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Granite State Gastroenterology

5 out of 5 · 73 reviews

Gastroenterology • Peterborough, NH • Multiple locations locations

About

Granite State Gastroenterology is a New Hampshire-based GI clinic offering general GI disorders care, inflammatory bowel disease (IBD) management, esophageal motility disorders, liver disease, and hepatitis C treatment. Headquartered in Derry with five New Hampshire offices (Derry, Raymond, Windham, Bedford, plus satellite in Derry). They emphasize patient choice and clear communication, supported by a small team of 13 staff led by gastroenterologist managing partner Dr. Leon McLean. If you’re looking for GI/IBD services in the Peterborough area, Granite State Gastroenterology may be a regional option to consider, noting they primarily serve NH with multiple locations. Contact numbers: several listed (603) 437-0118, (603) 432-8802, (603) 752-6474, (603) 752-2300.

Clinic Type

Gastroenterology

Address

6 Tsienneto Rd Ste 301, Derry, New Hampshire 03038, US

Phone

603-432-8802

Email

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Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

  • gastrointestinal disorders
  • inflammatory bowel disease
  • esophageal motility disorders
  • liver disease
  • treating Hepatitis C
  • gastroesophageal reflux treatments
  • colonoscopies
  • polyp removal
  • treatment of rectal bleeding
  • gastroduodenoscopy (upper endoscopy)
  • capsule endoscopy
  • PEG tube placement
  • acid reflux testing
  • general GI care

Technology & Equipment

  • gastroscopy/upper endoscopy
  • colonoscopy
  • capsule endoscopy
  • PEG tube placement
  • colorectal cancer screening and polyp removal
  • endoscopy equipment

Insurance & Payment

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Cash, Credit/Debit Card, Medical Financing (e.g., PayMyDoctor), Insurance (varies by location)

Financing: PayMyDoctor financing option (link provided)

Languages Spoken

  • English

Current Offers

New patient information

Social Media

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • Birdeye/Google: 5 out of 5 stars (73 reviews)

Patients praise

  • Knowledgeable, caring, and professional providers
  • Thorough patient evaluations
  • Personable bedside manner and clear communication
  • Timely appointment scheduling

Common complaints

  • Some negative feedback regarding practice operations noted in external contexts

"I highly recommend Dr Lynch. She is very caring and considerate. She is easy to share your concerns with and you are never rushed. She is genuinely concerned with your care"

— Patient review via rater8

"He is very thorough, therefore I have confidence in his decisions regarding my health and well being."

— Patient review via rater8 for Dr. Leon P. McLean

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026.

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