Chronic liver disease is one of the most common causes of premature death in Americans. My career goal is to improve the outcome of individuals with chronic liver disease by identifying the optimal means for diagnosis, monitoring, treatment and prevention. The path I have chosen to achieve this goal is through engagement in clinical epidemiology and patient-oriented, effectiveness research.

Since the development of the MELD score which recognizes the importance of renal function in the prognosis of patients with end stage liver disease, one of the areas that we have had intense interest has been acute and chronic renal injury in patients undergoing liver transplantation. Liver transplantation represents a unique opportunity for research, because of the potential for reversal of the renal injury as well as access to biological materials.

Professional Summary

Professional Education
  • Fellowship: Mayo Graduate School of Medicine (1998) MN
  • Fellowship: Mayo Graduate School of Medicine (1997) MN
  • Residency: University of Arkansas for Medical Sciences Medical Center (1994) AR
  • Professional Education: University of Pennsylvania (1992) PA
  • Residency: Seoul National University Hospital (1990)
  • Internship: Seoul National University Hospital (1987)
  • Medical Education: Seoul National University (1986)
  • Board Certification: American Board of Internal Medicine, Gastroenterology (1998)
  • M.B.A., Wharton School, University of Pennsylvania, Health Care Administration (1992)
  • M.Sc., Seoul National University, Clinical Research (1990)
  • M.D., Seoul National University, Medicine (1986)

Administrative Appointments
  • Chief, Division of Gastroenterology & Hepatology, Department of Medicine, Stanford Unversity (2013 - Present)


Clinical Trials

Clinical trials are research studies that evaluate a new medical approach, device, drug, or other treatment. As a Stanford Health Care patient, you may have access to the latest, advanced clinical trials.

Open trials refer to studies currently accepting participants. Closed trials are not currently enrolling, but may open in the future.

Practice Locations

Digestive Health Center in Redwood City Redwood City, CA
Redwood City, CA

420 Broadway Street, Pavilion D, 2nd Floor

Redwood City , CA 94063

(650) 736-5555

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Advanced Endoscopy in Palo Alto Stanford, CA
Stanford, CA

300 Pasteur Drive, Ground Floor

Stanford , CA 94305

(650) 736-5555

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Liver Transplant Program in Reno, 880 Ryland Street Reno, NV
Reno, NV

880 Ryland Street

Reno , NV 89502

(650) 725-1988

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Liver Transplant Program in Chico CHICO, CA

1601 Esplanade, #3

CHICO , CA 95926

(650) 725-1988

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Liver (Hepatology) Clinic in Redwood City Redwood City, CA
Redwood City, CA

420 Broadway Street, Pavilion D, 2nd Floor

Redwood City , CA 94063

(650) 498-7999

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Stanford Primary Care in Santa Clara Santa Clara, CA
Santa Clara, CA

2518 Mission College Boulevard, Suite 101

Santa Clara , CA 95054

(408) 688-9720

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Patient Ratings

(61 Ratings)

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The Patients Ratings and comments are gathered from our Patient Satisfaction Survey and displayed in their entirety.

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Patient Reviews

(62 reviews)

