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Stefan a Cadag, DO

Stefan a Cadag, DO

Please contact to confirm appointment availability

Optum Provider

Please contact to confirm appointment availability

Specialty

Internal Medicine, Endocrinology Diabetes & Metabolism

Languages

English

Seeing patients at

Patient Reviews

Patient review summary

Learn about our survey

5

4

3

2

1

4.7

142 reviews

    • Reviewed on May 23, 2026
    • Verified Review

    Listens and answers questions. Knows me as a person. Upbeat attitude and very positive.

    • Reviewed on May 22, 2026
    • Verified Review

    He is kind, courteous, compassionate, very knowledgeable, a wonderful doctor.

    • Reviewed on May 11, 2026
    • Verified Review

    Already referred him

    • Reviewed on Apr 29, 2026
    • Verified Review

    He knows what he is doing

    • Reviewed on Apr 29, 2026
    • Verified Review

    He took the time to answer my questions and did not rush me.

    • Reviewed on Apr 25, 2026
    • Verified Review

    He is very good endo

    • Reviewed on Apr 25, 2026
    • Verified Review

    Medically informed, pleasant

    • Reviewed on Apr 23, 2026
    • Verified Review

    Dr. Cadag is is uniquely qualified. Extremely intelligent, professional, calm, thorough, thoughtful & and kind personality.

    • Reviewed on Apr 22, 2026
    • Verified Review

    He is on top of my doctors 🥼 lists and always on time

    • Reviewed on Apr 21, 2026
    • Verified Review

    He is very thorough and concerned about my health, and makes recommendations to improve my situation

    • Reviewed on Apr 18, 2026
    • Verified Review

    Great physician. Very easy to talk to. Very knowledgeable

    • Reviewed on Apr 17, 2026
    • Verified Review

    Doctor is excellent he is caring. He is kind and he treats you with great respect. He’s very knowledgeable and I’m extremely happy with him and would recommend him to all my friends and family.

    • Reviewed on Apr 12, 2026
    • Verified Review

    Very professional

    • Reviewed on Apr 11, 2026
    • Verified Review

    HE IS EXPERT !

    • Reviewed on Apr 10, 2026
    • Verified Review

    Excellent doctor, professional and respectful

    • Reviewed on Apr 10, 2026
    • Verified Review

    Very understanding of medical needs, Very professional

    • Reviewed on Apr 10, 2026
    • Verified Review

    Dr. Cagad helped me to finally understand Hypothyroidism....

    • Reviewed on Apr 8, 2026
    • Verified Review

    Dr. Cadag bedside manner is the worse I've ever experienced. Dismissed on concerns of health and falsely documenting statements i did not share

    • Reviewed on Apr 5, 2026
    • Verified Review

    I tried to tell Stefan some of my concerns and he did not listen. It was as if he had what he was going to say prepared regardless of what I had to say. I felt he spoke to me in a patronizing manner. Some of the issues I came to him with I have done in depth, scholarly research on to which he said here was no relation, which to me shows he also does not stay current on research in his field.

    • Reviewed on Mar 29, 2026
    • Verified Review

    Great attention to details, good communications, shows genuine patient care

Page 1 of 8
  • Gender

    Male

    Board certifications

    American Board of Internal Medicine

    Licenses

    CA, 20A14859, 14859

    Employed or contracted

    Employed

    Network Name

    OptumCare HealthCarePartners California

    NPI

    1841408721

  • Medical School

    • Arizona College Osteopathic Medicine

      2000

    Residency

    • Beth Israel Medical Center (New York, NY)

      Internal Medicine

      2005

    Internship

    • Beth Israel Medical Center (New York, NY)

      2004

    Fellowship

    • Beth Israel Medical Center (New York, NY)

      2008