Viviane Tabar Chair, Department of Neurosurgery; Theresa Feng Chair in Neurosurgery Mark H. Bilsky William E. Snee Chair; Vice Chairman of Clinical Affairs, Neurosurgery; Chief, Multi-Disciplinary Spine Tumor Service Cameron W. Brennan Attending Neurosurgeon Ori Barzilai Director of Minimally Invasive Spine Oncology Nelson Moss Co-Director, Multidisciplinary Brain Metastasis Program Marc A. Cohen Surgical Director, Pituitary & Skull Base Tumor Center; Medical Director, Patient Access Services (PAS) Rabih Bou Nassif Instructor Eliza B. Geer Medical Director, Pituitary & Skull Base Tumor Center Jeffrey P. Greenfield Associate Attending Neurosurgeon Andrew Lin Associate Attending Neurologist William Christopher Newman Assistant Attending Neurosurgeon Kenny Kwok Hei Yu Instructor Samuel H. Selesnick Attending Surgeon Mark M. Souweidane Attending Neurosurgeon Book traversal links for Department of Neurosurgery Previous Our Expertise Next The Multidisciplinary Brain Metastasis Clinic