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Internist, Gastroenterologist (digestive)
34 years of experience
Accepting new patients
Video profile
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. Bernard Yonk is Excellent. Dr. Yonk has been reviewed by 13 patients who have provided 2 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.8
Promptness 3.4
Courteous Staff 3.6
Accurate Diagnosis 3.7
Bedside Manner 4.3
Spends Time with Me 3.7
Follows Up After Visit 3.5

Specialties & Research

Dr. Bernard Yonk, MD is board certified in Internal Medicine and Gastroenterology.

  • He has special expertise in 5 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Yonk graduated from University of Guadalajara, Mexico, San Antonio. He has 2 awards.

Patients' Choice Award (2015)
Compassionate Doctor Recognition (2012, 2014)


Dr. Yonk has 13 hospital affiliations:

  • NewYork-Presbyterian / Weill Cornell 
  • Beth Israel Medical Center Petrie Division 


  • Persian
  • Armenian
  • Urdu
  • Russian
  • Hebrew
  • Korean
  • German
  • French
  • Yiddish
  • Spanish

> > > > Dr. Bernard Yonk, MD

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Additional Information
Dr. Bernard Berel Yonk MD is a male Internist, has 34 years of experience and practices in Internal Medicine and Gastroenterology.
Where does Dr. Bernard B. Yonk practice?
Dr. Bernard Yonk has 1 office location.
Dr. Bernard Yonk practices Internal Medicine and Gastroenterology near Brooklyn, NY.
See Brooklyn Internists and Brooklyn Gastroenterologists.