Dr. William Sean Oreilly, MD

Dr. William Oreilly is an internal medicine physician who also specializes in oncology, bringing comprehensive care to patients with both general medical needs and cancer-related concerns. He earned his medical degree from Loyola University of Chicago Stritch School of Medicine and completed his residency at Rush Presbyterian St. Luke's Medical Center. With 51 years of experience in medicine, Dr. Oreilly has developed extensive expertise in managing complex health conditions and guiding patients through their treatment journeys.

Dr. Oreilly practices at Northwestern Medicine Palos Hospital in Palos Heights, Illinois, where he provides both primary care and specialized cancer treatment. He treats patients with high blood pressure and addresses pediatric hypertension cases. His clinical work includes ordering and interpreting important diagnostic tests such as antinuclear antibodies testing, C-reactive protein levels, and cardiac enzyme studies to help diagnose and monitor various …health conditions. Patients have given him an average rating of 3.7 out of 5 on Vitals.