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Britt Tonnessen, MD

Associate Professor of Surgery (Vascular); Associate Program Director, Vascular Residency, Vascular Surgery and Endovascular Therapy; Associate Professor, Surgery

Contact Information

Britt Tonnessen, MD

Patient Care Location

Mailing Address

  • Vascular Surgery & Endovascular Therapy

    330 Cedar Street, Boardman 204

    New Haven, CT 06510

    United States



Dr. Tonnessen graduated from Brown University with honors in Neuroscience in 1994. She subsequently received her medical degree at the Mayo Clinic in Rochester, MN. She completed a residency in general surgery and fellowship in vascular surgery at the Ochsner Clinic in New Orleans, and has been a practicing vascular surgeon since 2006. Dr. Tonnessen is board certified in general and vascular surgery, and is a Fellow of the American College of Surgeons.

Dr. Tonnessen has expertise in both open surgery and minimally invasive "endovascular" procedures for treating vascular disease. Dr. Tonnessen is also the co-author of the 5th and 6th editions of The Handbook of Patient Care Vascular Diseases, a popular "pocket" book for students and residents.

Education & Training

  • Fellow
    Ochsner Clinic (2006)
  • Resident
    Ochsner Clinic (2004)
  • MD
    Mayo Clinic (1999)
  • BSc (Hon)
    Brown University, Neuroscience (1994)

Honors & Recognition

AwardAwarding OrganizationDate
Top Doctor 2020Connecticut Magazine2020

Departments & Organizations