Portrait of Sara Lewin
ucsf logo

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 Graduate Medical Education

Residency

  • Internal Medicine, UCSF Graduate Medical Education

Internship

  • Internal Medicine, UCSF Graduate Medical Education

Degree

  • MD, UCSF School of Medicine

My expertise

Locations

    Reviews

    Average rating

    4.9
    4.9 out of 5 Stars
    128 ratings
    About provider reviews

    Showing 1-6 of 33 reviews

    Sort by
    • 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.

    • 5 out of 5 Stars
      December 12, 2025

      Dr Lewin is extraordinary!!!! I feel so fortunate to be under her care.

    • 5 out of 5 Stars
      November 4, 2025

      Dr. Lewin has been great in helping get my IBD issues under control. Medications and procedures prescribed have resulted in helping me get back to almost normal stage. Follow up medications and testing are planned to further improve these results. Really appreciate Dr. Lewin's care and professionalism.

    • 5 out of 5 Stars
      September 5, 2025

      Excellent caring physician. Very knowledgeable about treatment options.

    • 5 out of 5 Stars
      August 18, 2025

      Dr. Lewin has diagnosed and prescribed medication for me that I have not had the help with in many years! She is a Godsend!

    Please check with your health insurance plan regarding coverage for this type of care. Not all providers at UCSF Health are covered by every insurance plan.

    For informational purposes only, a link to the federal Centers for Medicare and Medicaid Services (CMS) Open Payments web page is provided here. The federal Physician Payments Sunshine Act requires that detailed information about payment and other payments of value worth over ten dollars ($10) from manufacturers of drugs, medical devices, and biologics to physicians and teaching hospitals be made available to the public.