Portrait of John I. Umekubo
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John I. Umekubo, MD

He | Him | HisInternal Medicine
Primary Care Hayes St.
415-379-2900
Portrait of John I. Umekubo
Portrait of John I. Umekubo
ucsf logo

John I. Umekubo, MD

He | Him | HisInternal Medicine
Primary Care Hayes St.
415-379-2900

On this page

About me

Dr. John I. Umekubo is a specialist in internal medicine who provides primary care. He is particularly interested in offering the latest treatments and improving outcomes for patients with chronic conditions, such as diabetes, high blood pressure, arthritis and Alzheimer's disease. He enjoys helping his patients achieve and maintain healthy lives.

Umekubo earned his medical degree from St. Louis University School of Medicine. At St. Mary's Medical Center (now UCSF Health Stanyan Hospital), he completed a residency in internal medicine.

Outside of work, Umekubo enjoys performing and listening to music, playing golf, drinking wine, learning about classic European automobiles, and spending time in nature.

This provider works with UCSF through the UCSF Health Community Medical Group, a multispecialty group connecting doctors and practices throughout the Bay Area.

Education & training

Board certification

  • Internal Medicine, American Board of Medical Specialties

Residency

  • Internal Medicine, St Mary Medical Center

Internship

  • Internal Medicine, St Mary Medical Center

Degree

  • MD, St Louis University School of Medicine

My expertise

Locations

    Reviews

    Average rating

    4.9
    4.9 out of 5 Stars
    77 ratings
    About provider reviews

    Showing 1-6 of 15 reviews

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    • 5 out of 5 Stars
      May 29, 2026

      Dr Umekubo is excellent. He takes the time to listen, helps patients/families to understand the issues and has great rapport

    • 5 out of 5 Stars
      May 27, 2026

      Dr Umekubo is the best and the standard for a caring internist

    • 5 out of 5 Stars
      May 24, 2026

      Dr Umekubo is truly the most dedicated doctor, he calls me on weekends or evenings to followup

    • 5 out of 5 Stars
      March 19, 2026

      Excellent care from Dr Umekubo

    • 5 out of 5 Stars
      February 19, 2026

      Dr Umekubo is an excellent physician! He is very professional, kind and knowledgeable.

    • 5 out of 5 Stars
      February 18, 2026

      I could not be more pleased with my primary care provider


    UCSF Health Medical Foundation providers offer multispecialty care throughout the Bay Area through the UCSF Health Community Medical Group, a Professional Corporation, or other local medical groups. They are not members of our academic faculty.


    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.