James Markowitz is a Pediatric Gastroenterologist in Lake Success, New York. Dr. Markowitz is highly rated in 7 conditions, according to our data. His top areas of expertise are Viral Gastroenteritis, Crohn's Disease, Hemorrhagic Proctocolitis, Colonoscopy, and Endoscopy.

With a rare combination of board certification in pediatric gastroenterology and a PhD in nutrition, Dr. Neal LeLeiko is an authority on the role of nutritional therapy as a component of treatment for children and adolescents with IBD and other digestive disorders. Dr. LeLeiko joined NewYork-Presbyterian Morgan Stanley Children's Hospital as Director of the Pediatric Inflammatory Bowel Disease (IBD) Program and as an Attending Physician. He joined the Columbia University faculty in the Division of Pediatric Gastroenterology, Nutrition and Liver Diseases as a Professor of Pediatrics. Dr. LeLeiko comes from The Warren Alpert Medical School of Brown University, where he was Professor of Pediatrics and Director, Division of Pediatric Gastroenterology, Nutrition and Liver Diseases at Hasbro Children’s Hospital. Before that he served as Chief of Pediatric Gastroenterology at The Mount Sinai School of Medicine in New York City for 23 years. Dr. Leleiko is highly rated in 6 conditions, according to our data. His top areas of expertise are Viral Gastroenteritis, Hemorrhagic Proctocolitis, Ulcerative Colitis, Endoscopy, and Colonoscopy.

Joel Rosh is a Pediatric Gastroenterologist in Lake Success, New York. Dr. Rosh is highly rated in 5 conditions, according to our data. His top areas of expertise are Viral Gastroenteritis, Crohn's Disease, Colitis, Endoscopy, and Colonoscopy.

John F. Thompson, MD, is Chief, Division of Pediatric Gastroenterology, Hepatology and Nutrition at Children's Hospital at Montefiore (CHAM) and Professor of Pediatrics at our Albert Einstein College of Medicine. Dr. Thompson specializes in short bowel syndrome, Crohn's disease, ulcerative colitis, celiac disease, eosinophilic esophagitis, feeding disorder, and chronic abdominal pain. Dr. Thompson graduated from the College of the Holy Cross with a B.A. and M.S. in Chemistry. He was awarded his Doctor of Medicine from Loyola University Stritch School of Medicine in 1977. He completed a residency in Pediatrics at Wyler's Children's Hospital, University of Chicago Hospitals and Clinics in 1980, followed by a fellowship in Pediatric Gastroenterology and Nutrition at Babies Hospital, Columbia University Medical Center. Dr. Thompson was Chief of the Division of Pediatric Gastroenterology and Nutrition in the University of Miami Miller School of Medicine for 15 years before he was recruited to CHAM in 2009. Dr. Thompson is highly rated in 2 conditions, according to our data. His top areas of expertise are Neuroendocrine Tumor, Short Bowel Syndrome, Cerebral Hypoxia, Lymphadenectomy, and Colonoscopy.

Dr. Viswanathan received her Medical training at Kempegowda Institute of Medical Sciences in Bangalore, India. She then completed her Pediatric Residency at Miami Children?s Hospital and her fellowship at The Children?s Hospital at Montefiore. She has presented her research at national meetings and has received the Best Research Award at Pediatric Research Day Children?s Hospital at Montefiore 2011. Dr. Viswanathan is highly rated in 1 condition, according to our data. Her top areas of expertise are Liver Failure, Non-Alcoholic Fatty Liver Disease, Nonalcoholic Steatohepatitis (NASH), and Colonoscopy.

Mirna Chehade is a Pediatric Gastroenterologist in New York, New York. Dr. Chehade is highly rated in 9 conditions, according to our data. Her top areas of expertise are Eosinophilic Esophagitis, Esophagitis, Gastritis, Eosinophilic Enteropathy, and Endoscopy.

Michael Dolinger is a Pediatric Gastroenterologist in New York, New York. Dr. Dolinger is highly rated in 5 conditions, according to our data. His top areas of expertise are Crohn's Disease, Ulcerative Colitis, Hemorrhagic Proctocolitis, Endoscopy, and Colonoscopy.

