Dr. Steven Xian

Orrin Devinsky is a Neurologist practicing medicine in New York, New York. Dr. Devinsky is highly rated in 31 conditions, according to our data. His clinical expertise encompasses Myoclonic Epilepsy, Dravet Syndrome, Seizures, Epilepsy, and Deep Brain Stimulation.

Horacio Kaufmann is a Neurologist practicing medicine in New York, New York. Dr. Kaufmann is highly rated in 12 conditions, according to our data. His clinical expertise encompasses Familial Dysautonomia, Hereditary Sensory and Autonomic Neuropathy Type 2, Hajdu-Cheney Syndrome, and Orthostatic Hypotension.

Andrew B. Lassman, MD, FAAN, FASCO, is a Professor of Neurology and Associate Dean of Clinical Research Compliance at the Columbia University Vagelos College of Physicians and Surgeons. Dr. Lassman also serves as Chief of the Division of Neuro-Oncology and Vice Chair for Clinical Research in the Department of Neurology, and as Associate Director for Clinical Trials at the Herbert Irving Comprehensive Cancer Center. As a clinician-scientist, Dr. Lassman focuses both his research and clinical efforts on improving the understanding and treatment of brain tumors.Dr. Lassman has particular expertise in translational clinical trials for brain tumors, with molecular correlative analyses to understand the reasons for treatment success or failure, and to refine treatment paradigms. Dr. Lassman has led retrospective studies, single institution prospective clinical trials, and multicenter prospective trials conducted nationally through the National Cancer Institute sponsored National Clinical Trials Network. His contributions to the field of Neuro-Oncology have been recognized with numerous awards, including the Preuss Award in Neuro-Oncology from the American Academy of Neurology, the Boyer Clinical Research Award from Memorial Sloan-Kettering Cancer Center, and the Gary Lichtenstein Humanitarian Award from Voices Against Brain Cancer.Dr. Lassman earned his BS and MS degrees in Molecular Biophysics and Biochemistry, as part of a combined four-year program at Yale University. He attained his MD from Columbia University College of Physicians and Surgeons and completed Neurology residency at the Neurological Institute of New York, at NewYork-Presbyterian/Columbia University Irving Medical Center. Dr. Lassman completed his fellowship in Neuro-Oncology at Memorial Sloan-Kettering Cancer Center, where he joined the faculty and served as fellowship director, until his return to NewYork-Presbyterian/Columbia University Irving Medical Center. Dr. Lassman is highly rated in 15 conditions, according to our data. His clinical expertise encompasses Astrocytoma, Glioblastoma, Glioma, and Gliomatosis Cerebri. Dr. Lassman is board certified in Neurology. Dr. Lassman is currently accepting new patients.