Dr. Marbach is affiliated with Adventist Medical Center Hinsdale, Adventist Medical Center La Grange, and MetroSouth Medical Center. After completing medical school at the University of Illinois College of Medicine at Chicago, he performed his residency at a hospital affiliated with the University of Illinois at Chicago. He is an in-network provider for Blue Cross/Blue Shield, Coventry, and Blue Cross Blue Shield HMO, in addition to other insurance carriers.