Timothy K. Liem M.D., M.B.A., F.A.C.S.

Photo of Timothy K. Liem, M.D., M.B.A., F.A.C.S.
Faculty profile

Professor of Surgery, Division of Vascular Surgery School of Medicine

Accepting new patients

4.8 out of 5 (237 Ratings, 66 Comments)


  • Surgery

Special focus on

  • Endovascular Surgery
  • Surgery
  • Vascular Surgery


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

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

    • General Surgery, Vascular Surgery, American Board of Surgery



Dr. Timothy Liem is a professor of surgery at OHSU where he is a vice-chair for quality in the OHSU Knight Cardiovascular Institute. He received an undergraduate degree in biomechanical engineering from the University of California at San Diego, and he received his medical degree from the University of Southern California. He completed his general surgery training at Kaiser Foundation Hospitals, and his vascular surgery residency at the University of Missouri-Columbia. In 2015, he received his MBA in healthcare management from OHSU. Dr. Liem is board-certified in general surgery and vascular surgery. He is a member of the Society for Vascular Surgery, the Midwestern Vascular Surgical Society, the Western Vascular Society, the International Society for Thrombosis and Haemostasis, and Alpha Omega Alpha. He is on the editorial board and a reviewer for numerous medical journals, and has authored or co-authored over 80 book chapters and peer-reviewed articles. He lectures across the country on topics including venous thromboembolism, anticoagulation and venous duplex imaging. Dr. Liem sees patients in the OHSU Vascular Surgery Clinic at the Physician’s Pavilion, and in the Vein Clinic at South Waterfront.

Read more


  • English

Memberships and associations

  • Fellow, American College of Surgeons

Patient Ratings

4.8 out of 5 (237 Ratings, 66 Comments)

The patient ratings score is an average of all responses to the question "How likely would you be to recommend this provider to your family and friends (on a scale of 0 to 10)" on our nationally-recognized NRC patient surveys.

Patient Comments

  • Feb 22, 2019


  • Feb 14, 2019

    My experience with the doctor is very, very good. Very pleasant. Very kind, and the assistant also seems excellent to me.

  • Feb 10, 2019

    I was a bit concerned with the state of the skin in my ... in my mouth and they kind of blew over it. I don't know if they're hoping that treatment take care ... will take care of it or not, but it was a little discerning.

  • Feb 09, 2019

    Dr. Liem is a genuinely kind man and an incredible doctor that has done some amazing work on my fistulas and has and been creative and helpful for successful fistulas and blood flow to have good treatment and I am very grateful for that.

  • Feb 09, 2019

    I found Dr. Liem to be very thorough, very helpful with any questions I had. He's very kind and I enjoyed talking with him. And I believed him to be a very good doctor, very good.

  • Feb 08, 2019

    Thorough. Efficient. Understanding.

  • Feb 08, 2019

    Dr. Liem was very helpful in calming me down from my situation [Name]'s bypass. He had all the knowledge he needed to pass to me and did it well. He was a very likable guy and and knew what he was talking about made it easy for a common man to understand it. I'm much at ease. Thank you.

  • Feb 05, 2019

    Comfortable and friendly

  • Feb 04, 2019

    He listens well, makes sure he understands what you are saying, and thoroughly responds to questions. He's a good communicator. Yet he was efficient. I felt confident in his clinical knowledge. He shared how many of the type of procedures he performs and discussed outcomes.I've a long history of working professionally with physicians. This is the kind of physician I wish most patients could experience.

  • Feb 03, 2019

    Going into the surgery I had expectations of pain during and after. Not only was my pain minimal during but also almost nonexistent after. I appreciated all my procedure questions being answered thoroughly by both Dr. Liam and his assistant

  • Feb 01, 2019

    I had a very positive experience. Every single staff member that I met was kind and caring. I have worked in health care for many years and this is by far the best organized hospital. I felt that the provider took the time to listen to my issues and had a plan of care for me. I give 110% to this provider and every staff member. Very pleased and at ease.

  • Feb 01, 2019

    Having been a patient for a number of years, I will attest to the kindness and professional standing of the physicians and staff of OHSU vascular department. I hold each as friends. I've never been disappointed in any way. Thanks to all.

  • Jan 20, 2019

    Dr. Liem is a good, caring doctor. He was running late, but he takes time with the patient

  • Jan 15, 2019

    I would just like to say that he was very very helpful. And he's a very good doctors Dr. Anytime I've seen him he's been willing to answer any questions I asked and the most of the time is it Answers, I want to hear. but whether or not so good that you just tell me the truth and I realize that that's about all I have for now.

  • Jan 13, 2019

    Dr Liem was very polite, explained everything, considerate.

  • Jan 12, 2019

    Very open, honest and thorough.

  • Jan 05, 2019

    The doctor was great his assistant was as well . My only issue was I was very nervous for my procedure and it's very nerve racking laying there for two hours and painful having something to relax me would have been helpful.

  • Dec 16, 2018

    Very informative very professional

  • Dec 16, 2018

    The entire staff makes you feel comfortable .Very accurate, very coordinated, on time, very knowledgeable, very professional.

