Dr. Arias received his Bachelor of Arts and Science from Washington University in St. Louis and completed his Doctor of Medicine at Columbia University College of Physicians and Surgeons in New York. He then returned to Washington University for residency training in Neurological Surgery, which included a seven-month experience as Registrar in Neurological Surgery at Beaumont Hospital in Dublin, Ireland. He then remained at Washington University for an Endovascular Surgical Neuroradiology fellowship at the renowned Mallinckrodt Institute of Radiology. He maintains a focus in cerebrovascular neurosurgery, with numerous research projects and publications in leading journals.

Thanks to Dr. Arias' training as both a neurosurgeon and endovascular neuroradiologist, he can provide both perspectives in a single sitting. This allows a comprehensive, unbiased perspective, offering both open surgical and minimally invasive endovascular approaches to cerebrovascular lesions, such as aneurysms, arteriovenous malformations, moyamoya disease, stroke, and carotid stenosis. Other areas of expertise include meningiomas, cervical spine disease, and minimally invasive spine surgery.