Summary

Dr. William Kornrich has practiced internal medicine for 38 years and is affiliated with NYU Langone Hospital Long Island. He treats influenza and sees patients for annual physicals and wellness visits. He speaks English and Spanish. Dr. Kornrich completed his residency at University Hospital SUNY Stony Brook and sees patients in Riverhead, New York.

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

Compare with Similar Doctors

William Jon Kornrich, MD
Dr. Mukund Madhaw Das, MD
Eric Harker
Dr. Monica P. Luthra, DO
William Jon Kornrich, MDDr. Mukund Madhaw Das, MDEric HarkerDr. Monica P. Luthra, DO
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.2 
0 
4 
0 
38 Years of Experience 10 Years of Experience 25 Years of Experience 13 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English, Hindi, Urdu Speaks English Speaks English
Riverhead , NYBergenfield , NJLyons , COBuffalo , NY
Med School: Renaissance School Of Medicine At Stony Brook University Med School: St Georges University School Of Medicine Med School: Duke University School Of Medicine
Current Profile
View Profile View Profile View Profile

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.

Similar doctors

Frequently Asked Questions

Where is William Kornrich's office located?
William Kornrich's office is located at 889 E Main St Ste 308, Riverhead, NY, 11901.
What languages does William Kornrich speak?
William Kornrich speaks English and Spanish.
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.
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.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.