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Mark E. Lieb, MD

Mark E. Lieb, MD

Optum Provider

Specialty

Cardiovascular Disease

Languages

English

Seeing patients at

Monday 8:30 AM - 5:00 PM
Tuesday 8:30 AM - 5:00 PM
Wednesday 8:30 AM - 5:00 PM
Thursday 8:30 AM - 5:00 PM
Friday 8:30 AM - 5:00 PM
Saturday Closed
Sunday Closed
Hours may vary, please contact to schedule and confirm appointment availability.

Patient Reviews

Patient review summary

Learn about our survey

5

4

3

2

1

5.0

107 reviews

  • Apr 30, 2026
    Verified Review

    He explains things very well, and I always feel like he gives me his full attention and care.

  • Apr 26, 2026
    Verified Review

    Competent and interested in what the patient has to say. Does not pander.

  • Apr 18, 2026
    Verified Review

    I think he is very easy to work with, very calm, very personable, informative and helpful

  • Apr 11, 2026
    Verified Review

    Doctor Lieb is very thorough in his exam and any explaining of my condition. He is caring and has compassion for his patient while maintaining professionalism. By far he is the best doctor that I have chosen to use at Optum. There should be more like him on staff.

  • Apr 9, 2026
    Verified Review

    Because he listens and gives, what I believe, is straight forward and honest advice. Offers options and doesn't push meds or procedures you don't want. Overall, he has great patient skills.

  • Apr 7, 2026
    Verified Review

    Very easy going and good listening

  • Apr 3, 2026
    Verified Review

    He's the best! Kind, caring and an amazing doctor!

  • Mar 29, 2026
    Verified Review

    Dr Lieb is very capable of explaining my health assessments and advising how to stay healthy via exercide, diet, medicine, and periodic checkups.

  • Mar 29, 2026
    Verified Review

    Dr. is a great doctor. He listens carefully and gives feedback.

  • Mar 28, 2026
    Verified Review

    He is detailed, caring kind helpful. He takes good care of my heart health including blood pressure and general well being. I am[omitted] years old and in other departments-sickly

  • Mar 27, 2026
    Verified Review

    Great at communicating information.

  • Mar 26, 2026
    Verified Review

    Attentive and had reviewed my files and tests prior to appointment. So adjustments that need to be done were discussed and implemented

  • Mar 26, 2026
    Verified Review

    Excellent doctor. Personable, highly professional. Very good care.

  • Mar 23, 2026
    Verified Review

    Caring , thoughtful and thorough

  • Mar 21, 2026
    Verified Review

    Caring and thorough. Great personality

  • Mar 19, 2026
    Verified Review

    He is the best

  • Mar 19, 2026
    Verified Review

    He is a caring wonderful doctor

  • Mar 16, 2026
    Verified Review

    Professionalism, medical knowledge, and thoroughness

  • Mar 14, 2026
    Verified Review

    Friendly, knowledgable, accommodating.

  • Mar 14, 2026
    Verified Review

    Already got my sister to see him.

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  • About Mark E. Lieb, MD

    Award-winning cardiologist Mark E. Lieb, MD, provides exceptional care for patients with hypertension, elevated cholesterol, and cardiac rhythm disorders. His patient-centered approach emphasizes education and cardiovascular disease prevention. He earned his medical degree from Boston University and completed advanced cardiology training at Mount Sinai. Dr. Lieb has been recognized by Best Doctors in America, Castle Connolly, and regional publications.

    Philosophy of care

    He emphasizes prevention, education, and personalized cardiovascular care.

    Gender

    Male

    Board certifications

    American Board of Internal Medicine

    Licenses

    NY, 180753

    Employed or contracted

    Employed

    Network Name

    CareMount

    NPI

    1619921749

  • Insurance Accepted

    This list is for informational purposes only and may not reflect the most current plans accepted by the provider. Optum accepts most major health insurance plans. Please contact your insurance company to confirm your coverage, eligibility, and the provider's participation in your plan.

    • 1199
    • Aetna
    • Affinity
    • Anthem BCBS
    • CDPHP
    • CHN
    • Centivo
    • Cigna
    • Coventry
    • EmblemHealth
    • First Health
    • Healthfirst
    • Humana
    • MVP Healthcare
    • MagnaCare
    • Medicaid
    • Medicare
    • MetroPlus
    • MultiPlan
    • NYSHIP
    • Northwell Direct
    • Oscar
    • Oxford
    • TRICARE
    • UMR
  • Medical School

    • Boston University School of Medicine

    Residency

    • Mount Sinai Hospital