He is rated 4.0 stars out of 5 by his patients. Dr. Zimmerman takes several insurance carriers, including Humana HMO, Humana Bronze, and Humana Catastrophic. He attended medical school at Indiana University School of Medicine. For his professional training, Dr. Zimmerman completed a residency program at a hospital affiliated with the University of Illinois at Rockford. Dr. Zimmerman is professionally affiliated with Franciscan Health Hammond, Northwestern Medicine Convenient Care, and Northwestern Medicine Central DuPage Hospital. He is accepting new patients.