Jonathan B. Greer, M.D. is an assistant professor of surgery within the Johns Hopkins Department of Surgery. Dr. Greer’s areas of clinical expertise include colorectal cancer, cytoreductive surgery, gastric and gastroesophageal cancer, gastrointestinal cancers, gastrointestinal stromal tumor (GIST), general surgery, hepatobiliary and pancreatic surgery, pancreatic cancer, hyperthermic intraperitoneal chemotherapy (HIPEC), neuroendocrine tumors, sarcoma, primary peritoneal mesothelioma, pseudomyxoma peritonei and tumors of the appendix.

Dr. Greer received his undergraduate and medical degrees from Brown University in Providence, Rhode Island. He completed a residency in general surgery at the Massachusetts General Hospital/Harvard Medical School in Boston. He performed a research fellowship in immunology at Memorial Sloan Kettering Cancer Center, in New York, and a clinical fellowship in complex general surgical oncology at the University of Pittsburgh Medical Center.

Dr. Greer is a member of the Association of Academic Surgeons, the American College of Surgeons, and the Society of Surgical Oncology.

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