HealthcareDiscovery.AI / Doctors / New Hampshire / Derry / Gastroenterology

Gastroenterology in Derry, New Hampshire

Data updated monthly · Last refresh September 2026

4 Gastroenterology providers practice in Derry. Listings are drawn from federal public records and are not endorsements.

Gastroenterology providers in Derry

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Knut Roalsvig, MD
Derry, NH · No drug or device payments recorded (2025) · (603) 432-8802
Dr. Leon Mclean, MD
Derry, NH · $44,904 in drug and device payments (2025) · Telehealth · (603) 432-8802
Dr. Steven Taylor, MD
Derry, NH · No drug or device payments recorded (2025) · (603) 432-8802
Dr. Steven Tsistrakis, M.D
Derry, NH · $284 in drug and device payments (2025) · Telehealth · (603) 432-8802

Conditions Gastroenterology providers in Derry, New Hampshire commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Gastroenterology providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Gastroenterology providers are in Derry, New Hampshire?

There are 4 Gastroenterology providers with active NPI records practicing in Derry, according to federal NPPES data refreshed monthly.

What conditions do Gastroenterology providers in Derry treat?

Gastroenterology providers in Derry commonly treat acid reflux, IBS, Crohn disease, ulcerative colitis, celiac disease and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

All specialties in Derry Gastroenterology across New Hampshire

Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.