Jonathan Bruce Greer, MD
Dr. Greer is a surgical oncologist with Johns Hopkins Medicine. He is the Director of the Peritoneal Surface Malignancy Program at Hopkins, as well as an Assistant Professor of Surgery within the Johns Hopkins Department of Surgery. His clinical expertise includes cytoreductive surgery, gastric and gastroesophageal cancer, and the use of hyperthermic intraperitoneal chemotherapy (HIPEC).
Education and Career
Dr. Greer earned both his undergraduate and medical degrees from Brown University in Providence, Rhode Island. He completed a general surgery residency at the Massachusetts General Hospital/Harvard Medical School in Boston, then engaged in a research fellowship in immunology at New York’s Memorial Sloan Kettering Cancer Center. He also completed a clinical fellowship in complex general surgical oncology at the University of Pittsburgh Medical Center.[1]
After completing his education, Dr. Greer joined Johns Hopkins Medicine in 2019. He is an assistant professor of surgery within the Johns Hopkins Department of Surgery. He is also an assistant professor of oncology within the gastrointestinal cancer program at the Johns Hopkins University School of Medicine’s Sidney Kimmel Comprehensive Cancer Center. He is the director of the peritoneal surface malignancy program, program director for the complex general surgical oncology fellowship, and a member of the gastric cancer center, the sarcoma program, and the neuroendocrine multidisciplinary clinic at Johns Hopkins.
Dr. Greer’s clinical practice centers on complex general surgical oncology. He frequently operates on patients diagnosed with peritoneal mesothelioma, conducting cytoreductive surgery with or without HIPEC. He also operates on patients with metastatic colorectal and appendix cancer, gastric and gastroesophageal cancer, and neuroendocrine tumors.
Dr. Greer is a member of the Association of Academic Surgeons, the American College of Surgeons, the Society for Surgery of the Alimentary Tract, the Trans-Atlantic Retroperitoneal Sarcoma Working Group, the Connective Tissue Oncology Society, and a fellow of the Society of Surgical Oncology (FSSO).
Research Interests
Dr. Greer has published extensively on his varied areas of research interest, which include malignant peritoneal mesothelioma; enhancing patient selection in cytoreductive surgery with and without hyperthermic intraperitoneal chemotherapy (HIPEC);[2] the molecular drivers of peritoneal metastasis; the role of immunotherapy in peritoneal malignancy; and clinical trials for gastric cancer, sarcoma, neuroendocrine tumors, and peritoneal surface malignancy.
Dr. Greer’s clinical expertise and research in the use of HIPEC make him a sought-after physician for patients seeking care for malignant peritoneal mesothelioma.
