HealthcareDiscovery.AI / Doctors / New Hampshire / Gastroenterology

Gastroenterologists in New Hampshire

Data updated monthly · Last refresh October 2026

109 Gastroenterology providers practice in New Hampshire, including 44 (40%) offering telehealth. The largest concentration is in Lebanon. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

109providers
44telehealth
Lebanontop city

Gastroenterology by city in New Hampshire

Choose a city to see providers there.

Gastroenterology in Lebanon27 providers
Gastroenterology in Manchester18 providers
Gastroenterology in Concord13 providers
Gastroenterology in Nashua11 providers
Gastroenterology in Somersworth8 providers
Gastroenterology in Keene6 providers
Gastroenterology in Exeter5 providers
Gastroenterology in Derry4 providers
Gastroenterology in Bedford4 providers
Gastroenterology in Portsmouth3 providers
Gastroenterology in Salem3 providers
Gastroenterology in Stratham2 providers
Gastroenterology in Londonderry1 providers
Gastroenterology in Wolfeboro1 providers
Gastroenterology in Hooksett1 providers
Gastroenterology in Littleton1 providers
Gastroenterology in Peterborough1 providers

Gastroenterology providers in New Hampshire

Listed by city, largest first. 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. Michael Curley, MD, FRCPC
Lebanon, NH · No drug or device payments recorded (2025) · Telehealth · (603) 650-5261
Dr. Michael Winter, MD
Lebanon, NH · $3,679 in drug and device payments (2025) · Telehealth · (603) 650-5261
Dr. Nicholas Hannon, MD
Lebanon, NH · No drug or device payments recorded (2025) · Telehealth · (603) 650-5261
Dr. Peter Anderson, M.D.
Lebanon, NH · No drug or device payments recorded (2025) · (603) 653-9458
Dr. Richard Rothstein, MD
Lebanon, NH · No drug or device payments recorded (2025) · (603) 650-5217
Dr. Shelby Sullivan, MD
Lebanon, NH · $71,046 in drug and device payments (2025) · Telehealth · (603) 650-5000
Dr. Siddhartha Parker, M.D.
Lebanon, NH · No drug or device payments recorded (2025) · Telehealth · (603) 650-5261
Dr. Steve Bensen, M.D.
Lebanon, NH · No drug or device payments recorded (2025) · Telehealth · (603) 653-9458
Dr. Stuart Gordon, M.D.
Lebanon, NH · $350 in drug and device payments (2025) · Telehealth · (603) 650-6472
Dr. Timothy Gardner, MD
Lebanon, NH · $3,320 in drug and device payments (2025) · Telehealth · (605) 650-5000
Dr. Howard Mitz, D.O.
Littleton, NH · No drug or device payments recorded (2025) · (603) 444-0272
Dr. Laura Horton, M.D.
Londonderry, NH · $56 in drug and device payments (2025) · Telehealth · (603) 432-8802
Dr. Angelo Pete Horatagis, M.D.
Manchester, NH · No drug or device payments recorded (2025) · (603) 624-4366
Dr. Arathi Komarla, M.D.
Manchester, NH · $44 in drug and device payments (2025) · (603) 314-6900
Dr. David Golden, M.D.
Manchester, NH · No drug or device payments recorded (2025) · (603) 624-4366
Dr. David Sack, MD
Manchester, NH · No drug or device payments recorded (2025) · (603) 695-2500
Dr. Dmitriy Kedrin, M.D. PH.D.
Manchester, NH · $71 in drug and device payments (2025) · (603) 314-6900
Dr. Emilianos Karagiannis, M.D.
Manchester, NH · No drug or device payments recorded (2025) · (603) 624-8085
Dr. Francis Macmillan, M.D.
Manchester, NH · $26 in drug and device payments (2025) · (603) 695-2500
Dr. Gregory Mccarthy, M.D.
Manchester, NH · No drug or device payments recorded (2025) · (603) 695-2500
Dr. Johann Rothwangl, M.D
Manchester, NH · No drug or device payments recorded (2025) · (603) 624-4366
Dr. John Dowd, D.O.
Manchester, NH · $678 in drug and device payments (2025) · Telehealth · (603) 695-2500
Dr. Lawton Shick, M.D.
Manchester, NH · No drug or device payments recorded (2025) · (603) 695-2500
Dr. Michael Desimone, M.D.
Manchester, NH · $2,006 in drug and device payments (2025) · (603) 314-6900
Dr. Michael Murphy, MD
Manchester, NH · No drug or device payments recorded (2025) · (603) 624-6978
Dr. Stephen Wiener, M.D.
Manchester, NH · $50 in drug and device payments (2025) · (603) 314-6900
Dr. Stuart Jarvis, MD
Manchester, NH · $94 in drug and device payments (2025) · (603) 695-2500
Dr. Timothy Scherer, M.D.
Manchester, NH · No drug or device payments recorded (2025) · (603) 695-2500
Dr. Trinh Meyer, M.D.
Manchester, NH · No drug or device payments recorded (2025) · Telehealth · (603) 695-2500
Dr. Vincent Aguirre, M.D., PH.D.
Manchester, NH · No drug or device payments recorded (2025) · (603) 314-6900
Dr. Alan Freeman, M.D.,FRCPC,FACP
Nashua, NH · No drug or device payments recorded (2025) · (603) 891-4400
Dr. Annette Tobar, MD
Nashua, NH · No drug or device payments recorded (2025) · (603) 577-5355
Dr. Chengta Dai, MD
Nashua, NH · No drug or device payments recorded (2025) · (603) 578-9363
Dr. Jack Bueno, MD
Nashua, NH · No drug or device payments recorded (2025) · (603) 577-4000
Dr. Jassir Witta, M.D.
Nashua, NH · $119 in drug and device payments (2025) · (603) 577-5355
Dr. Mark Mallek, M.D.
Nashua, NH · No drug or device payments recorded (2025) · (603) 881-8000
Dr. Michael Kaczanowski, M.D.
Nashua, NH · $86 in drug and device payments (2025) · (603) 577-5355
Dr. Michelle Le, DO
Nashua, NH · $1,737 in drug and device payments (2025) · (603) 577-2000
Dr. Prasanna Gulur, M.D.
Nashua, NH · No drug or device payments recorded (2025) · (603) 578-9363
Dr. Srikrishna Nagri, M.D
Nashua, NH · No drug or device payments recorded (2025) · (603) 577-4000
Dr. Umer Syed
Nashua, NH · No drug or device payments recorded (2025) · (603) 578-9363
Dr. Peter Forssell, MD
Peterborough, NH · No drug or device payments recorded (2025) · (603) 924-3397
Dr. Khushboo Munot, MD
Portsmouth, NH · $369 in drug and device payments (2025) · Telehealth · (603) 692-2228
Dr. Marylyn Grondin, M.D.
Portsmouth, NH · $191 in drug and device payments (2025) · (603) 433-2488
Dr. Soumil Patwardhan, M.D.
Portsmouth, NH · $1,645 in drug and device payments (2025) · Telehealth · (603) 692-2228
Dr. Harbir Sawhney, M.D.
Salem, NH · $18 in drug and device payments (2025) · Telehealth · (603) 898-5082
Dr. Maurice Cohen, M.D.
Salem, NH · No drug or device payments recorded (2025) · (603) 898-5082
Dr. Raja Rehman, M.D.
Salem, NH · $145 in drug and device payments (2025) · Telehealth · (603) 898-5082
Dr. Aristotle Damianos, M.D.
Somersworth, NH · $422 in drug and device payments (2025) · Telehealth · (603) 692-2228
Dr. Dalia Mahmoud Hassan Elamin, MD
Somersworth, NH · $48 in drug and device payments (2025) · (603) 692-2228

