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Karin Gaensler



Dr. Karin Gaensler is a specialist in cancers of the blood who has a special interest in gene therapy. She is currently working to develop novel approaches for treating blood disorders caused by a specific gene mutation.

Gaensler earned her medical degree from Harvard Medical School. She then went on to complete her residency in internal medicine and a fellowship in hematology and oncology at UCSF.

Gaensler has received numerous awards, including a fellowship from the American Cancer Society, a fellowship from the Howard Hughes Medical Institute and a physician-scientist award from the National Institutes of Health.

  • Education

    Harvard Medical School, 1981

  • Residencies

    UCSF, Medicine, 1984

  • Fellowships

    UCSF, Oncology, 1987

    UCSF, Hematology, 1987

  • Board Certifications

    Internal Medicine, American Board of Internal Medicine

    Medical Oncology, American Board of Internal Medicine

    Hematology, American Board of Internal Medicine

  • Academic Title


  • Languages




Where I see patients (1)

    My reviews


    Overall Experience
    70 Ratings
    About our process
    Oct 20, 2023
    She is always open and always listens to our concerns
    Sep 22, 2023
    Dr. Gaensler is the most caring doctor I have ever had and I trust her completely. She is amazing - knowledgeable kind sympathetic and overall the best!
    Sep 15, 2023
    It's Karin Gaensler need I say more?
    Aug 20, 2023
    Dr. Gaensler is an excellent heme onco.... She is not a warm and fuzzy type doc. However I have always got the impression that she is very smart and probably one of the best heme oncologists at UC (hopefully). She does not waste time during the appt.
    Jul 05, 2023
    I love Dr Gaensler! It is obvious she cares and always refers me for additional tests or IVs as necessary. I wish all of my dr were as professional and caring!
    Jun 30, 2023
    She was clear and precise
    Jun 19, 2023
    Excellent would be a better category
    Jun 16, 2023
    Dr. Gaensler listened carefully to me answered my questions and hope for the future
    Apr 02, 2023
    Excellent interested caring helpful knowledgeable
    Feb 26, 2023
    Dr Gaensler is simply the best doctor ever!
    Dec 11, 2022
    The best care anywhere!
    Nov 20, 2022
    Best Doctor I have. Very attentive to me.
    Nov 19, 2022
    Dr Gaensler is amazing! Best doctor ever
    Nov 13, 2022
    Oct 03, 2022
    Very informative and helpful
    Jun 03, 2022
    In total it was an unsatisfying phone appt.Doc seemed rushed. .Only mildly helpful visit
    Mar 11, 2022
    All excellent