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Lothar Mcmillian, MD

Lothar Mcmillian, MD

Please contact to confirm appointment availability

Optum Provider

Please contact to confirm appointment availability

Specialty

Family Medicine

Languages

English, German

Seeing patients at

Patient Reviews

Patient review summary

Learn about our survey

5

4

3

2

1

4.9

100 reviews

    • Reviewed on Jun 25, 2026
    • Verified Review

    He is very patient, knowledgeable and goes that extra mile to help with a problem.

    • Reviewed on Jun 25, 2026
    • Verified Review

    Dr. McMillian is very thorough and explains everything well.

    • Reviewed on Jun 24, 2026
    • Verified Review

    Very attentive & compassionate.

    • Reviewed on Jun 23, 2026
    • Verified Review

    I am very satisfied with the care given by Dr. McMillian.

    • Reviewed on Jun 18, 2026
    • Verified Review

    He is extremely caring & provides information in a very understandable way.

    • Reviewed on Jun 17, 2026
    • Verified Review

    Very thorough, good listener and professional

    • Reviewed on Jun 16, 2026
    • Verified Review

    He is very knowledgeable & did a thorough exam & ordered blood work to complete diagnosis of a condition which.i have been struggling with for over a month. He followed up when labs came in & so far, treatment plan has given me my life back ! Best doctor!!

    • Reviewed on Jun 13, 2026
    • Verified Review

    Knowledgeable and clearly took the time to understand my needs given that this was my first appointment with him.

    • Reviewed on Jun 6, 2026
    • Verified Review

    Dr Mcmillian was exceptional. He took the time to thoroughly explain everything and address all my concerns. His attention to detail and genius concern for my well being made me feel very comfortable and confident in my care. I truly appreciate how attentive he was during my visit. I recommend him to anyone looking for a great physician.

    • Reviewed on Jun 4, 2026
    • Verified Review

    First visit, but he appears to be a kind, knowlegable and thorough doctor.

    • Reviewed on Jun 4, 2026
    • Verified Review

    I answered that question in detail at beginning of this review. Dr Mac is soooo caring. The only problem I have is trying to get to Dr Mac’s front desk. The new system to reach anyone when checking is that I can’t talk to anyone as I try to navigate your system. I am not very computer literate 🤪

    • Reviewed on Jun 4, 2026
    • Verified Review

    Great and compassionate dr

    • Reviewed on Jun 3, 2026
    • Verified Review

    Love Dr. Mcmillian great personality, knowledgeable and took time to answer my questions and more.

    • Reviewed on Jun 2, 2026
    • Verified Review

    very caring

    • Reviewed on Jun 2, 2026
    • Verified Review

    He is opened minded, compassionate and positive. He may not give answers I want to hear, but recommendations and narrowing down possibilities of answers I can always be assured.

    • Reviewed on May 31, 2026
    • Verified Review

    He is very caring n listens n takes care of your problem

    • Reviewed on May 30, 2026
    • Verified Review

    He was thorough. He diagnosed a new condition and ran an EKG to verify that I was in atrial flutter.

    • Reviewed on May 30, 2026
    • Verified Review

    Excellent care

    • Reviewed on May 29, 2026
    • Verified Review

    I believe I mentioned why in the previous question regarding a similar question about why I go to Dr Mac

    • Reviewed on May 28, 2026
    • Verified Review

    He is so very caring, spend time with patient, asking many questions, highly recommended!

Page 1 of 5
  • Gender

    Male

    Board certifications

    American Board of Family Medicine

    Licenses

    CA, A45238

    Employed or contracted

    Employed

    Network Name

    OptumCare HealthCarePartners California

    NPI

    1588748891

    Hospital affiliations

    Mission Hospital Mission Viejo (See Providence Mission Hospital)

  • Medical School

    • Ross University School of Medicine

      1981

    Residency

    • Delaware County Mem Hospital

      Family Medicine

      1984