Cassius Chaar MD, MPH, MS, RPVI

Cassius Iyad Ochoa Chaar, MD, MPH, MS, is an associate professor of surgery in the division of vascular surgery and endovascular therapy. He is seeing patients at the Yale Physicians Building. He is board-certified in general surgery and vascular surgery, and is a registered vascular specialist in the interpretation of vascular laboratory studies. Dr. Chaar’s clinical interests include peripheral artery disease (PAD), focusing on patients with critical limb ischemia and limb salvage, varicose veins, aortic and visceral aneurysms, carotid disease, deep vein thrombosis, and dialysis vascular access. He completed his graduate and medical degrees at the American University of Beirut, Lebanon. He spent his general surgery residency at Yale-New Haven Hospital, and subsequently finished a fellowship in vascular and endovascular surgery at the University of Pittsburgh Medical Center.

As a recent graduate from the Yale School of Public Health (MPH 2023), Dr. Chaar has established extensive collaborations to study clinical genetics of vascular disease, explore applications of artificial intelligence to improve vascular care, and assess new technologies that enhance vascular surgery treatments. He mentors and trains MD/PhD students interested in surgical outcomes research, genetic research, and quality improvement related to surgical therapies.