Corey Foster, MD - Affiliated Oncologists

Ghassan Zalzaleh, MD, is a medical oncologist with Affiliated Oncologists, offering advanced cancer care to patients in the Chicago area.

As a DuPage Medical Group (DMG) patient, you have access to over 700 physicians in more than 50 clinical specialties. From primary care for the whole family to expert specialty care, we are equipped to diagnose and treat your medical needs, large and small. We have practice sites across over 120 locations in DuPage, Cook, Grundy, Kane, Kendall and Will Counties, making access to care in Chicagoland easy and convenient for you.

With more than 600 physicians and in over 70 locations, DuPage Medical Group is the largest independent, multi-specialty physician group in the Chicago area.