Conditions Gastroenterology providers in 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 New Hampshire?

There are 109 Gastroenterology providers with active NPI records practicing in New Hampshire, according to federal NPPES data refreshed monthly.

Do Gastroenterology providers in New Hampshire offer telehealth?

Yes. 44 of the 109 Gastroenterology providers in New Hampshire (about 40%) report offering telehealth services in CMS data.

Which cities in New Hampshire have the most Gastroenterology providers?

Lebanon (27), Manchester (18), Concord (13) have the highest concentration of Gastroenterology providers in New Hampshire.

How many Gastroenterology providers in New Hampshire received drug or device company payments?

46 of 109 Gastroenterology providers in New Hampshire (42%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Gastroenterology providers in New Hampshire treat?

Gastroenterology providers 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 counts and profiles 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.

Do most Gastroenterologists in New Hampshire work in independent practices or large health systems?

Among 69 Gastroenterologists in New Hampshire enrolled in Medicare, 7% bill through a solo or small practice with fewer than 10 clinicians, 13% through a mid-size group of 10 to 99, and 80% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Gastroenterologists in New Hampshire work at?

According to CMS facility affiliation records, the New Hampshire hospitals where the most Gastroenterologists hold privileges are Mary Hitchcock Memorial Hospital in Lebanon; Elliot Hospital in Manchester; Cheshire Medical Center in Keene.

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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. Are you a Gastroenterology in New Hampshire? Get featured.