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A young boy getting his abdomen examined by a doctor.
Gastroenterology

Services

A complete range of diagnostic and treatment options are available through the pediatric gastroenterology division — more comprehensive in scope than any other hospital in Suffolk County.

Our services include:

  • Upper endoscopy
  • Capsule endoscopy
  • Colonoscopy
  • Removal of intestinal polyps
  • Placement of gastrostomy tubes (PEG)
  • Control of intestinal bleeding
  • Evaluation for gastroesophageal reflux (GERD)
  • Impedance studies
  • BRAVO 24 hr pH monitoring
  • Evaluation for Crohn's Disease and Colitis
  • Intestinal motility studies
  • Lactose breath test
  • Liver biopsy

In addition, our Celiac and Gluten Sensitivity Center provides comprehensive evaluation, treatment and management of celiac disease and related disorders including gluten sensitivity/intolerance.

We take a multidisciplinary approach, which means connecting children and families with the appropriate Stony Brook Children’s experts, including registered dieticians.
 

Our Team

Our team of board-certified pediatric gastroenterologists is complemented by highly trained nurse practitioners, two registered dietitians, and Inflammatory Bowel Disease (IBD) and celiac educators. We work closely with our state-of-the-art endoscopy unit staff as well as motility laboratory staff. 
Pediatric anesthesiologists provide anesthesia for all endoscopy patients, which is a minimally invasive procedure that is used to diagnose a number of gastrointestinal issues including celiac disease. 
Together, we provide multidisciplinary care drawing upon all the resources and specialists of our academic medical center as needed, including pediatric surgery, pediatric radiology, pediatric anesthesia, pediatric intensive care and more.

Anupama Chawla, MD
Pediatric Gastroenterology, Medical Co-Director & Diplomat of National Board of Physician Nutrition Specialist
Keith Breglio, MD
Pediatric Gastroenterology
Grace N K Gathungu, MD
Pediatric Gastroenterology
Ada K Lee, DO
Medical Co-Director & American Board of Obesity Medicine Diplomat
Jeffrey Morganstern, MD
Pediatric Gastroenterology
Lesley Small-Harary, MD
Pediatrics, Pediatric Gastroenterology
Michelle Tobin, MD
Pediatric Gastroenterology

Locations

Center Moriches Advanced Pediatric Care

600 Main Street, Suite A
Center Moriches, NY 11934

(631) 444-KIDS (5437)


Commack Advanced Pediatric Care

500 Commack Road, Suite 104
Commack, NY 11725

(631) 444-KIDS (5437)


East Islip Advanced Pediatric Care

269 East Main Street
East Islip, NY 11730

(631) 444-KIDS (5437)


Lake Grove Advanced Pediatric Care

4 Smith Haven Mall, Suite 101
Lake Grove, NY 11755

(631) 444-KIDS (5437)


Smithtown Advanced Pediatric Care

260 Middle Country Road, Suite 107
Smithtown, NY 11787

(631) 444-KIDS (5437)


Patient Resources

In addition to the education and support provided by the pediatric nurse practitioners on staff, our patients and their families participate in support groups, including the following:

  • Reach Out for Youth (ROFY) with Ileitis and Colitis: Provides education and support for children with Crohn's disease and ulcerative colitis. Call (631) 293-3102 for more information, email info@reachoutforyouth.org or search for ROFY on Facebook.
  • Suffolk County Celiacs Support and Awareness Group: Provides education and support to persons suffering from gluten intolerances, including celiac disease, dermatitis herpetiformis and gluten sensitivities. Meetings are held the first Tuesday of each month at 7:30p.m. at the West Islip Community Center, 90 Higbie Lane, West Islip, NY 11795. Email SuffolkCountyCeliacs@gmail.com for more information.
  • Cystic Fibrosis Support Group (in collaboration with the Division of Pulmonology): For parents or caregivers of children with cystic fibrosis. Meetings are held on the third Monday of each month at 7p.m. at Middle Country Public Library, Centereach Branch, 101 Eastwood Blvd. Call (631) 580-6075 or (631) 839-8926.

Research and Education

Research and education are vital components of our work. Our pediatric gastroenterology fellowship program is American College Graduate Medical Education (ACGME) accredited.

