

Gastroenterology
Nicholas Triantafillou, MD
Bayside, NY
Dr. Nicholas Triantafillou, MD, is a board-certified gastroenterologist with over 38 years of experience practicing in Bayside, New York. He specializes in the diagnosis and treatment of diseases of the digestive organs, including the stomach, bowels, liver, and gallbladder. Common conditions he addresses include abdominal pain, ulcers, diarrhea, cancer, jaundice, and duodenitis. As an internist-gastroenterologist, Dr. Triantafillou performs complex diagnostic and therapeutic procedures using en
35+
Years in Practice
Credentials
Board Certifications
- Gastroenterology (American Board of Internal Medicine)
Education & Training
- National and Kapodistrian University of Athens — M.D., 1988
- North Shore University Hospital — Residency, Internal Medicine
- Long Island College Hospital — Fellowship, Gastroenterology
Peer Recognition
- Healthgrades — Choice provider in Gastroenterology
2026
2026
2010-2013 (4 years)
2010-2013 (4 years)
Clinical Focus
Subspecialties
Pancreaticobiliary
Conditions & Treatments
PancreatitisBile Duct DisordersERCP & Biliary Endoscopy
Practice Details
Hospital Affiliations
- NYU Langone Hospitals
- North Shore University Hospital
- NewYork-Presbyterian Hospital
- NYC Health + Hospitals/Queens
Languages
English, Greek, Italian
Experience
35+ years in practice