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Welcome to Vanguard Gastroenterology Clinic Located in New York, NY
Vanguard Gastroenterology offer services that includes gastro consultations, clinical trials, colonoscopy procedure, upper endoscopy, screening colonoscopy, sigmoidoscopy exam, capsule endoscopy, ERCP, endoscopic ultrasound, integrative weight management, fecal microbiota transplantation and much more! Visit us at a location near you. For more information, please call us or book an appointment online. We serve patients from New York NY, Queens NY, Brooklyn NY, The Bronx NY, East Elmhurst NY, Ridgewood NY, Valley Stream NY, and Staten Island NY.
Treated Conditions
Our Physicians
Our doctors and staff are devoted to our patients and to the commitment of providing quality patient care on all levels
Vanguard GI: Recognizing Excellence
New York Times Super Doctors 2020
Edward Brettholz MD (“Hall of Fame” – 10 consecutive years)
Jonathan Cohen MD
Heather Klavan MD (“Rising Star”)
Caterina Oneto MD
Scott Weber MD
New York Magazine Best Doctors 2020
NYU Langone Health Covid-19 Volunteer
Jonathan Cohen MD
Inessa Khaykis MD
Alex Sherman MD
Scott Weber MD
NYU Grossman School of Medicine – Promotion to Clinical Professor of Medicine
“Vanguard to Your Door” – Complimentary Covid 19 testing of NYC Firefighters
Patient Reviews & Feedback
Dr Cohen has been my GI dr for some years now. He is an excellent clinician, knowledgeable, timely, thorough and concerned. I highly recommend him to anyone with GI issues.
Deborah W
My wife and I had colonoscopy screenings with Dr. Friedlander. He is a warm human being and excellent physician. He and his staff made the experience very comfortable. Many thanks!
Dino D.
Dr Brettholz is a Great doctor. He definitely knows what he’s talking about. Very experienced and makes you feel very comfortable. Highly recommended!
Ioannis S.