Timothy K. Liem, M.D., M.B.A., F.A.C.S. (he/him)

  • Professor of Surgery, Division of Vascular Surgery, School of Medicine


Dr. Timothy Liem is a vascular surgeon and professor of surgery in the Division of Vascular Surgery in the OHSU School of Medicine. He is also vice chair for quality at the OHSU Knight Cardiovascular Institute.

Dr. Liem is a reviewer and member of the editorial board for numerous medical journals. He has authored or co-authored more than 80 book chapters and research articles. He lectures across the country on topics that include venous thromboembolism, anticoagulation and venous duplex imaging.

He earned his M.D. degree from the University of Southern California. He completed his general surgery training at Kaiser Foundation Hospitals in Los Angeles and his residency in vascular surgery at the University of Missouri-Columbia. He completed a fellowship in vascular radiology also at the University of Missouri-Columbia.

Dr. Liem sees patients at the OHSU Knight Cardiovascular Institute Vascular Surgery Clinic located on the 6th floor of CHH1 at OHSU's South Waterfront campus, as well as at the adjacent Vein Clinic located on the same floor. He also sees patients two days a week at Tuality Digestive Health & General Surgery in Hillsboro, Oregon.

Dr. Timothy Liem's published research

Education and training

    • B.A., 1986, University of California, San Diego, Jacobs School of Engineering, Bioengineering
    • M.D., 1990, University of Southern California
    • M.B.A., 2015, Oregon Health & Science University
  • Residency

    • General Surgery, Kaiser Foundation Hospitals, Los Angeles, Calif., 1990-1995
    • Vascular Surgery, University of Missouri, Columbia, Mo., 1995-1997
  • Fellowship

    • Vascular Radiology, University of Missouri-Columbia, Columbia, Missouri, 1997-1999
  • Certifications

    • American Board of Surgery, General Surgery, 1996, 2005, 2016
    • American Board of Surgery, Vascular Surgery, 1998, 2007

Memberships and associations:

  • Fellow, American College of Surgeons
  • Society for Vascular Surgery
  • Western Vascular Society
  • American Venous Forum
  • Midwestern Vascular Surgical Society
  • International Society for Thrombosis and Haemostasis
  • Pacific Northwest Vascular Society
  • Oregon Medical Association
  • University of Missouri Surgical Society

Areas of interest

  • Venous disease, thromboembolic disorders, cerebrovascular disorders, peripheral artery disease, aneurysm diseases

Honors and awards

  • Alpha Omega Alpha
  • Distinguished Fellow, Society for Vascular Surgery
  • Distinguished Service Award, Department of Surgery, OHSU
  • Award for Outstanding Contribution in Clinical Care Quality, Professional Staff, OHSU


Elsevier pure profile


  • {{ pub.journalAssociation.journal.name.text[0].value }}