Dr. Kim is a fantastic doctor. Been grateful to have him as a doctor since the beginning of my care at Stanford.
Good listener ! Has good information .Nice man , I feel like he wants to help me . I trust him as my Dr .
Dr. Woong KIm excellent medical doctor he has knowledge and explain very thoroughly the issues for the patient.
Excellent care
Dr. Woon Kim was helpful and professional in providing second opinion. I am pleased with the visit with Dr. Kim.
Good caring doctor
Dr. Kim is an excellent doctor who's very detailed and explained my test results clearly. He also shows he's care of my well being. I would definitely recommend Dr. Kim to others.
Very professional and knowledgeable, gave me a good information about the matter of my video consultation.
He is an excellent, knowledgeable, and friendly doctor
Thank you.
He is the best hepatologist.
Dr. Kim is very experienced and knowledgeable. The communication in this visit is pretty good. I'm clear about next steps. Look forward to next visit.
Dr. Kim is wonderful! I would give him the highest rating. He listens, is understanding, empathetic. I’m trying to navigate an unexpected and serious health issue and am fortunate to have him on my team.
I am di grateful I am under his care, always giving me great support, all my questions are answered. Just grateful and blessed ti be under his care.
Dr. Kim comes to the interview having reviewed all the records, relates that information in an understandable manner and gives guidelines to maintain health that are helpful. It's reassuring to be under his care.
Dr. Kim is excellent. I have no complaints about him.
Excellent, knowledgeable, patient with great Communication skill, and of course he make me felt that he is a very caring physician!
He is very kind and always asks if I had any question before we end the meeting.
Dr. Kim is an amazing caring professional. The best there is. I like him because he is probably the most humble person I have ever encountered and he truly cares. I was amazed at how he knew everything about me and recalled our last visit. Top notch. If you are lucky enough to get Dr. Kim, he is the best, hands down.
Dr. Kim communicated clearly, I had no issues understanding him. I like his confidence, and mannerism.
Dr. Kim showed compassion to patients concern and needs. He is very bright and eager to help patient. Excellent bedside manners.
Very informative, helpful and pleasant and easy to converse with him. I liked him very much. He was very thorough in discussing my health issues..past and futures expectations.
He is a excellent doctor.
Dr. Woong Ray Kim is God sent !! Always easy to connect with prompt answers. I am truly blessed to be under his care. He is always in full knowledge of my condition and his explanation is easy to understand . The Best experience!!
Dr. Kim listen very carefully to all my concerns
Very kind and takes time with you - very happy with Dr. Kim, he's been taking real good care of my husband.
Thanks for video advice.
It was a pleasure meeting Dr. Woong. He was very informative and took time to answer all my questions.
thanks again
Good experience.
Both Dr. Kim and NP Ms. Greksouk are very well & knowledgeable in their professional fields. I'm very thankful to have office visits to both of them.
Very informative, patient & friendly. I felt no rush at this visit.
Dr. Kim is an excellent specialist.
Dr. Kim was excellent. Great conversation.
I feel so lucky to be under his care and confident I am well look after.
loved the entire staff
Dr. Kim is the BEST overall physician we have experienced at Stanford! He is compassionate, incredibly knowledgeable, and willing to work for his patient best interests. OUTSTANDING in every measure.
Dr. Kim is great. I have faith in what he tells me.
Great, took the time explaining using drawings and even videos.
Dr. Kim showed concern, very professional, courteous.
Great Experience
We appreciate that the doctor pressured us to do a surgery. It helped us A LOT that the doctor recommended doing a test before contenplating surgery.
Dr. Kim related well with both our 18 year old daughter and us, as her parents.
Dr. Woong had an excellent patient doctor manner. Easy to talk with and very compassionate.
All of the staff that tended to me were very kind and generous. They treated me with good mercy.
All good.
Dr. Woong Ray Kim went out of his way to accommodate my needs. I appreciate all his effort and concern for me.
Excellent doctor.
Dr. Ray Kim showed sincere empathy on the patients health problem.
Bad experience.
Everyone is the best.
My options were explained in full and Dr. R. Kim gave his professional opinion.
Dr. Kim was above & beyond superb - a PARTNER in my health situation, which was v. unusual. Question: Why do you NOT call these superb professionals what they are? They are professionals NOT "provider" <- a disgusting & degrading term.
He poked me 6-8 times. Poked me. Saw 0 zero NONE test results, but decided I have fibromyalgia! When I said, "is this not code for a problem patient we can't diagnose?" He said "yup.
I met with Doctor Kim 2nd time. During 1st as well 2nd visits his attention to me was very kind and professional. Thank you very much Doctor Kim.
Explanation of the origin of my health problem was complete and logical. Information for follow-up care also was complete and trustful.
Dr. Kim is a great to Stanford Health Care his compassionate care sets the standard others should be judged by.
Very nice to communicate sometimes with mother tongue language.
Dr. Jim is very relatable and patient.

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