Dr. Shirnett K. Williamson is the medical director of Radiation Oncology Services at Capital Health. She is a board certified radiation oncologist who specializes in CyberKnife®, external beam radiation using intensity modulated radiation therapy (IMRT), (Volumetric modulated arc therapy) VMAT, 3D conformal treatments, and high dose rate (HDR) brachytherapy treatments. She is also the current chair of the cancer committee at Capital Health.