Dr. Gregory J. Riely

Dr. Gregory J. Riely, MD, PhD, is a distinguished medical oncologist at Memorial Sloan Kettering Cancer Center (MSKCC), where he specializes in the diagnosis and treatment of lung cancers. He holds the role of Vice Chair of Clinical Research in the Department of Medicine and is a Professor of Medicine at Weill Cornell Medical College. Dr. Riely earned his MD and PhD from the Johns Hopkins University School of Medicine and completed his residency at Johns Hopkins Hospital, followed by fellowship training in medical oncology at MSKCC. He is board-certified in internal medicine and medical oncology, offering expert, personalized care to patients with non-small cell lung cancer, small cell lung cancer, and thymic malignancies.

Dr. Riely is internationally known for his contributions to the understanding of oncogene-driven lung cancers and the development of targeted therapies. His research focuses on molecular profiling, resistance mechanisms, and early-phase clinical trials of novel agents. He has played a key role in advancing treatments for EGFR- and ALK-positive lung cancers, among others, and collaborates extensively on translational studies that connect laboratory discoveries with clinical application. Dr. Riely has authored more than 200 peer-reviewed publications in leading journals such as Journal of Clinical Oncology, Cancer Discovery, and Nature Medicine, helping define new standards of care in thoracic oncology.

In addition to his clinical and research responsibilities, Dr. Riely is deeply involved in academic mentorship, institutional leadership, and international oncology initiatives. He frequently lectures at national and global conferences and serves on editorial boards and advisory panels shaping lung cancer research and treatment guidelines. Through his multifaceted role as clinician, investigator, and educator, Dr. Riely remains a leading figure in thoracic oncology, committed to advancing therapies and improving outcomes for patients with complex lung cancers.