School of Medicine
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Seema Nagpal, MD
Clinical Assistant Professor, Neurology & Neurological Sciences
Current Research and Scholarly Interests I'm a board certified neuro-oncologist who treats both primary brain tumors as well as metastatic disease to the brain and nervous system. My research concentrates on clinical trials for patients with late-stage central nervous system cancer. I have a special interest in leptomeningeal disease, a devastating complication of lung and breast cancers. I collaborate with Stanford scientists to detect this disease earlier, and with our breast and lung oncologists to improve outcomes for patients.
Valerio Napolioni, PhD
Instructor, Neurology & Neurological Sciences
Current Research and Scholarly Interests My research is focused on the genetic underpinnings of common complex neuropsychiatric disorders with an emphasis on evolutionary/adaptive effects of gene variants. Given the incredible complexity underlying human neurobehavioral traits, I strongly believe in the necessity of applying a multidisciplinary approach that may involve genetics, neuropsychiatry, ecology, immunology and sociology. Currently I’m working on X-chromosome wide association studies, aiming to get a better understanding of sex-specific differences in the susceptibility to neuropsychiatric conditions.
Viet Nguyen, MD
Clinical Associate Professor, Neurology & Neurological Sciences
Bio Dr. Viet Nguyen's clinical practice consists of:  Intraoperative Neurophysiologic Monitoring (IONM): Dr. Nguyen was fellowship-trained at Stanford in Clinical Neurophysiology, with an emphasis in IONM, after which he was hired as faculty to help run Stanford's IONM service. The service uses somatosensory and motor evoked potentials (SSEP, MEP), electroencephalography (EEG), electromyography (EMG), and brainstem auditory evoked potentials (BAEP) in over 1200 cases per year at SHC and LPCH, to help minimize risk in procedures that endanger the nervous system. These include surgeries and endovascular procedures for cerebral aneurysms, arteriovenous malformations (AVMs), carotid stenosis, brain and spinal tumors, spinal deformities (e.g. scoliosis, spinal stenosis), peripheral nerve injury and tumors, aortic aneurysms, trigeminal neuralgia, facial dystonia, and others. He has published, presented research, and lectured at national and international meetings on IONM topics, and is active in multiple professional organizations in the field, including the American Clinical Neurophysiology Society, Society of Clinical Neurologists, and American Academy of Neurology.  The Stanford Spasticity Clinic: Dr. Nguyen runs the Stanford Spasticity Clinic, treating patients with multiple sclerosis, stroke, cerebral palsy, or dystonia (cervical, facial, and limb) using EMG-guided botulinum toxin injections, medications, and physical/occupational therapy.  The Stanford Center for Concussion and TBI: Dr. Nguyen treats patients with concussion or traumatic brain injury (TBI), both non-sports and sports related, including varsity and professional athletes. He works to educate patients, families, and the public on properly recognizing and recovering from traumatic brain injuries.