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Joshua James Feiner, MD

Joshua James Feiner, MD

Optum Provider

Specialty

Endocrinology Diabetes & Metabolism

Languages

English

Seeing patients at

Patient Reviews

Patient review summary

Learn about our survey

5

4

3

2

1

4.7

67 reviews

    • Reviewed on May 31, 2026
    • Verified Review

    Explained everything thoroughly.

    • Reviewed on May 29, 2026
    • Verified Review

    He explained everything to me and answered my questions

    • Reviewed on May 22, 2026
    • Verified Review

    Dr.Feiner is a great Doctor, he cares for you. Dr. Feiner ask me about my health. I provide him the best Doctor.

    • Reviewed on May 18, 2026
    • Verified Review

    Very satisfied with my care

    • Reviewed on May 16, 2026
    • Verified Review

    He is kind and considerate

    • Reviewed on May 14, 2026
    • Verified Review

    He was thorough and pleasant as always😊

    • Reviewed on May 14, 2026
    • Verified Review

    Very helpful and friendly

    • Reviewed on May 3, 2026
    • Verified Review

    Very knowledgeable and understanding

    • Reviewed on Apr 29, 2026
    • Verified Review

    He cared very much about what was going on with my health and really took the time to listen. Very thorough with responding when I messaged him on the portal with an actual phone call to explain everything I questioned. Overall, he’s a wonderful doctor and I’m very happy that I was referred to him.

    • Reviewed on Apr 29, 2026
    • Verified Review

    He explains everything so Thats you understand.

    • Reviewed on Apr 28, 2026
    • Verified Review

    Caring answered all Concerns

    • Reviewed on Apr 28, 2026
    • Verified Review

    Great Doc!

    • Reviewed on Apr 26, 2026
    • Verified Review

    robotic

    • Reviewed on Apr 18, 2026
    • Verified Review

    Excellent endocrinologist who cares about his patients.

    • Reviewed on Apr 18, 2026
    • Verified Review

    Very efficient explains so I understand.

    • Reviewed on Apr 17, 2026
    • Verified Review

    He is attentive and effective

    • Reviewed on Apr 10, 2026
    • Verified Review

    He is very good, explains and takes his time with you. If you message him on my chart he gets back to quickly. I am very happy that I switched to Him. My husband and 2 sisters use him as well. And they’re pleased with the care.

    • Reviewed on Apr 9, 2026
    • Verified Review

    Explains medication and follow up regarding lab results.

    • Reviewed on Apr 6, 2026
    • Verified Review

    great service

    • Reviewed on Apr 5, 2026
    • Verified Review

    He is very thorough and professional

Page 1 of 4
  • About Joshua James Feiner, MD

    Dr. Joshua James Feiner is a board certified endocrinologist. He has published research related to diabetes and previously practiced on Eastern Long Island.

    Philosophy of care

    Dr. Feiner partners with patients to support informed, evidence-based endocrine care.

    Gender

    Male

    Board certifications

    American Board of Internal Medicine

    Licenses

    NY, 231437

    Employed or contracted

    Employed

    Network Name

    ProHealth

    NPI

    1750560421

  • 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
    • CHN
    • Centivo
    • Cigna
    • Coventry
    • EmblemHealth
    • First Health
    • Humana
    • MagnaCare
    • Medicaid
    • Medicare
    • MultiPlan
    • NYSHIP
    • Northwell Direct
    • Oscar
    • Oxford
    • TRICARE
    • UHC
    • UMR
  • Medical School

    • State University of New York (SUNY) - Stony Brook

    Residency

    • State University Of New York Upstate