Dr. Spiegel received his medical degree at McGill University in Montreal, Canada. After completing his residency in diagnostic radiology at New York University Medical Center in New York City, he completed fellowships in neuroradiology and surgical neuroangiography at the same institution. Prior to coming to Houston, he initiated neurointerventional programs at Yale University’s Hospital of Saint Raphael in New Haven, Conn., and later at Hartford Hospital, where he co-directed the Stroke Center.