Dr. Mascitelli is a board-certified neurosurgeon who specializes in the surgical and endovascular management of cerebrovascular disorders. He completed a fellowship in endovascular neurosurgery at Mount Sinai Health System in New York, New York and a fellowship in cerebrovascular surgery at the Barrow Neurological Institute in Phoenix, Arizona. He is an assistant professor for the Department of Neurosurgery at the UT Health Science Center at San Antonio and the principle investigator of a multicenter, prospective registry of wide-neck intracranial aneurysms treated by both microsurgical and endovascular techniques. Dr. Mascitelli has substantial expertise in the surgical management of cerebrovascular disorders. He also performs clinical outcomes research studying the treatment of intracranial aneurysms and the surgical treatment of stroke caused by large vessel occlusion.