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Alex J. Gershenhorn, MD

Alex J. Gershenhorn, MD

Specialty

Gastroenterology

Languages

English

Seeing patients at

Monday 7:00 AM - 6:15 PM
Tuesday 7:00 AM - 6:15 PM
Wednesday 7:00 AM - 6:15 PM
Thursday 7:00 AM - 6:15 PM
Friday 7:00 AM - 6:00 PM
Saturday 7:15 AM - 2:00 PM
Sunday Closed
Hours may vary, please contact to schedule and confirm appointment availability.
Monday 7:15 AM - 6:15 PM
Tuesday 7:15 AM - 7:15 PM
Wednesday 7:15 AM - 7:15 PM
Thursday 7:15 AM - 6:15 PM
Friday 7:15 AM - 6:15 PM
Saturday 7:15 AM - 1:00 PM
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

21 reviews

    • Reviewed on May 20, 2026
    • Verified Review

    Listened to my concerns, took a full history, treated me with respect.

    • Reviewed on May 11, 2026
    • Verified Review

    He was thorough and did not rush the visit.

    • Reviewed on Apr 13, 2026
    • Verified Review

    PAY ATTENTION WHAT PT IS SAYING,,,CARING

    • Reviewed on Mar 12, 2026
    • Verified Review

    Dr. Gershenhorn was knowledgeable explained everything I needed to know clearly and understandably, his recommendations I appreciated.

    • Reviewed on Jan 29, 2026
    • Verified Review

    He is a good doctor

    • Reviewed on Jan 21, 2026
    • Verified Review

    Quick and to the point

    • Reviewed on Jan 17, 2026
    • Verified Review

    He is very thorough and answers all your questions

    • Reviewed on Jan 4, 2026
    • Verified Review

    I have been his patient for years and and very happy with him and trust him

    • Reviewed on Jan 2, 2026
    • Verified Review

    Personable and friendly, confident, I like the prep he used for colonoscopy over other providers I have heard about. I had my first colonoscopy with Dr. G 10 years ago and it was a good experience so I’m returning to him.

    • Reviewed on Dec 30, 2025
    • Verified Review

    Knowledgeable about my condition and being able to recommend alternatives for me.

    • Reviewed on Nov 30, 2025
    • Verified Review

    Made me feel very comfortable pleasant. Thorough

    • Reviewed on Nov 26, 2025
    • Verified Review

    He is an excellent doctor.

    • Reviewed on Nov 20, 2025
    • Verified Review

    Great Doctor found two polyps that could’ve turned into something if I didn’t address the problem

    • Reviewed on Nov 16, 2025
    • Verified Review

    great doctor, very easy to talk to, explains everything and gives good advice.

    • Reviewed on Nov 8, 2025
    • Verified Review

    Excellent doctor

    • Reviewed on Nov 4, 2025
    • Verified Review

    He explained everything in a way that I understood

    • Reviewed on Oct 17, 2025
    • Verified Review

    He listens well and does a good job explaining.

    • Reviewed on Oct 15, 2025
    • Verified Review

    Very helpful, seems to genuinely care about helping me.

    • Reviewed on Oct 15, 2025
    • Verified Review

    He is always professional and listens to you.

    • Reviewed on Oct 10, 2025
    • Verified Review

    All I can say he is an excellent doctor in every way

Page 1 of 2
  • About Alex J. Gershenhorn, MD

    Dr. Alex J. Gershenhorn is an internist providing adult primary care. He works with patients to manage chronic conditions and support overall wellness.

    Philosophy of care

    Dr. Gershenhorn emphasizes partnership and clear guidance in care.

    Gender

    Male

    Licenses

    NY, 227291

    Network Name

    Crystal Run Healthcare

    NPI

    1437257797

  • 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.

    • AARP
    • Aetna
    • Anthem/BCBS
    • CDPHP
    • Cigna
    • Emblem
    • FDNY/WTC911
    • HealthFirst
    • Humana
    • MVP
    • Magnacare
    • MedicaidNY/Medicare
    • Molina
    • Multiplan
    • NYSHIP
    • Northwell
    • Oscar
    • Oxford
    • Tricare
    • UHC
    • Univera
    • VA/CHAMPVA
  • Medical School

    • Ohio State University

    Residency

    • Beth Israel Medical Center

  • Awards and Publications