He is professionally affiliated with Adventist Medical Center Hinsdale, Adventist Medical Center La Grange, and OSF Saint Francis Medical Center (Peoria, IL). He is an in-network provider for Humana HMO, Humana Bronze, and Humana Catastrophic, as well as other insurance carriers. Dr. Zimmerman graduated from Northwestern University, Feinberg School of Medicine and then he performed his residency at the University of Chicago Medical Center. He has received professional recognition including the following: Chicago Super Doctors.