Skip to content

    Physician Directory

    Find a Doctor

    Martin Greenfield, MD

    Endocrinology, Diabetes & Metabolism

    Dr. Greenfield's Overview

    Dr. Greenfield graduated from the SUNY Downstate Medical Center College of Medicine in 1968. He works in New Hyde Park, NY and specializes in Endocrinology, Diabetes & Metabolism. Dr. Greenfield is affiliated with Northwell Health Long Island Jewish Medical Center.

    Dr. Greenfield's Experience

    Years in Practice: 49

    Procedures Performed by Dr. Greenfield

    Dr. Greenfield's Specialties

    Endocrinology, Diabetes & Metabolism

    Dr. Greenfield's Education & Training

    Medical School: SUNY Downstate Medical Center College of Medicine; Graduated 1968

    Dr. Greenfield's Rating

    Rate This Doctor

    Overall Rating


    • Explains conditions & treatments
    • Takes time to answer my questions
    • Provides follow-up as needed
    • View All Ratings

    Dr. Greenfield's Accepted Insurance

    Please verify insurance information directly with your doctor's office as it may change frequently.

    • Aetna Elect Choice EPO
    • Aetna HMO
    • Aetna Managed Choice POS Open Access
    • Aetna NYC Community Plan
    • Aetna Signature Administrators PPO
    • CDPHP New York State of Health - Small Business
    • CIGNA Open Access Plus
    • View More

    Dr. Greenfield's Office Information & Appointments

    Office Locations

    Island Medical Group
    Lake Success Endocrinology

    2 Ohio Dr Ste 201
    New Hyde Park, NY 11042
    (516) 390-5760


    Office Hours and Information

    Fax: (516) 390-5765

    Practice Website:

    Accepting New Patients: Yes

    Medicare Accepted: Yes

    Medicaid Accepted: No

    Monday 10:00 AM - 6:00 PM
    Tuesday 10:00 AM - 6:00 PM
    Wednesday 10:00 AM - 7:00 PM
    Thursday 10:00 AM - 7:00 PM
    Friday 10:00 AM - 6:00 PM
    Saturday Closed - Closed
    Sunday Closed - Closed

    Other Physicians in Dr. Greenfield's Practice

    Dr. Greenfield's Hospital Affiliations

    Office Locations