The Barbara Bush Children's Hospital
Boy and girl looking down at the camera

Gastroenterology & Nutrition

MMP Pediatric Specialty Care - Gastroenterology provides exceptional pediatric gastroenterology care using the most advanced medical tools available. With a focus on prevention, our team specializes in assessing and treating infants, children, adolescents and young adults with gastrointestinal, liver and nutritional disorders. 

We also offer the region’s only multidisciplinary Aerodigestive Clinic for children with complex problems affecting the airway, pulmonary function and the GI tract. Our physicians partner with other specialists to offer the best possible care for your child. That may include providers who are experts in inflammatory bowel disease and pediatric cystic fibrosis.

Maine’s largest and most comprehensive pediatric gastroenterology resource

From state-of-the-art diagnostic technology to leading-edge medical and surgical treatment options, it’s all right here, close to home. In addition to the inpatient and outpatient services offered in Portland, our pediatric gastroenterologists also see patients on an outpatient basis in Oakland, Caribou and at St. Mary's in Lewiston.


Our specialists are experts in the diagnosis and treatment of all common pediatric gastrointestinal conditions, including:

  • Abdominal pain
  • Celiac disease
  • Colic
  • Constipation
  • Diarrhea
  • Diseases of the gallbladder and pancreas
  • Esophagitis
  • Feeding problems/failure to thrive
  • Food allergies and lactose intolerance
  • Gastroesophageal reflux disease (GERD)
  • Gastrointestinal bleeding
  • Gastroparesis
  • Hirschsprung’s disease
  • Inflammatory bowel disease (Crohn’s disease and ulcerative colitis)
  • Irritable bowel syndrome (IBS)
  • Liver disease
  • Motility disorders
  • Obesity
  • Pancreatic insufficiency
  • Polyp disorders
  • Short bowel syndrome
  • Peptic ulcers


  • Upper endoscopy
  • Colonoscopy
  • Capsule endoscopy
  • Lactose Hydrogen Breath Test
  • Genetic testing
  • Liver Biopsy
  • Manometry
  • Rectal Suction Biopsy
  • 24-hour pH Probe Monitoring
  • Gastrointestinal endoscopy
  • Esophageal and anorectal manometry
  • Impedance probe monitoring
  • Minimally invasive endoscopic techniques
  • The most advanced medications available, including biologics shown to dramatically improve the health of children with inflammatory bowel disease
  • Nutritional assessment and counseling for children diagnosed with illnesses that require dietary changes