Atlantic Digestive Specialists

Gastroenterology • Somersworth, NH • Since 1973

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About

Atlantic Digestive Specialists is a private gastroenterology practice based in Somersworth, NH (founded 1973). They offer GI consultations, colonoscopy and endoscopy services, and operate a patient portal. The practice has 5 offices in New Hampshire (including Somersworth HQ at 21 Clark Way) and Portsmouth/Hampton area coverage. Board-certified gastroenterologists (Drs. Damianos, Epstein, Grondin, Hyett, Kesar, Lewis, Lynch, Maher, Munot, Ruben) provide care for esophagus, stomach, intestines, liver, and pancreas conditions. Contact: (603) 433-2488 or (603) 692-2228.

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Clinic Type

Gastroenterology

Address

21 Clark Way, Route 108 Somersworth, NH 03878

Phone

(603) 692-2228

Email

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Opening Hours

8:00 am - 5:00 pm

Website

https://atlanticdigestive.com/our-locations/somersworth/

Services Offered

Gastroenterology

Insurance & Payment

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Languages Spoken

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Social Media

Youtube Facebook

Photos

What Patients Say

Overall sentiment across review platforms: mixed

Birdeye: 4.3/5 (601)
WebMD: Not specifically aggregated (1)

Patients praise

Some physicians described as knowledgeable, efficient, and caring
Instances of effective diagnosis and treatment for specific conditions like IBS
Staff noted as professional by some patients

Common complaints

Reports of unprofessional, rude, or dismissive staff and physician bedside manner
Issues with appointment scheduling, communication, and responsiveness
Concerns regarding medical outcomes, specifically regarding post-procedure complications
Complaints about billing and charges

"If I could leave a review with no stars I would. These are people who will not even return a call to confirm an appointment for a colonoscopy... The actual doctors might be great, but their support staff? HORRIFIC......"

— Birdeye review

"Heavy bleeding two days after the first one; E.R visit to repair leaks for second visit. Atlantic Digestive admits to no mistakes, wrongdoing, or responsibility, and does not answer my written correspondence."

— WebMD review

"Dr Marylyn Grondin was truly amazing! She is compassionate , friendly, efficient while still remaining profession but on such a different level than most ..."

— Atlantic Digestive Specialists website

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. Own this clinic? Claim or correct this listing.