Stephen A. Cullinan, M.D.,

Stephen A. Cullinan, M.D. is from Pekin, Illinois. He graduated from Northwestern University, University of Illinois College of Medicine Chicago, interned and was a resident at Henry Ford Hospital in Detroit, Michigan and received a fellowship in oncology/hematology at the Mayo Clinic. Dr. Cullinan is board certified in internal medicine and medical oncology, is a fellow of the American College of Physicians, is a clinical assistant professor at the University of Illinois College of Medicine Peoria and has authored or co-authored more than 30 medical publications.

James B. Gerstner, M.D.,

James B. Gerstner, M.D. is from Tremont, Illinois. He graduated from the University of Illinois College of Medicine Chicago, interned and was a resident at LaCrosse Lutheran Hospital, LaCrosse, Wisconsin, received a fellowship in oncology/hematology at the Mayo Clinic and was chief of the Department of Medicine of the US Army Medical Corps at Ft. Campbell, Kentucky. Dr. Gerstner is board certified in internal medicine and hematology, was part of the teaching staff at Mayo Medical School and Peoria School of Medicine.

In 1977, Dr. Cullinan formed Oncology Hematology Associates of Central Illinois, predecessor in name to Illinois CancerCare. In 1979, Dr. Gerstner joined Dr. Cullinan. Illinois CancerCare currently employs more than 270 individuals, is staffed with 14 medical oncologist, 3 gynecological oncologists and 16 nurse practitioners. In 1978, it became affiliated with the North Central Cancer Treatment Group, now with 406 treating locations in 28 states and Canada. Illinois CancerCare is ranked ninth in patient participation, ahead of the Mayo Clinic, Jacksonville, Florida and the Cleveland Clinic and the University of Iowa.

Both Dr. Cullinan and Dr. Gerstner retired from Illinois CancerCare in 2007.