William Yoon, M.D.

William J. Yoon, M.D.


Vascular Surgery




  • Assistant Professor, Department of Surgery


To see if William J. Yoon is accepting new patients, or for assistance finding a UC Davis doctor, please call 800-2-UCDAVIS (800-282-3284).

Lawrence J. Ellison Ambulatory Care Center

4860 Y St., Suite 2100
Sacramento, CA 95817
Driving Directions

Primary Phone:

Additional Phone Numbers

Clinic Fax: 916-734-1020
Physician Referrals: 800-4-UCDAVIS (800-482-3284)

Philosophy of Care

I am dedicated to providing personalized, comprehensive vascular care, with approach rooted in the most advanced and least invasive treatment options. I believe that understanding the patient experience from the patient's perspective is critical in delivering high quality care. I put a high value on open communication with my patient and their family members to achieve optimum treatment outcomes.

Clinical Interests

Dr. Yoon has a special interest in the endovascular treatment of aortic diseases, including thoracic aortic aneurysms, acute and chronic type B aortic dissection, and abdominal aortic aneurysms. In addition to traditional vascular surgery fellowship training, he received advanced specialized endovascular training for aortic disease and have extensive experience in fenestrated and branched endovascular aortic aneurysm repair. As such, his practice includes the treatment of complex aneurysm cases that employs personalized fenestrated endografts.

As an aortic surgeon trained in the most current and cutting-edge procedures, his focus is on integrating new technology and innovation into his clinical practice. He is also actively involved in clinical trials of new therapies and devices, so his patients may have access to innovative leading-edge treatments not available at other medical centers.

Research/Academic Interests

Dr. Yoon's research focuses on advancing endovascular management of thoracic and abdominal aortic disease. As reflected in his PhD thesis at the Department of Vascular Surgery, Uppsala University, Sweden, his research goal is to obtain further understanding on the aorta, especially on the aortic arch and supra-aortic branches, as well as on the current anatomic barriers to endovascular repair of thoracic and abdominal aortic disease. Ultimately, he aims to develop a thoracic endovascular aortic surgery planning software that would simplify preoperative thoracic endovascular aortic surgery planning process, with potential for shorter and more precise procedures and better long-term results, which represent a crucial frontier in advancing the treatment of thoracic aortic pathologies.


Vascular Surgery

Center/Program Affiliation

Vascular Center
Cardiovascular Services


M.D., Virginia Commonwealth University School of Medicine, Richmond VA 2011

Ph.D., Advancing Endovascular Management of Thoracic Aortic Disease, Uppsala University, Uppsala, Sweden 2025 (anticipated)

B.S., University of Connecticut, Storrs CT 2007

Internship: General Surgery, St. John Hospital & Medical Center, Detroit MI 2011-2012


General Surgery, St. John Hospital & Medical Center, Detroit MI 2012-2016


Vascular Surgery, Loyola University Medical Center, Stritch School of Medicine, Maywood IL 2016-2018

Advanced Aortic Endovascular Surgery Visiting Fellowship, Paracelsus Medical University Klinikum Nurnberg Sud, Nuremberg, Germany, 2018

Advanced Aortic Surgery Visiting Fellowship, Uppsala University Hospital, Uppsala, Sweden, 2018

Board Certifications

American Board of Surgery - General Surgery,

American Board of Surgery - Vascular Surgery,

CA Medical Board, License,

Registered Physician in Vascular Interpretation,

Professional Memberships

American College of Surgeons

California Medical Association

European Society for Vascular Surgery

Midwest Surgical Association

Midwestern Vascular Surgical Society

Sierra Sacramento Valley Medical Society (SSMS)

Society for Clinical Vascular Surgery

Society for Vascular Surgery

Vascular and Endovascular Surgery Society

Honors and Awards

Best Paper Award, Vascular and Endovascular Surgery Society Annual Meeting, 2018

John L. Keeley Surgical Fellowship Award, Loyola University of Chicago Medical Center, 2018

