A group of healthcare professionals at Monadnock Community Hospital stands together in a clinical setting, smiling and holding up peace signs. In the center, a man in navy blue scrubs holds a sign that reads, "2,000 PROCEDURES COMPLETED – Monadnock Community Hospital." The group includes individuals in scrubs, casual clothing, and business attire, all celebrating the milestone. The background features an orange accent wall, medical curtains, and hospital equipment.
Dr. Michael Gilbert, wearing a white medical coat with the Monadnock Community Hospital logo, smiles in a warmly lit hallway with brick walls and framed artwork.
A woman with shoulder-length dark hair and light skin stands in a professional office setting, smiling at the camera. She is wearing a black-and-white striped blouse under a light gray cardigan. The background features a brick hallway and a beige wall with a framed painting of a sailboat.

Call 603-924-2600 to schedule an appointment.

 

About Monadnock Gastroenterology Associates

Monadnock Gastroenterology Associates (MGA) offers you the latest care and treatment options for a wide range of digestive conditions and disorders including ones of the esophagus, stomach, small intestine, colon, rectum, pancreas, gallbladder, and bile ducts.

Castle Connolly Top Doctors 2025 graphic with a podium, laurel leaves, and a hexagonal badge; includes the text "Congratulations! Meet the top 7% of all U.S. physicians."CONDITIONS & EXPERTISE

  • Barrett’s Esophagus
  • Celiac Disease
  • Diverticulitis
  • Eosinophilic esophagitis
  • Esophageal and swallowing disorders
  • Gastrointestinal cancers
  • Gastroesophageal reflux disease (GERD)
  • Inflammatory conditions (Microscopic colitis, etc.)
  • Inflammatory bowel disease (Crohn’s Disease, Ulcerative Colitis
  • Irritable bowel syndrome (IBS)
  • Pancreas disorders
  • Swallowing disorders

New Hampshire Magazine Top Docs 2025 logo with maroon, blue, and white text and a medical caduceus symbol in a circle.GI services offered include:

  • Colonoscopy
  • H. pylori breath test
  • Upper endoscopy
  • Small bowel endoscopy
  • Small bowel bacterial overgrowth testing


Dr Micheal Gilbert

A testimonial graphic showing Judy and Craig Unger-Clark sitting side by side. The quote reads: “He also checked in to learn about our meetings with the surgeon. We’re very pleased Dr. Gilbert returned to Monadnock Community Hospital. Ecstatic, actually.” – Judy & Craig Unger-Clark. The MCH logo and website appear below.

By the Numbers:
GI Care That Makes a Difference

2,624

Endoscopy Procedures in 2025

Over 2,600 endoscopy procedures were performed in 2025 — helping detect and prevent serious gastrointestinal conditions.

Call to schedule

Hear From Our Community

A quote reads, “Dr. Gilbert was very good. He explained everything, addressed my concerns and answered my questions.” Includes Monadnock Gastroenterology Associates branding and hospital logo. Tagline: "Your life. Your health. Your voice."
A quote reads, “Everyone was very nice and I only waited a few minutes.” Features Monadnock Gastroenterology Associates branding and hospital logo. Tagline: "Your life. Your health. Your voice."
A quote reads, “Monadnock Gastroenterology Associates is good about responding to emails on the portal.” Includes Monadnock Gastroenterology Associates branding and hospital logo. Tagline: "Your life. Your health. Your voice."

Strong Performance in Colon Polyp Detection

Monadnock Gastroenterology Associates demonstrates strong performance in adenoma, or precancerous polyp, detection. According to the New Hampshire Colonoscopy Registry, MCH’s Gastroenterology team had an adenoma detection rate of 41.5% for all exams from March 2024 through July 2025, exceeding statewide composite benchmarks.

Finding and removing adenomas during colonoscopy can help prevent colorectal cancer before it develops.

Learn more about MCH’s colon polyp detection performance.

Colonoscopy Procedure Information for Patients

Endoscopy Procedure Information for Patients

Colonoscopy and Upper Endoscopy Preparation Instructions

Information for Patients

Medical Arts Building with a well-lit entrance at night

Graphic inviting people to nominate a nurse for a DAISY Award, featuring the DAISY Foundation logo with white daisies and green text box, in memory of J. Patrick Barnes. Includes the text 'Want to thank a nurse for extraordinary care? Share your story!' on a teal background