Cassius Iyad Ochoa Chaar, MD, MS, RPVI

Assistant Professor of Surgery (Vascular)

Physician Biography

Cassius Iyad Ochoa Chaar, MD, MS, is a vascular surgeon who treats a range of problems affecting the circulatory system. He has special expertise in treating peripheral artery disease, which can block blood flow in the arteries in the arms and legs. He is an expert in lower extremity limb preservation, particularly in diabetic patients.

“The most exciting breakthrough in vascular surgery has been the evolution of minimally invasive surgery that has transformed the specialty completely,” Dr. Chaar says. The vast majority of his patients now have minimally invasive endovascular surgeries, which involve accessing a damaged artery by making a puncture and inserting a wire and a catheter. But he still performs traditional open surgeries—with long incisions that allow him to view and treat problems directly. He sometimes uses a combination of approaches to treat complex cases.

An assistant professor of vascular surgery at Yale School of Medicine, Dr. Chaar says he was motivated to go into medicine when he was growing up and saw the positive impact a doctor had on his grandmother, who had complicated medical problems. “I wanted to be that person who touched peoples’ lives and made them better,” he says.

Dr. Chaar speaks Arabic, English, French and Spanish.

Patient Care

Accepts new patients? Yes
Patient Type: Adult; Geriatric
Referrals: From patients or physicians

Patient Care Organizations

Surgery: Vascular & Endovascular Surgery

Yale Medicine

Office of Cooperative Research

Board Certifications

  • Surgery, General AB of Surgery (2010)

  • Surgery, Vascular AB of Surgery (2012)

Clinical Trials

Conditions Study Title
Diseases of the Cardiovascular System ANCHOR (Aneurysm Treatment Using the Heli-FX Aortic Securement System Global Registry) (ANCHOR)
Diseases of the Cardiovascular System Predicting the Safety and Effectiveness of Inferior Vena Cava Filters (PRESERVE)

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Contact Info

Cassius Iyad Ochoa Chaar, MD, MS, RPVI
Patient Care Locations
Shoreline Foot and Ankle Center85 Poheganut Drive
Groton, CT 06340
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Lawrence & Memorial Hospital
365 Montauk Avenue

New London, CT 06320
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Yale Vascular SurgeryYale Physicians Building
800 Howard Avenue, Fl 2

New Haven, CT 06519
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Yale New Haven Shoreline Medical Center
111 Goose Lane

Guilford, CT 06437
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Office Location
Yale Vascular SurgeryBoardman Building
330 Cedar Street

New Haven, CT 06510
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Mailing Address
Vascular & Endovascular Surgery330 Cedar Street - Boardman Building 204
PO Box 208062

New Haven, CT 06520-8062

Curriculum Vitae