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Andrew H. Ko
5.0 out of 5 (213)
Andrew H. Ko

Andrew H. Ko, MD

Gastrointestinal Medical Oncology

Gastrointestinal Medical Oncology Clinic
1825 Fourth St., Fourth Floor,
San Francisco, CA 94158
+1 more location
(415) 353-9888
5.0 out of 5 (213)
Virtual visits available
5.0 out of 5 (213)
Virtual visits available
Gastrointestinal Medical Oncology Clinic
1825 Fourth St., Fourth Floor,
San Francisco, CA 94158
+1 more location
(415) 353-9888

Dr. Andrew H. Ko is a specialist in digestive system cancers. He provides compassionate and individualized care for patients with cancers of the pancreas, stomach and esophagus.

In research, Ko has long been active in developing and evaluating new treatments for gastrointestinal cancers, including molecularly targeted agents and immune-based therapies.

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

  • Board Certifications

    American Board of Internal Medicine, Medical Oncology, 2002

  • Fellowships

    Stanford University Medical Center-GME, Medical Oncology & Hematology, 2001

  • Residencies

    Beth Israel Deaconess Medical Center, Internal Medicine, 1998

  • Internship

    Beth Israel Deaconess Medical Center, Internal Medicine, 1996

  • Education

    Johns Hopkins University School of Medicine, 1995

  • Languages

    English

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

Conditions I specialize in

Treatments I provide

Where I see patients (2)

    My reviews

    5.0

    Overall Experience
    213 Ratings
    About our process
    Mar 27, 2025
    I have already recommended Dr. Ko to a childhood friend who may have cancer and need treatment. He is an excellent physician.
    Mar 27, 2025
    Dr Ko is a highly skilled professional with excellent communication skills.
    Feb 27, 2025
    As a patient (with Stage IV cancer), I have to tell you Dr. Ko is very a patient listener and also compassionate. He explains his reasoning and logic behind the recommended treatment (against other alternatives I asked about) clearly. That's Important for me. Thank you, Dr. Ko.
    Feb 27, 2025
    Dr Ko is amazing. He treats the patient as a person and is genuinely concerned about them and how they are feeling, not just focused on fixing them.
    Feb 27, 2025
    I cannot say enough good things about Dr. Andrew Ko. I am lucky enough to have had Dr. Ko's care and guidance during my journey with colorectal cancer. Now nine years cancer free I have been - and will always be - grateful to have had Dr. Ko as my oncologist. I am most grateful that he respected and supported how I needed to face the journey. I felt, from the start, that I had a partner through the all of what had to be done. And he has never failed to be that. No question but that fighting cancer takes courage. Knowing that Dr. Ko had my back lightened the load. I will be ever grateful.
    Feb 20, 2025
    Dr. Ko is the best of the best. He oversees my care with goals in mind and explains a clear strategy to get there. I want to be very aggressive with my cancer and he has supported me every step of the way. He has accurately predicted my response to chemotherapy and has inspired me to have a very positive attitude by letting me know what to expect during treatment and he has reassured me about all of my concerns. Dr. Ko is a very gifted, honest and compassionate oncologist.
    Feb 20, 2025
    Dr. Ko made me feel heard, seen and like a whole person not just my "illness." He is excellent at listening and giving thorough description, details and made me feel warm and welcome.
    Feb 13, 2025
    Dr.Ko is very professional,empathetic and detail oriented.
    Feb 07, 2025
    Competent and excellent sense of humor
    Jan 30, 2025
    I really liked Dr. Ko. He was personable, articulate, and very reassuring (but not misleadingly so). I felt much better after speaking with him.
    Jan 30, 2025
    I so appreciate my physician who listens, explains, is kind and caring and is so smart and direct. I have enormous confidence in my doctor and I am so grateful. I am very fortunate to be a patient of Dr. Ko.
    Jan 22, 2025
    Dr Ko is a great listener, and was respectful of my unusual situation
    Jan 07, 2025
    Outstanding care
    Dec 19, 2024
    Dr. Ko is excellent and very compassionate and explains things very well.
    Dec 19, 2024
    Dr. Ko has incredible depth, and vast knowledge and experience. He is caring, an excellent listener and a skilled communicator who has a unique ability to frame complex information in a clear, understandable way. I felt cared about and cared for. I have so much confidence in my treatment going forward because of Dr. Ko.
    Nov 23, 2024
    Dr. Ko is a really nice person and doctor. He listened and explained to me very patiently and carefully. He's awesome.
    Nov 21, 2024
    Very nice provider. Very caring.
    Nov 19, 2024
    Andrew Ko is the best in all ways an oncologist should be both by advanced knowledge and empathetic patient care
    Nov 03, 2024
    Dr. Ko is a superb oncologist.
    Oct 16, 2024
    Dr. Ko is amazing and gave me hope when I thought there was none. He also encouraged me to live my life to the fullest extent possible during treatment and to stay active and social as long as my friends are not sick with colds or viruses.
    Oct 08, 2024
    Dr Ko is exceptional and has always made me feel like a "special" patient
    Sep 24, 2024
    Dr. Ko is a fabulous provider!
    Sep 17, 2024
    Outstanding communication by all.
    Jul 16, 2024
    Dr. Ko offers ideas and hope!
    Jul 09, 2024
    Dr. Ko is a personable, knowledgeable and professional medical contact for me. I trust and respect him. No criticisms from me.
    Jul 06, 2024
    Excellent care and compassion
    Jul 03, 2024
    So much respect and love for Dr Ko. He's a very special doctor
    Jun 29, 2024
    Dr. Ko is the best!
    Jun 21, 2024
    For the type of cancer I experienced you cant find better than Andrew Ko
    May 28, 2024
    Dr. Ko is great!!! He listens intently, and is a very kind Dr.
    May 02, 2024
    Dr. KO has been an exceptional care provider towards me
    Apr 28, 2024
    It was a very good experience
    Apr 18, 2024
    Both Dr. Feng and Dr. Ko are very easy to understand and take time to listen and answer all my questions.
    Mar 19, 2024
    Wonderful experience (as always!)!
    Nov 30, 2023
    I have the up most respect for Dr. Ko.
    Nov 09, 2023
    Dr ok 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

    Selected research

    See all research
    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...

    Recruiting

    Decorative Caduceus

    A Study of the Efficacy and Safety of Adjuvant Autogene Cevumeran Plus Atezolizumab and mFOLFIR...

    Recruiting

    Decorative Caduceus

    The PLATINUM Trial: Optimizing Chemotherapy for the Second-Line Treatment of Metastatic BRCA1/2...

    Will be assessed by the proportion of patients who achieve complete response (CR) or partial response (PR) per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1) during the protocol treatment. Fisher's exact te...

    Recruiting

    Decorative Caduceus

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

    Assessment of Dose-limiting toxicities (DLTs)

    Recruiting

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