Dr. Roby Thomas

Daniel P. Petro, MD, is a medical oncologist and hematologist at Hillman Cancer Center. He treats all cancer types, and has a special interest in a multidisciplinary approach to thoracic malignancies. Dr. Petro is also heavily involved in the research of Phase I trials. Dr. Petro is rated as a Distinguished provider by MediFind in Gamma Knife Radiosurgery. His top areas of expertise are Lung Cancer, Non-Small Cell Lung Cancer (NSCLC), Pleuropulmonary Blastoma, Gamma Knife Radiosurgery, and Awake Craniotomy.

John C. Rhee, MD, is a medical oncologist and hematologist at UPMC Hillman Cancer Center. Dr. Rhee is skilled in the management of all forms of cancer and blood diseases, with particular interest in cancers of the gastrointestinal tract and chest, including colorectal, esophageal, gastric, pancreaticobiliary, liver, neuroendocrine, and lung tumors. Dr. Rhee is rated as a Distinguished provider by MediFind in Gamma Knife Radiosurgery. His top areas of expertise are Colorectal Cancer, Familial Pancreatic Cancer, Small Cell Lung Cancer (SCLC), Gamma Knife Radiosurgery, and Gastrostomy.

Zahra Rahman Kelly, DO, is a medical oncologist and hematologist at UPMC Hillman Cancer Center. Dr. Kelly is trained in the management of all cancers and blood disorders with a focus in genitourinary and head and neck malignancies.  Dr. Kelly is board-certified in nternal medicine and medical oncology and hematology. She received her medical degree from Philadelphia College of Osteopathic Medicine. Dr. Kelly completed both a residency in internal medicine and a fellowship in hematology/oncology at UPMC. She served as chief fellow during her final year of hematology/oncology fellowship. Her research interests include early phase clinical trial design and cancer immunotherapy combination trials. She has published papers in peer reviewed journals and is an active member of the UPMC Hillman protocol review committee where she reviews therapeutic oncology trials. She also collaborates with surgical oncologists and radiation oncologists to provide multidisciplinary care to her patients. Dr. Kelly is a member of the European Society of Medical Oncology, American Society of Medical Oncology, American Medical Association, and American Society of Hematology. Dr. Kelly is rated as an Advanced provider by MediFind in Gamma Knife Radiosurgery. Her top areas of expertise are Prostate Cancer, Familial Prostate Cancer, Febrile Neutropenia, Chronic Familial Neutropenia, and Gamma Knife Radiosurgery.