Dr. Lee Ratner, MD

Dr. Lee Ratner is a board-certified oncologist and internal medicine specialist with 47 years of medical experience. He earned his medical degree from Yale University School of Medicine and completed his residency at the Clinical Center at the National Institutes of Health. His extensive career has focused on oncology and internal medicine, providing comprehensive care for patients facing complex medical conditions. Dr. Ratner speaks Spanish and Chinese, enabling him to communicate effectively with diverse patient populations.

Dr. Ratner practices at multiple prestigious facilities including Barnes Jewish Hospital, Memorial Hospital Belleville, and the Siteman Cancer Center across Missouri and Illinois. His clinical expertise includes treating HIV infections, including pediatric and acute cases. He regularly performs essential diagnostic procedures such as complete blood counts and white blood cell differentials to help diagnose and monitor various medical conditions. Patients can …receive his care in Shiloh, Belleville, Saint Louis, and O'Fallon.