Gastroenterology Care
With Offices in Manhattan

GI Consult Colonoscopy Upper Endoscopy Screening Colonoscopy Sigmoidoscopy Capsule Endoscopy ERCP EUS Integrative Weight Management Program In-Office Infusion Fibroscan Fecal Microbiota Transplantation (FMT)

Patients Can Make Payments Through the Portal Now.

In-Office Infusion is available. Click for more info.

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.

Gastroenterologist Near Me in New York, NY

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.

Patients Can Make Payments Through the Portal Now.

In-Office Infusion is available. Click for more info.

GI Consult - Vanguard Gastroenterology New York City, NY — GI CONSULT

Procedures Preparation Instructions - Vanguard Gastroenterology New York City, NY — GI PROCEDURES

Procedures - Vanguard Gastroenterology New York City, NY — PROCEDURE
PREPARATION
INSTRUCTIONS

In-Office Infusion Near Me in New York, NY — IN-OFFICE INFUSION

Integrative Weight Management Program - Vanguard Gastroenterology New York City, NY — INTEGRATIVE WEIGHT MANAGEMENT PROGRAM

TREATED CONDITIONS

Barrett’s Esophagus
Celiac Sprue
Colon Cancer / Polyps
Constipation
Crohn’s Disease
Diverticular Disease
Eosinophilic Esophagitis

Gastritis
GERD / Acid Reflux
H. Pylori
Hemorrhoids
Hepatitis
Hiatal Hernia
Irritable Bowel Syndrome

Inflammatory Bowel Disease
Lactose Intolerance
NAFLD
Pancreatitis
Peptic Ulcers
Ulcerative Colitis
Diverticulitis Treatment

Our Physicians

Our doctors and staff are devoted to our patients and to the commitment of providing quality patient care on all levels

MEET OUR PHYSICIANS

Our Physicians

Our doctors and staff are devoted to our patients and to the commitment of providing quality patient care on all levels

MEET OUR PHYSICIANS

Vanguard GI: Recognizing Excellence

New York Times Super Doctors 2022

Edward Brettholz MD – Hall of Fame
Dr. Jonathan Cohen
Dr. Caterina Oneto
Dr. Scott Weber
Dr. Alexander Perelman – First time selected Rising Stars

New York Magazine Best Doctors 2020

Inessa Khaykis MD
James Salik MD
Alex Sherman MD

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

Alex Sherman MD

“Vanguard to Your Door” – Complimentary Covid 19 testing of NYC Firefighters

Jonathan Cohen MD
Inessa Khaykis MD

Castle Connolly Top Doctors

Inessa Khaykis, M.D.
Alex Sherman, M.D.
Jonathan Cohen, M.D.
Edward M. Brettholz, M.D.
Caterina Oneto, M.D.
James M. Salik, M.D.

Inessa Khaykis, M.D.
Exceptional Women in Medicine, New York Magazine Top Doctors, Top Doctors New York Metro Area.

James M. Salik, M.D.
New York Magazine Top Doctors, Top Doctors New York Metro Area.

Edward M. Brettholz, M.D.
New York Magazine Top Doctors, Top Doctors New York Metro Area.

Caterina Oneto, M.D.
New York Magazine Top Doctors, Top Doctors New York Metro Area.

Alex Sherman, M.D.
New York Magazine Top Doctors, Top Doctors New York Metro Area.

Jonathan Cohen, M.D.
New York Magazine Top Doctors, Top Doctors New York Metro Area, America’s Top Doctors.

Vanguard Gastroenterology New York City, NY

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.