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Cassius Iyad Ochoa Chaar

Associate Professor of Surgery (Vascular)



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 a 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 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 University of Pittsburgh Medical Center.

Education & Training

  • MPH
    Yale School of Public Health , Biostatistics (2023)
  • Fellow
    University of Pittsburgh Medical Center (2011)
  • Chief Resident
    Yale New Haven Hospital (2009)
  • Resident
    Yale New Haven Hospital (2008)
  • Post-Doctoral research fellow
    Cleveland Clinic Foundation (2004)
  • MD
    American University of Beirut (2002)
  • MS
    American University of Beirut (2000)

Honors & Recognition

AwardAwarding OrganizationDate
John N Forrest, Jr Mentorship AwardYale School of Medicine2023
Quality Improvement Grant Vascular Study Group of New England 2023
SVS Clinical Research Seed GrantSociety for Vascular Surgery2021
VSGNE Quality Improvement GrantVascular Study Group of New England2021
Juzzo Traveling fellowshipAmerican Venous Forum2021
CT Innovations Biopipeline AwardCT Innovations2020
Academic Development AwardDepartment of Surgery2020
Charles W Bohmfalk AwardYale School of Medicine2020
EJ Wylie Traveling FellowshipSociety for Vascular Surgery2020
Quality Improvement AwardVascular Student Group of New England (VSGNE)2019
Yale CBIT clinical pilot project AwardYale University2015
OHSE Surgical Research AwardYale Department of Surgery2012

Departments & Organizations