Gitit Tomer, MD, is Director of the Pediatric Inflammatory Bowel Disease (IBD) Program at Children’s Hospital at Montefiore (CHAM) and Professor of Pediatrics at our Albert Einstein College of Medicine. Dr. Tomer has been a member of the Montefiore team since 2009, with a clinical focus on inflammatory bowel disease, performance improvement and capsule endoscopy. Dr. Tomer is highly rated in 1 condition, according to our data. Her top areas of expertise are Viral Gastroenteritis and Colonoscopy.

Keith Benkov is a Pediatric Gastroenterologist in New York, New York. Dr. Benkov is highly rated in 8 conditions, according to our data. His top areas of expertise are Crohn's Disease, Ulcerative Colitis, Viral Gastroenteritis, and Celiac Disease.

Nanci Pittman is a Pediatric Gastroenterologist in New York, New York. Dr. Pittman is highly rated in 8 conditions, according to our data. Her top areas of expertise are Crohn's Disease, Celiac Disease, Ulcerative Colitis, Delayed Growth, and Endoscopy.

Jaime Chu is a Pediatric Gastroenterologist in New York, New York. Dr. Chu is highly rated in 6 conditions, according to our data. Her top areas of expertise are Biliary Atresia, Alagille Syndrome, Wilson Disease, and Menkes Disease.

Steven Lobritto is a Pediatric Gastroenterologist in New York, New York. Dr. Lobritto is highly rated in 4 conditions, according to our data. His top areas of expertise are Autoimmune Hepatitis, Liver Failure, Hepatitis, Liver Transplant, and Splenectomy.

Robert Baker is a Pediatric Gastroenterologist in Buffalo, New York. Dr. Baker is highly rated in 1 condition, according to our data. His top areas of expertise are Non-Alcoholic Fatty Liver Disease, Obesity, Viral Gastroenteritis, Esophagitis, and Gallbladder Removal.

Daniel Gelfond is a Pediatric Gastroenterologist in Batavia, New York. Dr. Gelfond is highly rated in 1 condition, according to our data. His top areas of expertise are Exocrine Pancreatic Insufficiency, Encopresis, Small Bowel Bacterial Overgrowth, and Celiac Disease.

Kara Gross is a Pediatric Gastroenterologist in Monticello, New York. Dr. Gross is highly rated in 1 condition, according to our data. Her top areas of expertise are Autism Spectrum Disorder, Multisystem Inflammatory Syndrome in Children (MIS-C), Viral Gastroenteritis, and Diarrhea.

Daphna Katz, MD, is an attending physician at Montefiore Einstein. Dr. Katz’s clinical practice centers on pediatric nutrition, including feeding disorders, malnutrition and obesity. She also focuses on nutrition in premature infants and in children receiving total parenteral nutrition. Her top areas of expertise are Cannabinoid Hyperemesis Syndrome (CHS), Eosinophilic Enteropathy, and Diarrhea.

Debra H. Pan, MD, MS, is an Attending Physician in the Division of Gastroenterology, Hepatology, and Nutrition at Children's Hospital at Montefiore (CHAM) and an Associate Professor of Pediatrics at our Albert Einstein College of Medicine. Her clinical focus is on pediatric gastrointestinal and liver conditions such as inflammatory bowel disease, acid reflux, Helicobacter pylori gastritis, tube feeding, endoscopy, cholestasis, viral hepatitis, autoimmune hepatitis, and liver transplant. A graduate from Soochow University School of Medicine in China in 1983, Dr. Pan received her Master of Science in Cardiac Electrophysiology from the same institute in 1989. From 1991 to 2000, she completed a postdoctoral research fellowship in Pharmacology and Toxicology at Michigan State University for 2 years and then continued gastrointestinal research at Columbia University. She completed her Pediatric residency at Long Island College Hospital in 2003, and her Pediatric Gastroenterology and Nutrition fellowship at Mount Sinai Hospital in New York City in 2005. Her top areas of expertise are Jaundice, Helicobacter Pylori Infection, Non-Alcoholic Fatty Liver Disease, and Nonalcoholic Steatohepatitis (NASH).

