Welcome to the Brain and Spine Institute of New York and New Jersey Arien Smith, MD, FACS, is a fellowship-trained and board-certified neurosurgeon at the Brain and Spine Institute of New York and New Jersey, with locations across New York City in Midtown East, Manhattan, and Bayside, Queens, and Bayonne and East Brunswick, New Jersey. His practice includes treating both adult and pediatric spinal and brain disorders. Dr. Smith graduated from Yale University Medical School of Medicine in 2003. He then completed a neurosurgical residency at Mount Sinai Medical Center Department of Neurosurgery. He rounded out his medical training with an additional orthopedic complex spine fellowship at Beth Israel Medical Center in New York. Today, Dr. Smith performs surgical procedures at several top tier hospitals in the New York and New Jersey area. Because of his medical background, Dr. Smith has a unique combination of subspecialty training in both orthopedic and neurosurgical spine surgery and treats a wide range of spinal and brain disorders. He also brings to the practice his years of experience in pediatric and adult deformity and scoliosis surgery.