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Andrew H. Ko


Colorectal and gastrointestinal cancer specialist
East Coast transplant and lover of piano, singing and sports

Dr. Andrew H. Ko is a specialist in colorectal and gastrointestinal cancers, with a particular focus on pancreatic cancer. He is interested in the development of new treatment strategies, including molecularly targeted therapies, which block cancer cell activity by interfering with specific molecules.

Ko earned an undergraduate degree in applied mathematics and biology at Brown University. He earned his medical degree at the Johns Hopkins School of Medicine. After a residency at Beth Israel Deaconess Medical Center, he completed a fellowship in medical oncology at Stanford University. He joined UCSF in 2001.

  • Education

    Johns Hopkins University, 1995

  • Residencies

    Beth Israel Hospital-Boston, MA, Internal Medicine, 1998

  • Fellowships

    Stanford University Medical Center, 2001

  • Board Certifications

    Medical Oncology, American Board of Internal Medicine

  • Academic Title


I am honored to partner with patients as I provide compassionate, thoughtful and cutting-edge care during a challenging time in their lives.

Where I see patients (2)

    My reviews


    Overall Experience
    204 Ratings
    About our process
    Nov 30, 2023
    I have the up most respect for Dr. Ko.
    Nov 09, 2023
    Dr Ko was amazing
    Oct 19, 2023
    Dr. Ko is prepared for our meetings. He's obviously reviewed my chart from our very first visit and speaks with knowledge about my treatment and response to treatment. I have never needed to remind Dr. Ko of something related to my cancer treatment.
    Oct 06, 2023
    I recommend UCSF and Dr. Ko regularly
    Sep 04, 2023
    I needed more specifics regarding the stage of my cancer and the prognosis based on the recommended treatment.
    Aug 17, 2023
    Doctor KO is a very good caring provider I would recommend him to others i!
    Aug 06, 2023
    Dr. Ko is very kind listens well and is an expert in his field.
    Aug 03, 2023
    Can't receive any better responses to my treatment.
    Jul 27, 2023
    I saw Dr. Andrew Ko for a second opinion about my terminal cancer. He had reviewed my history answered all of my questions and gave me really good advice.
    Jul 13, 2023
    Very pleasant knowledgeable and caring gentleman!
    Jun 15, 2023
    Dr. Ko listened to my concerns answered all questions. His knowledge about my condition was Impressive and he gave me important information that I really needed to know.
    Jun 04, 2023
    Doctor Ko is the best doctor I've ever had
    May 18, 2023
    My care provider is so easy to talk to!Even tho I was scared to talk to him at the beginning I feel very comfortable to talk to him now!
    Mar 28, 2023
    The visit was very helpful and I very much appreciated the opportunity to have the visit. I was able to gain some important understandings about my illness and its treatment.
    Mar 17, 2023
    Dr. Ko was very pleasant. I would have loved to have had an opportunity to sit and discuss options for dealing with my pancreatic cancer. He was very nice but I'm not sure how to implement some of the suggestions he gave me though some were great!
    Mar 07, 2023
    Would happily recommend Dr. Ko to others!
    Feb 11, 2023
    Dr. Ko and his supporting Fellow were the best.
    Jan 12, 2023
    Dr Ko is very thorough. I appreciate his patience in answering my questions and very clear / concise explanations.
    Jan 10, 2023
    I will highly recommend Dr KO . An excellent doctor love him
    Jan 05, 2023
    We had a great initial experience with Dr. Ko. His explanations were clear and concise and his discussion of treatment options was excellent.
    Dec 17, 2022
    Excellent consultation
    Nov 30, 2022
    Dr. Ko of UCSF is one of the best Drs I have ever encountered in my life; he is exceptional in every way and I appreciate his manner and how he regards me. I have come to trust him 100%.
    Nov 10, 2022
    Dr. Ko is the best!
    Oct 08, 2022
    I don't think UCSF has followed through with anything that might have actually helped me. They talk to me but have not done anything to help me.
    Oct 07, 2022
    Very individualistic approach for treatment thorough knowledge of subject clear analysis of problem and realistic approach to treatment with candid explanation of limitations of treatment.Treated with respect and compassion.
    Sep 29, 2022
    Dr Ko really knows how to deal with patients and make them less worried.
    Aug 23, 2022
    Dr Ko was thoroughly familiar with my medical history for this referral/ 2nd opinion meeting. Was both realistic and optimistic and made valuable suggestions regarding possible changes to the treatment scenario currently proposed by our Sutter oncologist. Furthermore he offered future assistance as necessary. We left meeting incredibly thankful that Dr Ko was willing to work with us!!!
    Aug 20, 2022
    Dr. Ko is confident and easily understood. He was a realist but also provided some hope.
    Aug 11, 2022
    All good
    Aug 06, 2022
    Kudos to Dr Ko !! He is intelligent thoughtful and methodical in his approach. He is very kind and listens to my concerns and questions. He spends sufficient time with me and I do not feel rushed during the appointment. He has read my chart before hand so he is familiar with my case and test results. His calm demeanor is appreciated. He communicates well and explains the problems and management plan clearly. I have full confidence in Dr Ko and know I am in expert hands.
    Jul 28, 2022
    Very understating and polite
    Jul 10, 2022
    I have been very lucky to have been treated by Dr. Ko for close to six years. He is remarkable caring supportive and vigilant in reviewing tests etc to monitor my so far the successful outcome of my treatment for cancer.
    Jul 08, 2022
    I have seen Dr. Andrew Ko since 2016. Without exception he has always been friendly understand and assuring. In one (critical) case he made an insightful medical decision that other doctors may have overlooked. At a personal level he's very understanding and easy to talk to. I want to share my and my family's appreciating without any reservation.
    Apr 09, 2022
    This was the best consultation I have ever received in or out of my own practice.
    Feb 08, 2022
    Dr. Ko was very concerned and empathetic
    Decorative Caduceus

    Testing the Use of the Usual Chemotherapy Before and After Surgery for Removable Pancreatic Can...

    Overall survival is defined as the time from randomization to death due to any cause. The median and 95% confidence intervals are estimated using the Kaplan-Meier estimator. The treatment arms will be compared using a stratified C...


    Decorative Caduceus

    Study of Avutometinib (VS-6766) +Defactinib With Gemcitabine and Nab-paclitaxel in Patients Wit...

    Assessment of Dose-limiting toxicities (DLTs)


    Decorative Caduceus

    A Study of Ivaltinostat Plus Capecitabine or Capecitabine in Metastatic Pancreatic Adenocarcino...

    The percentage of subjects who experience a grade 3 or higher adverse event that qualifies as a DLT


    Decorative Caduceus

    Trial of Ulixertinib in Combination With Hydroxychloroquine in Patients With Advanced Gastroint...

    To assess the efficacy of ulixertinib and hydroxychloroquine in patients with advanced, RAS, non-V600 BRAF, ERK, or MEK mutated gastrointestinal malignancies


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