Portrait of Diana Thiara
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Diana Thiara, MD

Internal Medicine • Obesity MedicineMedical Director, Weight Management Program
General Internal Medicine Mount Zion – 1600 Divisadero St.
415-353-7900
Portrait of Diana Thiara
Portrait of Diana Thiara
ucsf logo

Diana Thiara, MD

Internal Medicine • Obesity MedicineMedical Director, Weight Management Program
General Internal Medicine Mount Zion – 1600 Divisadero St.
415-353-7900

On this page

About me

Dr. Diana Thiara is an internal medicine doctor who provides primary care to adults. In addition, she specializes in caring for patients who are overweight or obese, and has a particular interest in helping them focus on nutrition and lifestyle adjustments to optimize their health. She serves as medical director for UCSF's weight management program.

In her research, Thiara focuses on developing lifestyle modification programs for patients who are overweight or obese.

Thiara earned her medical degree from Vanderbilt University School of Medicine. She completed a residency in internal medicine at UCSF.

Education & training

Board certification

  • Obesity Medicine, American Board of Obesity Medicine
  • Internal Medicine, American Board of Internal Medicine

Fellowship

  • Internal Medicine, UCSF Graduate Medical Education

Residency

  • Internal Medicine, UCSF Graduate Medical Education

Internship

  • Internal Medicine, UCSF Graduate Medical Education

Degree

  • MD, Vanderbilt University

My expertise

Locations

    Reviews

    Average rating

    4.8
    4.8 out of 5 Stars
    130 ratings
    About provider reviews

    Showing 1-6 of 20 reviews

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    • 5 out of 5 Stars
      January 13, 2026

      Dr. Thiara always listens to my concerns and makes useful recommendations for moving forward. At this visit, all my past concerns had been successfully handled and we moved on to new ones for which she had a great course of action to move ahead.

    • 5 out of 5 Stars
      January 13, 2026

      I love Dr Thiara!

    • 5 out of 5 Stars
      January 6, 2026

      Dr Thiara is very attuned to my concerns, is caring, friendly. She should give trainings to the new doctors on patient care.

    • 5 out of 5 Stars
      December 16, 2025

      Thank you very much, my doctor Diana Thiara is very excellent who helped me in my sick case, she stood by me in my illness and advised me, I wish her all the success and success

    • 5 out of 5 Stars
      December 5, 2025

      Dr. Thiara is kind and compassionate in addition to being an excellent physician.

    • 5 out of 5 Stars
      November 29, 2025

      Very good experience

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