Dr. Richard L.S. Jennelle is a Clinical Professor of Radiation Oncology at Keck Medical Center of USC and LAC + USC Medical Center. He serves as the Director of USC's Radiation Oncology Residency Program in the Keck School of Medicine.

Dr. Jennelle graduated summa cum laude from the University of Cincinnati and earned his MD from the UC College of Medicine, where he completed his residency in radiation oncology and was chief resident in his final year.

Dr. Jennelle was previously Associate Professor and Vice-Chair of the Department of Radiation Oncology at the University of Mississippi, and served as the Chair of the University of Mississippi’s Quality Improvement Committee for the Cancer Center.

While at the University of Mississippi, Dr. Jennelle was instrumental in establishing the first ACGME accredited Radiation Oncology Residency Program in the state. Previously, he has served as the Residency Program Director at the University of Arizona and has been critical in his development of USC's Radiation Oncology Residency Program and its focus on training future leaders in the field.

Dr. Jennelle’s clinical focus is head and neck cancers, gamma knife radiosurgery, thoracic oncology, brachytherapy, and supporting gynecologic radiation oncology. He has a lifelong dedication to addressing the challenges of the medically underserved and excels in collaborating a beneficial partnership between Los Angeles County Hospital and USC's Keck School of Medicine.