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Michael H. Lief, MD

Michael H. Lief, MD

Optum Provider

Specialty

Internal Medicine

Languages

English

Seeing patients at

Monday 8:00 AM - 5:00 PM
Tuesday 8:00 AM - 5:00 PM
Wednesday 8:00 AM - 5:00 PM
Thursday 8:00 AM - 5:00 PM
Friday 8:00 AM - 4:00 PM
Saturday Closed
Sunday Closed
Please contact the clinic directly to schedule and confirm appointment availability.

Patient Reviews

Patient review summary

Learn about our survey

5

4

3

2

1

4.8

62 reviews

  • Mar 28, 2026
    Verified Review

    He listens and works with me. He is gentle and easy to talk too. I am happy to be under his care .

  • Mar 27, 2026
    Verified Review

    Intelligent, informed, detailed, concern for patient.

  • Mar 26, 2026
    Verified Review

    He takes a solid scientific approach, and explains things well.

  • Mar 25, 2026
    Verified Review

    Provide excellent compassionate care and provides very good explanations

  • Mar 23, 2026
    Verified Review

    Dr Lief is the true meaning of a doctor that will help his patients and never blows off a concern. Hard to find this type of passion now days. Thank you, Dr Lief for never giving up on my EDS body!

  • Mar 23, 2026
    Verified Review

    Dr. Lief is highly regarded & knows his patients with exceptional care!

  • Mar 22, 2026
    Verified Review

    He is very responsive to any medical issues I have.

  • Mar 19, 2026
    Verified Review

    He is very knowledgeable and personable and honest

  • Mar 10, 2026
    Verified Review

    Dr Lief is an excellent physician. He is extremely knowledgeable and compassionate. He 100% listens and understands my concerns.

  • Feb 23, 2026
    Verified Review

    He is spot on and not an alarmist. I think he is a very good doctor.

  • Feb 21, 2026
    Verified Review

    Knowledgeable , great bedside manner, fantastic Dr.

  • Feb 10, 2026
    Verified Review

    He is kind and passionate about his work . He is really amazing at the way he articulates himself and helps out

  • Feb 6, 2026
    Verified Review

    Very experienced and knowledgeable doctor that provides appropriate advice and care.

  • Feb 6, 2026
    Verified Review

    Because he is exceptional in his professionalism, care and consideration. I really feel safe in his hands, as does my wife, [omitted].

  • Feb 1, 2026
    Verified Review

    Caring,compassionate, thorough,answers all my questions, explains results of my bloodwork

  • Jan 25, 2026
    Verified Review

    Dr. Lief knows who I am, gives reasonable advice and listens.

  • Jan 24, 2026
    Verified Review

    Could listen better, feel like I’m rushed, have issues not being addressed, but trust in medical advice

  • Jan 24, 2026
    Verified Review

    Dr. Lief is a wise, super knowledgeable physician. I really feel very lucky I was able to get in as a patient of his. By the way, during the survey - so many questions, my hand may have slipped on one answer - all my answers are very satisfied on all. Thank you.

  • Jan 17, 2026
    Verified Review

    I'd recommend more strongly if he wasn't at Optum. Optum management and system stinks.

  • Dec 29, 2025
    Verified Review

    unresponsive

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  • About Michael H. Lief, MD

    Michael H. Lief, MD, is a board-certified internist and infectious disease physician. He completed medical training at Montefiore Medical Center and has served in academic and clinical leadership roles.

    Philosophy of care

    Dr. Lief partners with patients to provide comprehensive, respectful, and informed care.

    Gender

    Male

    Board certifications

    American Board of Internal Medicine

    Licenses

    NY, 227413

    Employed or contracted

    Employed

    Network Name

    CareMount

    NPI

    1942229745

  • Insurance accepted

    This may not reflect all insurance accepted by the provider and is for informational purposes only.

    • 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

    • Memorial University of Newfoundland Faculty of Medicine

    Residency

    • Montefiore Medical Center (NY)