Rachel Borlack, MD, is an attending physician and Assistant Professor, Pediatric Gastroenterology, Hepatology and Nutrition, at Children’s Hospital at Montefiore and Montefiore Einstein. Her clinical focus is in neurogastroenterology, motility and integrative medicine. In addition to endoscopy and colonoscopy procedures, Dr. Borlack performs and interprets advance motility procedures including anorectal manometry, impedance pH studies and esophageal manometry. She also has training in integrative medicine including hypnotherapy and acupressure. Her top area of expertise is Irritable Bowel Syndrome (IBS).

Lidija Palezac, MD, is an attending physician and Assistant Professor, Pediatrics at Montefiore Einstein. Dr. Palezac’s clinical interests include the management of eosinophilic esophagitis, liver disease, inflammatory bowel disease and celiac disease. Her top area of expertise is Colonoscopy.

Samuel Bitton is a Pediatric Gastroenterologist in Lake Success, New York. Dr. Bitton is highly rated in 2 conditions, according to our data. His top areas of expertise are Childhood Pancreatitis, Acute Pancreatitis, Hereditary Pancreatitis, Celiac Disease, and Endoscopy.

Benjamin Sahn is a Pediatric Gastroenterologist in Lake Success, New York. Dr. Sahn is highly rated in 1 condition, according to our data. His top areas of expertise are Crohn's Disease, Ulcerative Colitis, Colitis, Endoscopy, and Colonoscopy.

Shari Sheflin is a Pediatric Gastroenterologist in Lake Success, New York. Dr. Sheflin is highly rated in 1 condition, according to our data. Her top areas of expertise are Rotor Syndrome, Bile Duct Cysts, Alagille Syndrome, and Wilson Disease.

From an early age I knew that I wanted a profession that involved caring for children. I am very fortunate to have found that as a pediatric gastroenterologist. Children never cease to amaze me in their creativity, energy, and resiliency. I especially love developing long term relationships with these children and their families.Patients come to me for a variety of gastrointestinal and nutritional issues. These include celiac disease, reflux, abdominal pain, inflammatory bowel disease, constipation, and diarrhea. When needed, I also perform endoscopies and colonoscopies to help diagnose and manage these conditions.I am fortunate to be a part of the remarkable team at the Celiac Disease Center at Columbia University. The center provides excellent care to children and adults with celiac disease, an autoimmune disease that results in damage to the small intestine when gluten is ingested. The only treatment for celiac disease is a lifelong gluten free diet. With a team composed of physicians, registered dieticians, pathologists, and researchers, we are dedicated to delivering comprehensive and compassionate care to patients and their families. Celiac disease is a condition near and dear to me, having been diagnosed myself as an adult. I feel very strongly that it’s important while treating celiac disease to ensure that my patients are not only healthy but happy.I also spend time on celiac disease-based research and educational programming. I have a particular interest in the impact of celiac disease on our patients and their families. I am also involved in the training of future pediatric gastroenterologists at Columbia University. Dr. Jossen is highly rated in 1 condition, according to our data. Her top areas of expertise are Celiac Disease, Malabsorption, Colitis, Viral Gastroenteritis, and Liver Transplant.

Cindy Haller is a Pediatric Gastroenterologist in Lake Success, New York. Dr. Haller is highly rated in 1 condition, according to our data. Her top areas of expertise are Atresia of Small Intestine, Eosinophilic Esophagitis, Celiac Disease, and Crohn's Disease.

Katarzyna Bigaj, MD, is an attending physician at the Children’s Hospital at Montefiore Einstein and Assistant Professor at our Albert Einstein College of Medicine. Dr. Bigaj’s clinical focus centers on pre and post pediatric liver transplant care, pediatric hepatology and cholestatic liver disease. Her special interests include nutrition in liver disease and intestinal failure.