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Gastroenterology & Digestive Disorders

Exeter Hospital’s gastroenterogy department offers a full range of highly therapeutic procedures. The fully accredited endoscopy department is staffed by four affiliated board certified gastroenterologists, and three affiliated board certified surgeons, as well as specially trained registered nurses and an experienced support staff.

The goal of the department is to achieve a level of wellness equal to or greater than that which existed prior to the procedure. The department maximizes positive patient outcomes by preparing the patient and their family members physically, psychologically, socially, culturally, and spiritually for their experience.

Gastroenterology

  • colonoscopy
  • endoscopy
  • ERCP
  • PEG (percutaneous endoscopic gastrostomy tube placement)

Comprehensive Reflux Center

  • Motility studies
  • PH Studies
  • Barretts Surveillance and Ablation

Meet our affiliated physicians

Dr. Alain Ades- Board Certified Internal Medicine; Gastroenterology
Dr. Francis Colizzo- Board Certified Internal Medicine; Gastroenterology
Dr. John Dowd - Board Certified Gastroenterology
Dr. Marylyn Grondin - Board Certified Internal Medicine; Gastroenterology

Meet our affiliated surgeons

Dr. Jay Swett –Board certified- General Surgery
Dr. Christopher Roseberry- Board certified- General Surgery
Dr. David Chismark- Board certified- General Surgery

Patient preparation includes;

  • Pre-procedure assessment of patients
  • Validation of existing information and preparation of the patient, family, and significant others
  • Assisting patients, family, and significant others
  • Post-procedure assessment, intervention, and evaluation of potential problems that may result from the administration of sedation or analgesia and determining the next level of care required.
  • Preparing the patient, family and significant others for discharge to home or to an extended care environment.


Patients are assessed and reassessed along the continuum of care in the gastroenterology endoscopy unit. The appropriate level of care is determined based on patient needs.



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