UR Medicine / Neurosurgery / Services / Brain Tumor and Spinal Tumor Program / Our Team Our Team Director Kevin A. Walter, MD Neurosurgery Webster H. Pilcher, MD, PhD Tyler Schmidt, DO Howard Silberstein, MD G. Edward Vates, MD, PhD Catherine Hastings, ANP-C Susan O. Smith, ANP-C Neurooncology Joy Burke, MD David Korones, MD Nimish Mohile, MD Andrea Wasilewski, MD Michael White, MD Jacqueline M. Behr, RN, MS, FNP Jennifer N. Serventi, R-PAC, CCRP Radiation Oncology Michael T. Milano, MD, PhD Kenneth Y. Usuki, MD Endocrinology Laura Calvi, MD Oncology Social Worker Barbara K. Guttman, LMSW