NH Gastroenterology offers you the latest care and treatment options for a wide-range of digestive conditions and disorders including conditions of the esophagus, stomach, small intestine, colon and rectum, pancreas, gallbladder and bile ducts.
Your safety is our priority. Every patient is COVID-19 tested prior to any procedure.
Conditions & Expertise
- Celiac Disease
- Diverticulits
- 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)
- Disorders of the Pancreas
- Swallowing disorders
- GI services offered include:
- Radiofrequency ablation treatment for Barrett’s esophagus
- Bravo pH monitoring system
- Capsule endoscopy
- Colonoscopy
- Endoscopic retrograde cholangiopancreatography (ERCP)
- H pylori breath test
- Manometry
- Upper endoscopy
- Small bowel endoscopy
- Small bowel bacterial overgrowth testing
Preparing for your colonoscopy
- Barrett’s Esophagus
- Celiac Disease
- Diverticulits
- 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)
- Disorders of the Pancreas
- Swallowing disorders
GI services offered include:
- Radiofrequency ablation treatment for Barrett’s esophagus
- Bravo pH monitoring system
- Capsule endoscopy
- Colonoscopy
- Endoscopic retrograde cholangiopancreatography (ERCP)
- H pylori breath test
- Manometry
- Upper endoscopy
- Small bowel endoscopy
- Small bowel bacterial overgrowth testing
Preparing for your colonoscopy
Use the below instructions to help you prepare for your colonoscopy appointment. If you have any questions regarding the prep or if you need to confirm which prep instructions are appropriate for your upcoming appointment, please contact our office directly at
603.924.1759