Summary

Dr. Nicholas Triantafillou is a gastroenterologist and internist who earned his medical degree from the University of Athens School of Health Sciences and completed his residency at Long Island College Hospital. With 38 years of experience in medicine, he brings extensive expertise to digestive health care and internal medicine practice. Dr. Triantafillou speaks Spanish and Italian in addition to English.

He practices at multiple locations across New York, including Bayside, Fresh Meadows, Manhasset, and Staten Island, with affiliations at New York City Health and Hospitals Queens and other facilities. Dr. Triantafillou specializes in treating conditions such as hemorrhoids, colon polyps, and gastritis. His procedural expertise includes performing colonoscopies, upper GI endoscopy, and lower GI endoscopy to diagnose and treat digestive disorders. Patients have given him an average rating of 3.7 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.7
  • 38 years of experience
  • speaks Spanish, Italian
  • Long Island College Hospital
  • 9 written reviews
  • 2 specialties
  • 11 areas of expertise
  • 4 hospital affiliations
  • 7 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Nicholas G Triantafillou has 7 locations

Triantafillou Nicholas G Office

21305 39th AveBayside, NY 11361
Mon11:00 am - 8:00 pm
Tue11:00 am - 4:00 pm
Wed11:00 am - 2:00 pm
Thu10:00 am - 4:00 pm
Fri11:00 am - 3:00 pm
SatClosed
SunClosed

Queens Endoscopy ASC

17660 Union Tpke Ste 101Fresh Meadows, NY 11366

Northwell Health

475 Seaview AveStaten Island, NY 10305

Queens Endoscopy Asc Llc

17660 UNION TPKE FRNT 1FRESH MEADOWS, NY 11366
Mon6:00 am - 5:00 pm
Tue6:00 am - 5:00 pm
Wed6:00 am - 5:00 pm
Thu6:00 am - 5:00 pm
Fri6:00 am - 5:00 pm
SatClosed
SunClosed

Northwell Health Hospital

300 Community DrManhasset, NY 11030

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Dr. Nicholas G Triantafillou, MDDr. Mikhail Yakubov, MDDr. Michael Schopis, MDDr. Michael Seth Rosman, MD
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.7 
38 Years of Experience 9 Years of Experience 10 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks Spanish, Italian Speaks English, Russian, Hebrew Speaks English
Bayside , NYNEW YORK , NYNEW YORK , NYNEW YORK , NY
Med School: University Of Athens School Of Health Sciences Med School: American University Of The Caribbean School Of Medicine Med School: University Of Toledo College Of Medicine Med School: New York University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Nicholas G Triantafillou

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Nicholas G Triantafillou has the following 2 specialties

Specialty Expertise

Dr. Nicholas G Triantafillou has the following 11 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

38 Years Experience

Dr. Nicholas G Triantafillou holds an active medical license in the state of New York.

Medical License

Medical Doctor with an active medical license in the state of New York that expires in 2026.

Education & Training

Residency

Completed their residency at Long Island College Hospital.

Medical School

Graduated from University Of Athens School Of Health Sciences in 1988.

NPI Number

Dr. Triantafillou's NPI number is 1144212853.

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Frequently Asked Questions

How can I make an appointment with Dr. Nicholas Triantafillou?
You can find contact information for Dr. Nicholas Triantafillou here on Vitals.
Where is Dr. Nicholas Triantafillou's office located?
Dr. Nicholas Triantafillou's office is located at 21305 39th Ave, Bayside, NY, 11361.
Does Dr. Nicholas Triantafillou accept virtual/telehealth appointments?
Dr. Nicholas Triantafillou has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Dr. Nicholas Triantafillou accept my insurance?
You can see the insurance plans that Dr. Nicholas Triantafillou accepts on their Vitals profile.
What languages does Dr. Nicholas Triantafillou speak?
Dr. Nicholas Triantafillou speaks Spanish and Italian.

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