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William Yoon, MD, PhD

William Yoon, MD, PhD

Office Locations

UH Cleveland Medical Center Mather (0 mi.)

11100 Euclid Ave
Mather Ste 1800
Cleveland, OH 44106

UH Ahuja Medical Center (7 mi.)

3999 Richmond Rd
Beachwood, OH 44122

UH Cleveland Medina Health Center (29 mi.)

4001 Carrick Dr
Ste 140
Medina, OH 44256

Biography: William Yoon, MD, PhD


  • Aortic Aneurysm Disease
  • Aortic Dissection
  • Carotid Artery Disease
  • Complex Fenestrated and Branched Endovascular Repair
  • Mesenteric artery disease
  • Renal Artery Disease


  • Co-Director, Aortic Disease Program, Harrington Heart and Vascular Institute, University Hospitals
  • Co-Director, Aortic Center, Harrington Heart and Vascular Institute, University Hospitals
  • Associate Professor of Surgery, CWRU School of Medicine
  • Clinical Associate Professor of Surgery, CWRU School of Medicine

Certifications & Memberships

  • Vascular Surgery - American Board of Surgery
  • Surgery - American Board of Surgery


Fellowship | Advanced Aortic Endovascular Surgery
Advanced Aortic Endovascular Surgery - Nuremberg Hospital North (2018 - 2018)

Fellowship | Vascular Surgery
Vascular Surgery - Loyola University Medical Center (2016 - 2018)

Residency | General Surgery
General Surgery - St John Hospital And Medical Center (2011 - 2016)

Other Education
Uppsala Universitet (2024)

Medical Education
Virginia Commonwealth University School Of Medicine (2011)

University Of Connecticut (2007)


William J. Yoon, MD, PhD, is a vascular surgeon, endovascular specialist and co-director of the Aortic Center at University Hospitals Harrington Heart & Vascular Institute. He is also an Associate Professor of Surgery at Case Western Reserve University.

Dr. Yoon earned his medical degree from the Virginia Commonwealth University School of Medicine. He completed an internship and residency in general surgery at St. John Hospital and Medical Center in Michigan, before completing a fellowship in vascular surgery at Loyola University Medical Center in Illinois. Dr. Yoon completed two additional fellowships, the first in advanced aortic surgery from Uppsala University Hospital in Sweden and the other in advanced aortic endovascular surgery from Paracelsus Medical University in Germany. Dr. Yoon received his PhD (2023) from Uppsala University, Uppsala, Sweden, which is recognized around the world as a leading, first-class research university dedicated to advancing science (vascular surgery). His research focuses on advancing endovascular management of aortic disease and collaborates with the Centre of Excellence in aortic disease that is run by Uppsala University and Uppsala University Hospital. He received 14 honors and awards over the course of his training for academic and clinical excellence. Prior to joining University Hospitals Harrington Heart & Vascular Institute, Dr. Yoon served as Clinical Director of the Aortic Program for NorthShore University Health System.

Dr. Yoon provides the full spectrum of care for patients with vascular disease, with particular focus on achieving optimal outcomes and improved quality of life for his patients. He has special expertise in the treatment of complex aortic diseases using branched and fenestrated endografts. He is also an active researcher, with emphasis on activities related to the care of patients with complex aortic pathologies.

From the beginning of his tenure as a practicing surgeon, Dr. Yoon has exceled, having performed the first double inner branched endovascular aortic arch repair in Illinois, the first 4-vessel fenestrated endovascular aortic repair (FEVAR) at UC Davis Medical Center in California, and the first stent-assisted balloon-induced intimal disruption and re-lamination in aortic dissection repair (STABILISE) for the treatment of complicated type B aortic dissections in the entire Pacific Northwest region of the United States.

Dr. Yoon has presented at over 50 national and international conferences, authoring more than 30 peer-reviewed articles, abstracts and book chapters. He is a reviewer for the Annals of Vascular Surgery, Journal of Endovascular Therapy and Journal Vascular. In addition, he is a member of several distinguished organizations including the American College of Surgeons, Vascular and Endovascular Surgery Society, Society for Vascular Ultrasound and Society for Vascular Surgery.

Industry Relationships

University Hospitals is committed to transparency in our interactions with industry partners, such as pharmaceutical, biotech, or medical device companies. At UH, we disclose practitioner and their family members’ ownership and intellectual property rights that are or in the process of being commercialized. In addition, we disclose payments to employed practitioners of $5,000 or more from companies with which the practitioners interact as part of their professional activities. These practitioner-industry relationships assist in developing new drugs, devices and therapies and in providing medical education aimed at improving quality of care and enhancing clinical outcomes. At the same time, UH understands that these relationships may create a conflict of interest. In providing this information, UH desires to assist patients in talking with their practitioners about industry relationships and how those relationships may impact their medical care.

UH practitioners seek advance approval for certain new industry relationships. In addition, practitioners report their industry relationships and activities, as well as those of their immediate family members, to the UH Office of Outside Interests annually. We review these reports and implement management plans, as appropriate, to address conflicts of interest that may arise in connection with medical research, clinical care and purchasing decisions.

View UH’s policy (PDF) on practitioner-industry relationships.

As of December 31, 2016, William Yoon did not disclose any Outside Relationships with Industry.