About Arminder Jassar, MBBS

Dr. Arminder Jassar focuses his clinical activities on aortic surgery in addition to the full spectrum of adult cardiac surgery. He is dedicated to providing the highest quality, patient centered care to every patient that he meets.  

Born and raised in India, Dr. Jassar earned his medical degree from the All India Institute of Medical sciences in New Delhi. He completed his general surgery residency and cardiac surgery fellowship at the University of Pennsylvania in Philadelphia. He did super specialty training at the University of Pennsylvania focusing on aortic and endovascular surgery, including TEVAR and TAVR. Following his training, Dr. Jassar was a visiting surgeon at the University of Freiburg, where he acquired advanced skills in hybrid aortic surgery.  Dr. Jassar is the co-director of the MGH Thoracic Aortic Center, Director of Quality and safety for Cardiac Surgery at MGH and Assistant professor of Surgery at the Harvard Medical School. 

He is keenly focused on the treatment of thoracic aortic disease – including surveillance for thoracic aortic aneurysms, traditional open aortic repair (from aortic root to thoracoabdominal aorta) and novel endovascular and hybrid therapies including thoracic endografting (TEVAR), which allow minimally invasive treatment of complex aortic pathology and affords patients a much quicker recovery and return to normal activities. He is actively involved in several clinical trials investigating the use of novel endovascular devices to treat aortic arch and descending aortic pathology, providing access to this cutting-edge technology for his patients. He is particularly interested in the care of patients with aortic dissection, which can be a lethal condition, and has developed care pathways to expedite care and improve outcomes of these patients. 

In addition to traditional, minimally invasive and transcatheter aortic valve replacement (TAVR), he also performs aortic valve repair for leaky aortic valves. With aortic valve repair, patient’s own aortic valve can be saved, thus avoiding the need for valve replacement. In patients with aortic root aneurysms, aortic valve can still be saved while replacing the aortic root aneurysm.  This is especially attractive for young patients as it precludes the need for reoperations associated with the use of tissue valves or the long-term use of blood thinners associated with mechanical valve replacement. He also specializes in surgery for endocarditis (infection of heart valves). He is part of the MGH drug use endocarditis team and is involved in efforts to improve care of patients who use injectable drugs – a pandemic that has ravaged young people in our region.

His research has been presented at numerous scientific meetings and published in reputed peer reviewed journals and he has been an invited speaker at several national and international meetings.

Clinical Interests:




Mass General Heart Center: Cardiac Surgery
55 Fruit St.
Boston, MA 02114
Phone: 617-726-8219

Medical Education

  • MBBS, All India Institute of Medical Sciences
  • Residency, Hospital of the University of Pennsylvania
  • Fellowship, Hospital of the University of Pennsylvania

American Board Certifications

  • Surgery, American Board of Surgery
  • Thoracic and Cardiac Surgery, American Board of Thoracic Surgery

Accepted Insurance Plans

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.


Dr. Jassar’s research interests range from developing novel imaging and therapeutic techniques for ischemic mitral regurgitation to outcomes of cardiac surgery in Jehovah’s Witness patients. Most recently, he has focused on investigating outcomes of complex aortic root and aortic arch surgery, with attention to various strategies of cerebral protection during circulatory arrest.


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