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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 (6)

The overall average patient rating of Dr. Seymour Katz is Good. Dr. Katz has been reviewed by 23 patients who have provided 6 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.4
Promptness 3.3
Courteous Staff 3.7
Accurate Diagnosis 3.9
Bedside Manner 3.4
Spends Time with Me 3.4
Follows Up After Visit 3.5

Specialties & Research

Dr. Seymour Katz, MD is board certified in Gastroenterology.

  • He has special expertise in 8 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Colonoscopy
  • Constipation
  • Endoscopy (Endoscopic Surgery)
  • Hepatitis C
  • Inflammatory Bowel Diseases (IBD)
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Katz graduated from New York University. He has 1 awards.

Castle Connolly Top Doctors: New York Metro Area™ (1999 - 2008, 2010 - 2015)


Dr. Katz has 11 hospital affiliations:

  • Nyu Hospital For Joint Diseases 
  • North Shore University Hospital 


  • English
  • Chinese
  • Russian
  • Spanish

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Additional Information
Dr. Seymour Katz MD is a male Internist, has 47 years of experience and practices in Gastroenterology.
Where does Dr. Seymour Katz practice?
Dr. Seymour Katz has 1 office location.
Dr. Seymour Katz practices Gastroenterology near Great Neck, NY.
See Great Neck Gastroenterologists.