Michael Palmer, MD

Marie Kate Gurka, M.D., is a radiation oncologist in the Department of Radiation Oncology at the Johns Hopkins Kimmel Cancer Center at Sibley Memorial Hospital and a clinical associate in the Department of Radiation Oncology at The Johns Hopkins Hospital. Dr. Gurka has expertise in radiation treatment for breast cancer and gynecologic cancers. Dr. Gurka earned her medical degree from Virginia Commonwealth University and completed a residency in radiation oncology at Georgetown University Hospital. She previously served as an instructor in the Department of Radiation Oncology at University of Louisville and has conducted both clinical and basic science research. Her work has been recognized by the American Society for Radiation Oncology (ASTRO), and the American Society of Clinical Oncology (ASCO), and it has been cited in various lectures, research articles, and textbooks. Washingtonian Magazine and Bethesda Magazine have repeatedly named Dr. Gurka a Top Doctor.

Dr. Stephen C. Greco is a radiation oncologist at Sibley Memorial Hospital and the director of the department of radiation oncology at Suburban Hospital. Dr. Greco practices out of Sibley’s Prostate Cancer Multidisciplinary Clinic in Washington, D.C. and Suburban Hospital in Bethesda, MD.Dr. Greco has an expertise in various kinds of cancer, including lung, liver, pancreatic and prostate. He has clinical interests in conformal radiation treatment techniques and prostate cancer treatment, including prostate seed implantation. Dr. Greco earned his undergraduate degree from the University of Virginia and his medical degree from Louisiana State University School of Medicine, where he also completed an internship in internal medicine. Dr. Greco completed his residency in radiation oncology at Baylor College of Medicine. Dr. Greco has been named a Top MD by Consumers’ Checkbook Magazine and was named one of the Top Doctors in the Washington D.C., Baltimore and Washington-Baltimore areas by Castle Connolly in 2012. He is a member of the American Society of Clinical Oncology.Dr. Greco has been involved with a clinical trial for “Radiation and Androgen Ablation for Prostate Cancer.” Dr. Greco was also named the 2015 Best Consulting Physician at Suburban Hospital by Johns Hopkins Medicine Clinical Awards for Physicians and Care Teams.Make A Gift

Rukmalee Vithana is a pediatric cardiologist in Baltimore, Maryland. Dr. Vithana completed a residency in pediatrics at Children's National Hospital and a pediatric cardiology fellowship at Children's Hospital of Pittsburgh of UPMC. She earned her medical degree from the University of Arizona College of Medicine.