Dr. Arias received his Bachelor of Arts and Science from Washington University (WashU) in St. Louis and completed his Doctor of Medicine at Columbia University Vagelos College of Physicians and Surgeons in New York. He then returned to WashU for residency training in neurological surgery, which included a seven-month experience as registrar in neurological surgery at Beaumont Hospital in Dublin, Ireland.
 

He remained at WashU for an endovascular surgical neuroradiology fellowship at the renowned Mallinckrodt Institute of Radiology. He maintains a focus on cerebrovascular neurosurgery, with numerous research projects and publications in leading journals. In addition to his practice in Colorado, Dr. Arias also provides charitable neurosurgical care to children in the Dominican Republic. In his free time, he enjoys snowboarding, cycling, and hiking with his Bernese Mountain Dog.