The Mission of Illinois CancerCare is to provide comprehensive, compassionate care that enhances the lives of patients and their families. Who We Are Illinois CancerCare, P.C. is a comprehensive practice treating patients with cancer and blood diseases. Our focus is providing state-of-the-art treatments for our patients in the fight against these diseases while staying on the leading edge of breakthrough research and medicines. We are one of the largest private oncology practices in the nation, and we’re proud to say we have helped countless individuals overcome this disease to live healthy, inspiring lives. Illinois CancerCare was founded in 1977 by Dr. Stephen Cullinan in Peoria, Illinois. Since then, our practice has grown to include 17 physicians and 12 different clinic locations. Our care team also includes 22 nurse practitioners and nearly 50 nurses – 40% of them certified as OCNs (Oncology Certified Nurses) – and more than 330 full- and part-time staff members.