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    Dr. William J. Kornrich, MD

    Internal Medicine

    • (631) 963-4770

    Dr. Kornrich's Overview

    Dr. Kornrich graduated from the Stony Brook University School of Medicine in 1988. He works in Riverhead, NY and specializes in Internal Medicine. Dr. Kornrich is affiliated with Winthrop University Hospital.

    Dr. Kornrich's Experience

    Years in Practice: 28

    Dr. Kornrich's Specialties

    Internal Medicine

    Dr. Kornrich's Education & Training

    Medical School: Stony Brook University School of Medicine; Graduated 1988

    Dr. Kornrich's Rating

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    Overall Rating

    Physician

    • Explains conditions & treatments
    • Takes time to answer my questions
    • Provides follow-up as needed
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    Dr. Kornrich's Accepted Insurance

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

    • Aetna Choice POS II
    • Aetna Elect Choice EPO
    • Aetna HMO
    • Aetna Managed Choice POS
    • Aetna Managed Choice POS Open Access
    • Aetna NY Silver 20 Dollar Copay EPO NY Signature PD
    • Aetna Signature Administrators PPO
    • BCBS Blue Card PPO
    • CDPHP New York State of Health - Small Business
    • CDPHP PPO
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    Dr. Kornrich's Office Information & Appointments

    Office Locations

    Winthrop Medical Affiliates

    715 Roanoke Ave Ste 3
    Riverhead, NY 11901
    (631) 963-4770

    Directions

    Office Hours and Information

    Fax: (631) 963-4751

    Practice Website: Not Available

    Accepting New Patients: Yes

    Medicare Accepted: Yes

    Medicaid Accepted: Yes

    Not Available

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