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Dr. William J. Kornrich, MD

Internal Medicine

  • (631) 963-4770

Dr. Kornrich's Overview

Dr. William J. 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: 27

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


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

  • Aetna Choice POS II
  • Aetna HMO
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • BCBS Blue Card PPO
  • CIGNA Open Access Plus
  • EmblemHealth PPO GHI
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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


Office Hours and Information

Fax: (631) 963-4751

Practice Website: Not Available

Accepting New Patients: No

Medicare Accepted: No

Medicaid Accepted: No

Not Available

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Dr. Kornrich's Hospital Affiliations

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