Dr. Kallwitz is especially interested in viral hepatitis, transplant procedures, and endoscopy. He is an in-network provider for several insurance carriers, including Humana HMO, Humana Bronze, and Humana Catastrophic. He graduated from Rush Medical College. His medical residency was performed at the University of Chicago Medical Center. He is affiliated with Loyola Outpatient Center (LOC) and Loyola Center for Health at Burr Ridge.