Seymour Katz at [NYU Langone Medical Center]

Seymour Katz, MD

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

About Me

Conditions and Treatments

constipation, ulcerative colitis, diarrhea, Crohn's disease, gastroesophageal reflux disease (GERD), inflammatory bowel disease


  • Clinical Professor, Department of Medicine
Board Certifications
  • American Board of Internal Medicine (Gastroenterology), 1972
  • American Board of Internal Medicine - Internal Medicine, 1971
Education and Training
  • Fellowship, Cornell University Medical College, Gasteoenterology, 1971
  • Residency, Albert Einstein College of Medicine, Medicine, 1968
  • MD from New York University, 1964

Locations and Appointments

48 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 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.


  • Smoking and Early Infliximab Response in Crohn's Disease: a Meta-analysis

    Inamdar, Sumant; Volfson, Ariy; Rosen, Lisa; Sunday, Suzanne; Katz, Seymour; Sultan, Keith
    Journal of Crohn's & colitis. 2015 FEB 1. 9 (2): 140-146

  • Chronic appendicitis: uncommon cause of chronic abdominal pain

    Kothadia, Jiten P; Katz, Seymour; Ginzburg, Lev
    Therapeutic advances in gastroenterology. 2015 May. 8 (3): 160-162

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

    Wu, Xian-Rui; Liu, Xiu-Li; Katz, Seymour; Shen, Bo
    Inflammatory bowel diseases. 2015 Mar. 21 (3): 703-715

Read All Publications (110)