The division is actively involved in clinical and basic science research, routinely presents papers as well as invited lectures at national conferences, and has a long list of publications in professional journals. 

Topics of current research interest include:

  • Celiac disease
  • Gastroesophageal reflux — pH monitoring
  • Inflammatory bowel disease — We are a part of the ImproveCareNow collaborative community
  • Eosinophilic Esophagitis
  • Nutrition-related research in children with cystic fibrosis

Advances and Recognitions

Click on our experts to review their individual recognitions in the field of pediatric gastroenterology:

  • Castle Connolly Top Doctor (New York Magazine Top Doctor, Newsday Top Doctors on Long Island) since 2008 to present
  • President, National Board of Nutrition Physician Specialists (2022 to 2025)
  • Chair, Nutrition Committee at Stony Brook University Hospital
  • NASPGHAN Nutrition Committee
  • Medical Co-Director, Healthy Weight and Wellness Center at Stony Brook University Hospital
  • Co-Director, Celiac Disease and Gluten Sensitivity at Stony Brook University Hospital
  • Vice President, National Board of Nutrition Physician Specialists for exam content (2018-2024)
  • Stony Brook University Hospital Fellowship Education Committee
  • Stony Brook University Hospital Pediatric RSOC Committee
  • NASPGHAN Celiac Disease special interest group
  • NASPGHAN Fecal Microbiota Transplant special interest group
  • Castle Connolly Top Doctor 2023 (New York Magazine Top Doctor, Newsday Top Doctors on Long Island)
  • NASPGHAN Endoscopy and Procedures Committee
  • Director, Pediatric Endoscopy Stony Brook University Hospital
  • Stony Brook University Hospital Endoscopy Committee
  • Pediatric Gastroenterology Rotation Director for Pediatric Residents
  • Pediatric Gastroenterology Curriculum for Pediatric Residency
  • Recipient, Intramural award from Pediatrics for research project: 'Infection and drug studies using enteroids'
  • NASPGHAN International Committee
  • Stony Brook University Hospital Pediatric RSOC Committee

NASPGHAN Technology Committee

Medical Co-Director, Healthy Weight and Wellness Center at Stony Brook University Hospital

Medical Advisor, Bariatric and Metabolic Weight Loss Center at Stony Brook University Hospital

  • Physician Lead, ImproveCareNow (national database registry and research tool for IBD)
  • Deputy Chief Medical Information Officer and IT Liaison for the Department of Pediatrics
  • Stony Brook University Hospital Wellbeing Committee
  • Program Director, Pediatric Gastroenterology Fellowship
  • NASPGHAN Ethics Committee
  • NASPGHAN Celiac Disease special interest group
  • Stony Brook University Hospital Ethics Committee and Ethics Consult service
  • Stony Brook University Hospital Fellowship Education Committee
  • Co-Director, Celiac Disease and Gluten Sensitivity Center at Stony Brook University Hospital
  • Recipient, DIGEST (Developing Innovative GastroEnterology Specialty Training) program award (2019)
  • NASPGHAN Eosinophilic Gastrointestinal Disease special interest group
  • Medical Student Course Director and Member of Phase I Committee at Renaissance School of Medicine at Stony Brook University
  • Gastroenterology Consultant, Duchenne Muscular Dystrophy Center at Stony Brook University Hospital
  • Gastroenterology Consultant, Cystic Fibrosis Center at Stony Brook University Hospital

Definitions

This measures acidity in the digestive tract and replaces a previously used less sensitive, less comfortable technology.

This diagnostic test involves a tiny capsule the size of a pill that is swallowed and takes pictures of the entire small intestine over an 8-hour period.

Permits a visual examination of the colon.

Done endoscopically using state-of-the-art modalities like heater probes, clips and argon coagulation.

Clinical test using 24 to 48 hour reflux monitoring.

Tests to determine if contents from the stomach are coming up into the esophagus.

Measures how well the esophagus is doing its job.

Test to help determine whether the patient is lactose intolerant.

Feeding tube placed in the stomach, also known as a g-tube.

Performed endoscopically.

Procedure using a lighted, flexible endoscope to see inside the upper GI tract.

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