Granite State Gastroenterology
Gastroenterology • Berlin, NH • multiple locations
About
Granite State Gastroenterology is a New Hampshire-based GI clinic with 5 offices (including its headquarters at 6 Tsienneto Rd, Derry). They offer services in general GI disorders, inflammatory bowel disease, esophageal motility disorders, liver disease, and hepatitis C treatment. Key contact numbers include multiple NH lines: (603) 437-0118, (603) 432-8802, (603) 752-6474, and (603) 752-2300. They emphasize patient choice and communication, with a small team (about 13 employees) led by Managing Partner Gastroenterologist Leon McLean. Consider calling one of the NH numbers or visiting granitegastro.com to connect with the closest office.
Clinic Type
Gastroenterology
Address
160 S. River Road, Bedford, NH 03110
Phone
Bedford: (603) 432-8802
—
Opening Hours
The Londonderry office is open 8am – 5pm, Monday – Friday. All other sites’ office hours vary from week to week.
Services Offered
—
Insurance & Payment
—
Languages Spoken
—
FAQs
What are your office hours?
The Londonderry office is open 8am – 5pm, Monday – Friday. All other sites’ office hours vary from week to week.
How do I contact you with questions?
Please use Klara secure messaging to contact us with any questions. Simply click on the purple chat bubble in the bottom right corner and follow the directions!
Social Media
Photos
What Patients Say
Overall sentiment across review platforms: mixed
- WebMD Care: 4.5/5 (6 ratings (Dr. Leon Mclean))
- Birdeye: 5/5 (73 reviews)
- Yelp (Derry): 2.3/5 (7 reviews)
Patients praise
- Professional and friendly staff in some interactions
- Thorough care and clear instructions from certain providers (e.g., Stephanie Lynch, PA-C)
- Positive experiences with routine procedures like colonoscopies
Common complaints
- Concerns regarding communication with providers and feeling unheard
- Difficulty with scheduling follow-up appointments
- Concerns about the quality of care provided by physician assistants vs. doctors
- Negative feedback regarding billing or lack of responsiveness to patient inquiries
"Dr McLean doesn't listen to his patients. He did nothing to alleviate pain and suffering nor did he come up with an effective treatment plan."
— Vitals (Dr. Leon Mclean)"Stephanie Lynch was very helpful and personable. She helped me in getting an appointment in a timely fashion"
— Birdeye (Stephanie Lynch, PA-C)Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Bravo pH Probe Study in Bedford, NH and Londonderry, NH | Granite State Gastroenterology — Dec 1, 2025
- 🏥 Multiple Healthcare Openings in Berlin, NH – Nurses & Practitioners - NewsBreak — Jun 27, 2026
- Dr. Bassi joins TidalHealth Gastroenterology | New Providers | TidalHealth — Aug 15, 2025
- ConvenientMD Primary Care Expands Portsmouth Team With 3 New Providers | Portsmouth, NH Patch — May 15, 2026
Information sourced from the clinic's website as of July 11, 2026.
Comparing your options?
See other gastroenterology clinics in Berlin, or search the full directory by insurance, ratings, and more.