NashobaServices and Clinical Centers


The gastroenterology (GI) department at Nashoba Valley Medical Center concentrates on the diagnosis and management of the full spectrum of GI disorders through the use of state-of-the-art technologies. Our GI specialists are experts at diagnosing and treating many disorders of the gastrointestinal tract, liver, gallbladder, and pancreas.

Gastroenterology Services

The GI department uses a variety of procedures and one of the most commonly performed procedures, colonoscopy, is a critical screening tool for cancer and other diseases of the colon. Endoscopic procedures are also used to diagnose gastroesophageal reflux disease (GERD) and diverticulitis.

Our endoscopy lab offers a full range of clinical services, including:

  • The Olympus EVIS EXERA III endoscopy system to diagnose, detect and treat GI diseases at an earlier stage when treatments are most successful
  • Colonoscopy for colorectal cancer screening with polyp removal
  • Endoscopic procedures
  • Diagnosis and management of inflammatory bowel disease (Crohn's disease and ulcerative colitis, including the management of these diseases during pregnancy)
  • Management of Hepatitis B and C, as well as other liver diseases
  • Small bowel enteroscopy
  • Placement of feeding tubes into the stomach (PEG) or small intestine (PEJ) for patients who require supplemental feeding
  • Palliation of gastrointestinal cancers using stent placement (esophageal, colonic, duodenalor biliary)
  • Gastroscopy

Meet the Gastroenterology Team

Dr. Older
Michael Older, MD

Dr. Chemmanur
Annie Chemmanur, MD


Endoscopy Lab
Nashoba Valley Medical Center
200 Groton Road
Ayer, MA 01469
Fax: 978-784-9402
Hours: Monday - Friday: 7 a.m. - 3:30 p.m.


Nashoba GI

Download an Overview of Nashoba's Gastroenterology Services

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