Seymour Katz at [NYU Langone Medical Center]

Seymour Katz, MD

  • Specialty: Gastroenterology
  • Language: English
  • Phone: 516-466-2340

About Me

Conditions and Treatments

Crohn's disease, diarrhea, ulcerative colitis, constipation, inflammatory bowel disease, gastroesophageal reflux disease (GERD)
Learn more about conditions we treat at NYU Langone:
Gastroesophageal Reflux Disease



  • Clinical Professor, Department of Medicine

Board Certifications

  • AB Internal Medicine (Gastroenterology)
  • AB Internal Medicine - Internal Medicine

Education and Training

  • 1974
  • Fellowship, Cornell University Medical College, Gasteoenterology
  • 1964
  • MD from New York University


Locations and Appointments

49 Insurance Plans Accepted
  • Aetna HMO
  • Aetna Indemnity
  • Aetna Medicare
  • Aetna POS
  • Aetna PPO/EPO
  • Cigna EPO/POS
  • Cigna PPO
  • Coventry First Health
  • ElderPlan
  • Empire Blue Cross Blue Shield EPO
  • Empire Blue Cross Blue Shield HMO
  • Empire Blue Cross Blue Shield Healthy NY
  • Empire Blue Cross Blue Shield Indemnity
  • Empire Blue Cross Blue Shield MediBlue
  • Empire Blue Cross Blue Shield POS
  • Empire Blue Cross Blue Shield PPO
  • Empire Blue Cross Blue Shield Pathways, Enhanced
  • HIP Access I
  • HIP Access II
  • HIP Child Health
  • HIP Medicare
  • HealthRepublic
  • HealthSmart (WTC)
  • Humana Medicare
  • Local 1199 PPO
  • MagnaCare PPO
  • Medicare
  • MultiPlan/PHCS PPO
  • NY Medicaid
  • NYS Empire Plan
  • Oscar
  • Oxford Exchange
  • Oxford Freedom
  • Oxford Liberty
  • Oxford Medicare
  • Tricare
  • United Exchange- Compass
  • UnitedHealthcare Community & State Plan
  • UnitedHealthcare EPO
  • UnitedHealthcare HMO
  • UnitedHealthcare Medicare
  • UnitedHealthcare POS
  • UnitedHealthcare PPO
  • UnitedHealthcare Top Tier
  • Visiting Nurse Service (VNS) Medicare
*Insurance listed above may not be accepted at all office locations. Please confirm prior to each visit. The information presented here may not be complete or may have been changed.

NYU Langone Nassau Gastroenterology Associates
1000 Northern Boulevard, Suite 140
Great Neck, NY 11021


Phone: 516-466-2340

Schedule Online

Welcome back!

As a returning patient for this doctor, please schedule an appointment using your MyChart at NYU Langone account.

Learn more about MyChart at NYU Langone.


  • Pathogenesis, diagnosis, and management of ulcerative proctitis, chronic radiation proctopathy, and diversion proctitis

    Wu, Xian-Rui; Liu, Xiu-Li; Katz, Seymour; Shen, Bo 2015 Mar; 703-715, Inflammatory bowel diseases — id: 1466722, year: 2015, page: 703, stat: Journal Article
  • A randomized study of lubiprostone for opioid-induced constipation in patients with chronic noncancer pain

    Cryer, Byron; Katz, Seymour; Vallejo, Ricardo; Popescu, Anca; Ueno, Ryuji 2014 Nov; 1825-1834, Pain medicine — id: 1446172, year: 2014, page: 1825, stat: Journal Article; Research Support, Non-U.S. Gov't
  • Clinical implications of ageing for the management of IBD

    Ha, Christina Y; Katz, Seymour 2014 Feb; 128-138, Nature reviews. Gastroenterology & hepatology — id: 799962, year: 2014, page: 128, stat: Journal Article
Read All Publications (108)