Atlantic Digestive Specialists

Helping people inside & out

  • Our Physicians
    • Aristotle J. Damianos, MD
    • Roger M. Epstein, MD
    • Brian H. Hyett, MD
    • Sukeerti Kesar, MD
    • Jennifer Lewis, MD
    • Sean P. Lynch, MD
    • William E. Maher, MD
    • Khushboo Munot, MD
    • Robert A. Ruben, MD
    • Sonya Alyea, APRN
    • Shelby Menard, APRN
    • Alyssa Young, APRN
    • Robert Ketchum, PA
    • Kathy Gibson, PA
    • Kerry Loan, PA
    • Rachel Whitman, PA
    • Jenna Adams, FNP
  • Conditions
    • Acid Reflux
    • Eosinophilic Esophagitis
    • Irritable Bowel Syndrome (IBS)
    • Barrett’s Esophagus
    • Food Allergies
    • Lactose Intolerance
    • Celiac Disease
    • Esophageal Diseases
    • Liver Disease
    • Cirrhosis
    • Gallstones
    • Nausea/Vomiting
    • C. Difficile Infection (C. diff)
    • Gastroesophageal Reflux (GERD)
    • Obesity
    • Colorectal Cancer
    • GI Infections
    • Pancreatitis
    • Constipation
    • Heartburn
    • Peptic Ulcers
    • Crohn’s Disease
    • Hemorrhoids
    • Polyps
    • Diarrhea
    • Hepatitis
    • Ulcerative Colitis
    • Diverticulitis
    • Inflammatory Bowel Disease (IBD)
  • Procedures
    • Bacterial Overgrowth Breath Test (SIBO)
    • Colon Cancer Screening
    • Colonoscopy
    • Endoscopic Retrograde Cholangiopancreatography
    • Endoscopic Ultrasound (EUS)
    • Esophageal Manometry
    • Esophagogastroduodenoscopy
    • Helicobacter Pylori Breath Test
    • Lactose Intolerance Breath Test
    • Liver Biopsy
    • pH Probe Placement – Impedance
    • Photodynamic Therapy
    • Radiofrequency Ablation of Barrett’s Esophagus
    • Video Capsule Endoscopy
  • Prep Instructions
    • Colonoscopy Preparations
      • Gatorade Miralax Colon Prep Instructions
      • Mag Citrate Colon Prep Instructions
      • Moviprep Colon Prep Instructions
      • Nulytely Colon Prep Instructions
      • 5 Day Miralax/Nulytely Prep Instructions
      • OSMO Pill Colon Prep Instructions
      • Prepopik Split-Dose Colon Prep Instructions
      • Suprep Split-Dose Colon Prep Instructions
    • Sigmoidoscopy Preparations
      • Sigmoidoscopy Hospital Prep Instructions
      • Sigmoidoscopy In-Office Prep Instructions
    • Upper Endoscopy Preparations
      • Esophageal Manometry Prep Instructions
      • Upper Endoscopy Hospital Prep Instructions
      • Upper Endoscopy In-Office Prep Instructions
    • Other Preparations
      • H-Pylori Breath Test Prep Instructions
      • Lactose Tolerance Testing Prep Instructions
      • Outpatient Liver Biopsy Prep Instructions
  • For Patients
    • Patient Portal
    • Patient Forms
    • Frequently Asked Questions
    • Colorectal Cancer Screening Guidelines
    • Insurance Accepted
    • Our Affiliates
    • Testimonials
    • Patient Reviews
    • News and Events
    • Health Links
    • Notice of Non-Discrimination
    • Video Gallery
  • Locations
  • Pay Your Bill

Patient Reviews

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Atlantic Digestive Specialists
Average rating:  
 4 reviews
Jane H.
Feb 18, 2019
 by Jane H.
THE BEST

Dr Marylyn Grondin was truly amazing! She is compassionate , friendly, efficient while still remaining profession but on such a different level than most surgeons. Cindy, who does the booking for procedures and educating you specifically on how to do the prep was also very kind, good, knowledgeable and patient! And lastly, the nursing staff and anesthesiologist at Portsmouth Regional Hospital who assist Dr Grondin were absolutely fabulous! Unfortunately, I can not remember all the names of the wonderful ladies who assisted in my two procedures.

Brenda T.
Feb 1, 2019
 by Brenda T.
Dr Lewis

I’ve suffered for 2 years with severe abdominal pain..I see a gastroenterologist at MGH. He was not listening to me and just kept prescribing meds that did not help. I was referred to Atlantic Digest by Pain Care and was lucky to be connected with Dr Lewis. She saw me right away and scheduled an endoscopy. She found ulcers, prescribed proton is and within a week my pain had gone from a 10 to a 6. She is very patient and listens to you. I highly recommend her.

Peggy L.
Aug 1, 2018
 by Peggy L.
Terrific!

It was a real joy to meet with Mary Brennan for a follow up on my digestive health. She is interested and interesting and a real pro.

Brian D.
Jul 27, 2017
 by Brian D.
Brian Hyett and Thea

Great care and Thea is very easy to speak with especially when you feel embarrassed about having Crohns.

Dr. Hyett is providing excellent care plan to bring my disease under control which is getting better,

I am newly diagnosed with Crohns.

Office is very busy but they do get back with you either same day or next which is very reasonable..

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