Summary

Dr. William Kornrich is an internal medicine physician who has dedicated 38 years to caring for patients. He earned his medical degree from Renaissance School of Medicine at Stony Brook University and completed his residency at University Hospital SUNY Stony Brook. Dr. Kornrich speaks both English and Spanish to better serve his diverse patient community.

Dr. Kornrich practices at NYU Langone Medical Associates in Riverhead, New York, and is affiliated with NYU Langone Hospital Long Island. His focus includes preventive care through annual physicals and wellness visits, as well as treating conditions like influenza. He also provides immunizations to help protect his patients' health. Patients have given Dr. Kornrich an average rating of 4.2 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.2
  • 38 years of experience
  • 5 insurance plans accepted
  • speaks English, Spanish
  • University Hospital Suny Stony Brook
  • 6 written reviews
  • 1 specialty
  • 6 areas of expertise
  • 1 hospital affiliation
  • 1 office location
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Location

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William Jon Kornrich, MDDr. Arthur Yunov, MDNatalie Howard, MSN, DNPEric Harker
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.2 
5 
5 
4 
38 Years of Experience 34 Years of Experience 6 Years of Experience 25 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English Speaks English Speaks English
Riverhead , NYBrooklyn , NYNew York City , NYLyons , CO
Med School: Renaissance School Of Medicine At Stony Brook University Med School: ANDIZHAN STATE MEDICAL INSTITUTE Med School: Duke University School Of Medicine
Current Profile
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Insurance Plans Accepted by William Jon Kornrich

  • Accepts Medicare
  • Aetna - HMO
  • Aetna - Medicare
  • Aetna Indemnity
  • Local 1199 - NYU Hospital Member Choice
  • Local 1199 PPO

Medical Specialties

William Jon Kornrich has the following specialty

Specialty Expertise

William Jon Kornrich has the following 6 areas of expertise

  • Check-up
  • Heartburn
  • Immunization
  • Physical
  • Vaccination
  • Weight Loss

Certifications, License, & Education

38 Years Experience

William Jon Kornrich holds an expired medical license in the state of New York.

Medical License

Medical Doctor with an expired medical license in the state of New York that expired in 2026.

Education & Training

Residency

Completed their residency at University Hospital Suny Stony Brook.

Medical School

Graduated from Renaissance School Of Medicine At Stony Brook University in 1988.

NPI Number

William Jon Kornrich's NPI number is 1144332198.

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Frequently Asked Questions

How can I make an appointment with William Kornrich?
You can find contact information for William Kornrich here on Vitals.
Does William Kornrich accept virtual/telehealth appointments?
William Kornrich has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is William Kornrich's office located?
William Kornrich's office is located at 889 E Main St Ste 308, Riverhead, NY, 11901.
Which hospitals is William Kornrich affiliated with?
William Kornrich is affiliated with Nyu Langone Hospital Long Island.
Does William Kornrich accept my insurance?
You can see the insurance plans that William Kornrich accepts on their Vitals profile.

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