois College of Medicine at Chicago and performed his residency at Rush University Medical Center. Dr. Dehaan's clinical interests include breast cancer surgery, rectal cancer, and colon cancer. Patient ratings for Dr. Dehaan average 4.5 stars out of 5. He accepts Humana HMO, Humana Bronze, and Humana Catastrophic, in addition to other insurance carriers. Dr. Dehaan has received the following distinction: Chicago Super Doctors. He is affiliated with Loyola Medicine.