Skip to main content
Informational

Data use

We use cookies and similar tools to make your use of this website easy and to keep it working properly. We may share data about you and how you use the site with third parties, such as analytics and marketing partners. Learn more in our Privacy Policy and Terms of Use. By continuing to use the site, you agree to this.

Mark Joseph Fredrick, MD

Mark Joseph Fredrick, MD

Optum Provider

Specialty

Internal Medicine

Languages

English

Seeing patients at

Patient Reviews

Patient review summary

Learn about our survey

5

4

3

2

1

4.7

62 reviews

    • Reviewed on Aug 21, 2026
    • Verified Review

    Attentive, unrushed, on time.

    • Reviewed on Aug 19, 2026
    • Verified Review

    Just very quick with my diagnosis which was actually not what was wrong with me.

    • Reviewed on Aug 19, 2026
    • Verified Review

    He’s such a great doctor

    • Reviewed on Aug 18, 2026
    • Verified Review

    He has always been transparent with me. I can't fault him in on your system

    • Reviewed on Aug 14, 2026
    • Verified Review

    I feel comfortable and confident in his abilities to care for my medical needs.

    • Reviewed on Aug 10, 2026
    • Verified Review

    He's the best. Efficient, detailed, honest, relatable, kind, caring, knowledgeable. Just an all-around good person, and doctor.

    • Reviewed on Aug 7, 2026
    • Verified Review

    Dr Fredrick takes the time to listen to the patient. Dr Fredrick shows concern for {and if} there is a problem. Dr Fredrick then tells you his concerns, and resolutions or choices you may have to resolve the problem.

    • Reviewed on Aug 4, 2026
    • Verified Review

    very competent and friendly. Quickly diagnosed issues ans shared his own experiences with similar issues.

    • Reviewed on Jul 19, 2026
    • Verified Review

    Dr. Fredrick is a very caring, thorough and knowledgeable physician.

    • Reviewed on Jul 16, 2026
    • Verified Review

    Very personable and effiecient and trustworthy

    • Reviewed on Jul 10, 2026
    • Verified Review

    Dr. Mark Fredrick was very thorough and answered very nicely to my concerns which I had about my health, particularly gain in weight. He explained to me in detail what is going on with my health, recommended that I needed to exercize and prescribed the appropriate medicine which would help me with my weight gain reduction goal.

    • Reviewed on Jun 24, 2026
    • Verified Review

    Professional, compassionate

    • Reviewed on Jun 17, 2026
    • Verified Review

    If someone is looking I'm highly satisfied

    • Reviewed on Jun 16, 2026
    • Verified Review

    Because he listens to me and does his best to help me with any problems I'm having!

    • Reviewed on Jun 10, 2026
    • Verified Review

    Sorry, I can’t really remember much except I wanted a prescription to go to some particular PT person and I was told I don’t have that choice on my plan he was fine even though he couldn’t accommodate everything I was looking for

    • Reviewed on Jun 4, 2026
    • Verified Review

    Doctor Fredrick he’s such a great doctor I feel real comfortable with him as my doctor I would recommend anyone to him very professional and easy going the best doctor I have ever had

    • Reviewed on May 30, 2026
    • Verified Review

    Dr. Fredrick is very knowledgeable and fiendly, polite and courteous, making you feel at ease while discussing your health condition.

    • Reviewed on May 25, 2026
    • Verified Review

    He is the best doctor.

    • Reviewed on May 21, 2026
    • Verified Review

    Because he has taken good care of me for the past 18 years and I feel comfortable with him. When he goes, I go.

    • Reviewed on May 19, 2026
    • Verified Review

    Dr. Fredrick is always pleasant and courteous during our visit which puts me at ease. He’s easy to talk to in regard to my health concerns.

Page 1 of 4
  • About Mark Joseph Fredrick, MD

    Mark Fredrick, MD, is board certified in internal medicine. Dr. Fredrick earned his medical degree from Indiana University School of Medicine. He completed his internship and residency at Los Angeles County-USC Medical Center. In his spare time, Dr. Fredrick enjoys bicycling, photography and traveling. In addition to English, he speaks medical Span ish.

    Gender

    Male

    Board certifications

    American Board of Internal Medicine

    Licenses

    CA, G67380

    Network Name

    OptumCare HealthCarePartners California

    Hospital affiliations

    Orange Coast Medical Center (SEE MemorialCare Organe Coast Medical Center)

  • Education

    Medical School

    • LAC & USC Medical Center

      1989

    Internship

    • Los Angeles General Medical Center

      1988