Portrait of Sara Lewin
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Sara Lewin, MD

Inflammatory Bowel Disease Gastroenterology • Gastroenterology
Gastroenterology Mount Zion
415-502-4444
Portrait of Sara Lewin
Portrait of Sara Lewin
ucsf logo

Sara Lewin, MD

Inflammatory Bowel Disease Gastroenterology • Gastroenterology
Gastroenterology Mount Zion
415-502-4444

On this page

About me

Dr. Sara Lewin is a gastroenterologist who specializes in caring for patients with inflammatory bowel diseases, disorders of the small intestine and general gastroenterology concerns. 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 clinical trials clinical trials for novel therapeutic agents for 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. 

Education & training

Board certification

  • Gastroenterology, American Board of Internal Med/Gastroenterology

Fellowship

  • Gastroenterology, UCSF School of Medicine -GME

Residency

  • Internal Medicine, UCSF School of Medicine -GME

Internship

  • Internal Medicine, UCSF School of Medicine -GME

Degree

  • MD, UCSF School of Medicine

My expertise

Locations

    Reviews

    Average rating

    4.9
    4.9 out of 5 Stars
    121 ratings
    About provider reviews

    Showing 1-6 of 37 reviews

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    • 5 out of 5 Stars
      March 16, 2026

      Dr. Lewin is the best! She answered all our questions, helping us pls our next steps and giving us peace of mind.

    • 4.8 out of 5 Stars
      March 3, 2026

      Hope I can see her again.

    • 5 out of 5 Stars
      March 1, 2026

      Dr. Lewin is an attentive and supportive physician. She provides information on the latest research and discusses clinical options. Dr. Lewin answers all questions with thought and care, never dismissive of concerns. She demonstrates the qualities of excellence in her field of practice and a wonderful bedside manner. I would highly recommend her services to family and friends.

    • 5 out of 5 Stars
      March 1, 2026

      Dr. Lewin exceeds my expectations ALWAYS!

    • 5 out of 5 Stars
      January 23, 2026

      Dr. Lewin exceeds my expectations. She is a keen listener, is extremely patient and compassionate. She never rushes through our meetings, answers all questions clearly, And explains things in an Easily and understandable way. I feel fortunate to be under her care!

    • 5 out of 5 Stars
      December 29, 2025

      Very good experience talking with Doctor Lewin.

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