  • Dec 14, 2018

    Always friendly, almost always on time..

  • Dec 07, 2018

    Informative regarding POC and prognosis. Compassionate and excellent communication skills and practice.

  • Dec 06, 2018

    This provider Dr Liem is very accurate in his health assessments, has a great attitude about explaining the existing problems and various things that could arise if problems are not corrected.Is very direct and does not beat around the bush and answer my questions in a way I can understand them.

  • Dec 02, 2018

    He was great! Very nice and thorough.

  • Nov 30, 2018

    Always been positive and is probably the best doctor we have had since being in Oregon with my elderly parents in the past four years.

  • Nov 29, 2018

    Yeah, I thought the Dr. Liem was - is a very good doctor and he was truthful with me and he apologized, that you know the news I had was more on the on the bad side than the good side, but that was not his fault - he just told me the truth and he apologized a couple of times, and I appreciate that, and I think he's very good doctor.

  • Nov 10, 2018

    Excellent doctor that listens and takes his time. Really seems to care about the patient.

  • Nov 09, 2018

    Dr. Liem is an excellent physician. He's very personable, he's very knowledgeable, he cares about his patients and he's just a real good doctor.

  • Nov 04, 2018

    Thoughtful, respectful, knowledgeable

  • Nov 02, 2018

    Dr. Liem is very excellent and I would recommend them to anyone. I enjoy seeing them and we look forward to our visits.

  • Oct 27, 2018

    Well, I think is a very good doctor. Very respectful, very excellent and a very good person, very professional. I' very glad that he is my doctor and I will take him again.

  • Oct 26, 2018

    Very pleasant and knowledgeable.

  • Oct 19, 2018

    It was great as usual!

  • Oct 12, 2018

    He certainly read his notes from last time! His demeanor was friendly and approachable.

  • Oct 12, 2018

    Everyone was very cordial, professional and accommodating.

  • Oct 06, 2018

    Extremely knowledgeable, spent time answering all of my questions and educating me regarding my condition, extrembly thorough and approachable

  • Sep 19, 2018

    Dr. Liem has been been my doctor/surgeon for since January 2017. He is an outstanding doctor & person. I am very thankful for him.

  • Sep 09, 2018

    i felt he listened to me and explained everything clearly

  • Sep 07, 2018

    I found Dr. Liem very helpful, very concerned about my medical condition and that he took time and patience to talk to me about the symptoms and the concerns of my blood pressure that I had. I appreciated his interest in me as a person.

  • Sep 06, 2018

    I really did like the fact that he is such a good doctor. He helped me out. He did what I needed to have him do. I am a very appreciative of him and all the gentlemen and ladies who helped him out while I was in the hospital. He was very helpful this time around as well. Thank you.

  • Aug 30, 2018

    Always addresses my concerns with layman terms for me to understand.Impressed with his great knowledge concerning medical issues.

  • Aug 18, 2018

    Dr Liem has been helping me with a few different vascular issues over the past few years. He really listens to what you say, doesnt rush you through the appointments, and answers all your questions thoroughly in easy to understand terms. Dr Liem is very compassionate and down to earth... hes definitely one of most favorite doctors ever. (I really dislike surveys but given an opportunity to rave about his care, Ill answer a survey for him anytime :)

  • Aug 13, 2018

    On time, compassionate and thorough.

  • Aug 10, 2018

    I enjoyed my experience my with Dr. Limb and I hope and pray that other people enjoy him also. Thank you.

  • Jul 28, 2018

    Dr. Liem is thorough and caring as he listens to questions and answers them so you can understand. He makes sure you are at ease and comfortable. Great experience!

  • Jul 28, 2018

    He remembered me, was personable as well as professional. He was an excellent communicator.

  • Jul 27, 2018

    Very informative and helpful.

  • Jul 26, 2018

    Dr. Liem was very professional and friendly today as is always the case. He is very considerate and carefully contemplates patient concerns and discusses all issues with me. I find him to be a most gracious listener.

  • Jul 20, 2018

    Dr. Liem was familiar with my health record and was attentive to my description of my current situation. He evaluated the most recent vascular ultrasound data and compared it with previous tests. He examined me with care and explained his findings; he also explained clearly what I can do to keep my condition from deteriorating.

  • Jul 17, 2018

    Dr. Liem seemed to be extremely competent and skilled and told me exactly what to expect. He also has great patient communication skills. This combination is difficult to find in a doctor. I also have to mention he has a great staff who were very attentive and would call me back promptly to answer my many questions. He did not reply to one of my mychart messages and when I followed up with the clinic, I actually got a call from the doctor himself! Most doctors don't reach out to their patients, I was very impressed.

  • Jul 13, 2018

    Yes, I just want to say that Dr. Liem is probably the best doctor I have ever had and we are very pleased with what kind of quality of life he has given me. Thank you.

Make an Appointment

503 494-7593

Physician Referrals

503 494-4567 800 245-6478

I see patients at