Vice Chair, Department of Neurosurgery, Lenox Hill Hospital Director, Brain Tumor and Pituitary/Neuroendocrine Centers Lenox Hill Hospital/Manhattan Eye, Ear and Throat Hospital
Investigator, Brain Tumor Laboratory Feinstein Institure for Medical Research Professor of Neurosurgery and Otolaryngology Zucker School of Medicine at Hofstra/Northwell
SUNY Distinguished Professor, Medicine, University at Buffalo Founder & Medical Director, Diabetes-Endocrinology Center of Western New York Professor, Medicine, University at Buffalo