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Sara Lewin



Dr. Sara Lewin is a gastroenterologist who specializes in caring for patients with inflammatory bowel diseases, disorders of the small intestine and nutritional deficiencies. In addition to evaluating patients in the clinic, she performs procedures to examine the digestive tract. These include upper endoscopy, colonoscopy, capsule endoscopy – in which the patient swallows a tiny camera that transmits images – and double-balloon enteroscopy, in which the doctor can enhance viewing by inflating balloons attached to the endoscope.

Lewin's research interests include improving care for hospitalized patients with gastrointestinal illnesses and the complications of inflammatory bowel disease.

Lewin earned her medical degree at UCSF, where she then completed a residency in internal medicine, followed by fellowships in gastroenterology and inflammatory bowel disease. She belongs to the American Association for the Study of Liver Diseases, American Gastroenterological Association, American College of Gastroenterology, American Society for Gastrointestinal Endoscopy and Northern California Society for Clinical Gastroenterology.

  • Education

    UCSF, 2012

  • Residencies

    UCSF, Internal Medicine, 2015

  • Fellowships

    UCSF, Gastroenterology, 2018

    UCSF, Inflammatory Bowel Disease, 2018

  • Board Certifications

    Gastroenterology, American Board of Internal Medicine

    Internal Medicine, American Board of Internal Medicine

  • Academic Title

    Assistant Professor

Where I see patients (2)

    My reviews


    Overall Experience
    119 Ratings
    About our process
    Jun 28, 2023
    She is very professional and was enthusiastic to help me. I opted out at this time for the treatment she would be providing only because my condition had improved after taking Budesonide for almost three months which was ordered by my gastroenterologist. Would definitely reconnect with her if the need arises.
    Jun 26, 2023
    Dr. Lewin is the best
    Jun 21, 2023
    Dr. Lewin was so kind warm and informative on issues I've experienced and new ways to help control symptoms I have. I'm so elated with the medication and information she prescribed to help control and help to make my life less stressful.
    Dec 11, 2022
    Dr. Lewin is fantastic physician. She listens thinks and plans many steps ahead and sincerely wants to collaborate. I wish all my physicians were as wonderful as she is.
    Dec 09, 2022
    Sara did a great job and is very knowledgeable
    Dec 07, 2022
    I'm grateful Dr Lewin is my doctor. She's kind smart extremely competent and an exceptionally clear and effective communicator
    Dec 05, 2022
    I feel very fortunate to have Dr Lewin. She has been excellent she's been correct on everything so far!
    Nov 30, 2022
    I'm so thankful and grateful to have such amazing care.
    Nov 18, 2022
    Great experience
    Oct 29, 2022
    I felt that my Doctor was very attentative to my health condition questionsand concerns that I had. I felt like I am in good hands which is such a relief!
    Oct 06, 2022
    Very pleased with Dr. Lewin and her team
    Oct 04, 2022
    Dr Lewin is very easy to talk to and I feel that she cares about me.
    Sep 09, 2022
    Felt comfortable speaking to both doctors
    Apr 02, 2022
    Provider was great
    Feb 16, 2022
    Terrific doctor!
    Dec 10, 2021
    Very thoughtful thorough and personable. Made me feel like she was listening to my concerns and addressed them. Made a point of asking if I had other concerns or questions several times during the appointment which was very kind of her and helpful.
    Nov 03, 2021
    I know my treatment plan and appointments have been scheduled.
    Sep 21, 2021
    I have a clear protocol to follow up with thanks to Dr. Sara Lewin.