Best Chief Surgical Resident-Anthony B. Chambers Award, St. John Hospital & Medical Center, 2016

Society for Vascular Surgery Vascular Annual Meeting Travel Scholarship, 2013, 2014

Medical Student Training in Aging Research Scholarship, American Federation for Aging Research-National Institute on Aging, 2008

Graduated Magna Cum Laude in Molecular and Cell Biology, University of Connecticut, 2007

Phi Beta Kappa Honor Society, inducted, 2006

New England Scholar Award, University of Connecticut Honors Program, 2004, 2005, 2006, 2007

John R. Wooden Scholarship, 2004

University of Connecticut Leadership Scholarship, 2003, 2004, 2005, 2006, 2007

Select Recent Publications

Yoon WJ, Mell M. Outcome comparison of thoracic endovascular aortic repair performed outside versus inside proximal landing zone length recommendation. J Vasc Surg. 2020 Apr 11;S0741-5214(20)30487-0. doi:10.1016/j.jvs.2020.03.033. Online ahead of print.

Yoon WJ. Fenestrated endovascular aneurysm repair versus snorkel endovascular aneurysm repair: competing yet complementary strategies. Vasc Specialist Int. 2019 Sep;35(3):121-128. doi:10.5758/vsi.2019.35.3.121. Epub 2019 Sep 30.

Yoon W, Dresher M, Crisostomo P, Halandras P, Aulivola B. Delineating the durability outcome differences after saphenous ablation with laser versus radiofrequency. J Vasc Surg Venous Lymphat Disord. 2019 Jul;7(4):486-492. doi:10.1016/j.jvsv.2018.11.013. 

Yoon W, Crisostomo P, Halandras P, Bechara C, Aulivola B. The Use of the Agatston Calcium Score in Predicting Carotid Plaque Vulnerability. Ann Vasc Surg. 2019 Jan;54:22-26. doi:10.1016/j.avsg.2018.08.070. Epub 2018 Sep 10.

Yoon W, Halandras P, Aulivola B, Crisostomo P. Malignancy does not affect outcomes of pharmacomechanical thrombolysis in symptomatic iliofemoral deep vein thrombosis. Ann Vasc Surg. 2018 Aug;51:234-238. doi:10.1016/j.avsg.2018.01.081. Epub 2018 Mar 5.

Laczynsk D, Yoon W, Halandras P, Bechara C, Aulivola B, Crisostomo P. Long-standing inferior vena cava filter with strut extrusion and retrieval using a rotating dilator sheath. J Vasc Surg: Venous and Lym Dis. 2018 Mar;6(2):300. doi:10.1016/j.jvsv.2017.12.051.

Yoon W, Dresher M, Crisostomo P, Halandras P, Aulivola B. Delineating the durability outcome differences after saphenous ablation with laser versus radiofrequency. J Vasc Surg. 2017 Aug;66(2):e22-e23. doi:10.1016/j.jvs.2017.06.013.

Yoon W, Aulivola B. Vascular injury during anterior spine exposure. In Eskandari M, Pearce W, Yao J (eds). Current Vascular Surgery: 42nd Northwestern Vascular Symposium. PMPH-USA, Shelton. 2017 Dec;39:405-416.

Yoon W, Conley A, Herrera S, Van Dorp D, Lorelli D. Ruptured mycotic abdominal aortic pseudoaneurysm in a patient on hemodialysis complicated with oxacillin-resistant Staphylococcus aureus bacteremia. Ann Vasc Surg. 2016 Aug;35:204.e1-4.  doi:10.1016/j.avsg.2016.01.027. Epub 2016 May 26.

Yoon W, Lorelli D. Avoiding the use of a femoral bridging catheter in selected patients using a 2-stage Hemodialysis Reliable Outflow (HeRO) graft implantation technique. J Vasc Access. 2015 Jan;16(3):189-194. doi:10.5301/jva.5000325.