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Ethan Thien Nguyen, MD

Ethan Thien Nguyen, MD

Please contact to confirm appointment availability

Optum Provider

Please contact to confirm appointment availability

Specialty

Internal Medicine

Languages

English, Vietnamese

Seeing patients at

Patient Reviews

Patient review summary

Learn about our survey

5

4

3

2

1

4.4

104 reviews

    • Reviewed on May 30, 2026
    • Verified Review

    informative on my blood test results

    • Reviewed on May 29, 2026
    • Verified Review

    Comfortable

    • Reviewed on May 28, 2026
    • Verified Review

    Ethan was friendly, knowledgeable, and very responsive. He provided excellent service and made the process smooth and stress-free. I highly recommend him.

    • Reviewed on May 26, 2026
    • Verified Review

    Dr Nguyen is a kind & compassionate Dr.He listens and evaluates what the problem is and then gives advice!

    • Reviewed on May 23, 2026
    • Verified Review

    Courteous and knowledgeable. He genuinely cares

    • Reviewed on May 23, 2026
    • Verified Review

    Dose not explain properly to answers doesn’t smile. Dose not have nots with him when coming to visit patient . Stand still no action .

    • Reviewed on May 21, 2026
    • Verified Review

    Did a thorough job

    • Reviewed on May 20, 2026
    • Verified Review

    Scheduled blood test but didn't send lab order. .Sent me to a Dermatologist but thet didn't take my insurance. After last visit sent me to surgery center but they didn't have any xrays and they don't do mamagrams.

    • Reviewed on May 8, 2026
    • Verified Review

    Very many reasonss

    • Reviewed on May 5, 2026
    • Verified Review

    Dr Nguyen is a new provider for me. [omitted] is still out on our relationship. Had Dr Kobayashi for 20 years.

    • Reviewed on May 2, 2026
    • Verified Review

    He recommended more exercise! I always expect doctors to push medications but instead he suggested working my body harder. And he was right. I’m more inclined to take his advice because of this.

    • Reviewed on May 1, 2026
    • Verified Review

    Very patient, thorough and knowledgeable. Takes needed steps and time to listen and explain issues, if any

    • Reviewed on Apr 30, 2026
    • Verified Review

    I like his bedside manner and he informs me of all that's going on with me

    • Reviewed on Apr 30, 2026
    • Verified Review

    Dr Nguyen is professional, caring and listens well to me. I think he would do the same for any of his patience.

    • Reviewed on Apr 20, 2026
    • Verified Review

    Seems to be a really caring Dr and has kept on top of my needs better than any other dr I have ever had!

    • Reviewed on Apr 18, 2026
    • Verified Review

    he is precise and knowledgeable

    • Reviewed on Apr 15, 2026
    • Verified Review

    He was very informative and professional.

    • Reviewed on Apr 12, 2026
    • Verified Review

    He’s very nice but I wish he would be more assertive. Not ask me what I want him to do, but tell me this needs to be done. I think a wide boar MRI should be done on my abdomen. A few years ago it was found I have an adinoma on my adrenal gland. The dr treating me, moved and no one picked it up to follow through . I’ve had abdomen pain too.

    • Reviewed on Apr 11, 2026
    • Verified Review

    Compassionate, knowledgeable, kind and a good listener. Thank you

    • Reviewed on Apr 11, 2026
    • Verified Review

    Doesn't explain results. Doesn't write anything down or make of note of it. Very little communication between patient and doctor.

Page 1 of 6
  • Gender

    Male

    Board certifications

    American Board of Internal Medicine

    Licenses

    CA, C167516

    Employed or contracted

    Employed

    Network Name

    OptumCare HealthCarePartners California

    NPI

    1568475614

    Hospital affiliations

    OptumCA Hospitalist - Hospitalist Medicine Physicians of CA, Inc - Sound Physicians of CA

  • Medical School

    • St. George's University, School of Medicine

      1996

    Residency

    • St. Michael's Medical Center

      Internal Medicine

      2002