Top Doctor

Dr. Mark Epstein

Middlesex Digestive Health & Endoscopy Center


Middlesex Digestive Health & Endoscopy Center

45 Discovery Way
Acton, Massachusetts

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Middlesex Digestive is a highly specialized center at the forefront of the evaluation, diagnosis and management of digestive diseases including cancers, irritable bowel syndrome, inflammatory bowel disease and gastroesophageal reflux, among others, and is committed to lowering colon cancer rates. Its distinguished team of gastroenterologists offers world-class expertise and advanced technologies to provide effective, life-improving results. Able to perform procedures onsite, a rare credential in Massachusetts, patients receive comprehensive care with convenience and time-and-cost efficiencies.

List the treatments and procedures you offer:

Areas of Care:

• Board Certified Gastroenterologist


• Colonoscopy

• Upper Endoscopy

• Hemorrhoids

• Ulcerative Colitis

• Gastroesophageal Reflux Disease (GERD)

• Irritable Bowel Syndrome (IBS)

• Inflammatory Bowel Disease for Ulcerative Colitis

• Celiac Disease

• Liver and Pancreas Disease

• Esophageal Disease

• Abdominal Pain

Awards or Certifications

He was recognized as one of Boston Magazine’s “Top Doctors” in 2020.

What's your background, education and training?

Dr. Mark Epstein has more than 30 years in medical training and experience. He is board certified in Gastroenterology. He earned his medical degree from University of Witwatersrand Medical School in South Africa. Internal Medicine Residency, Gastroenterology fellowship at Tufts Medical Center. Previous faculty Tufts Medical Center. Service Chief of Gastroenterology at Emerson Hospital in Concord, MA. He is currently the president elect for Emerson Hospital Medical Staff and past chief of Gastroenterology at Emerson Hospital.

What do patients have to say about you?

Dr. Epstein’s ratings are among the best for Acton Gastroenterologists, receiving a combined average rating of more than four stars on Healthgrades and Vitals. Among his highest ratings are his accurate diagnosis, bedside manner and time spent with patient. One five-star reviewer says:

“Dr. Epstein is great in every dimension of patient care. He takes time to explain a procedure in advance and then ensures your satisfaction after the procedure. I highly recommend him.”

Hours of operation

8:30am to 5pm Monday – Friday, closed Saturday & Sunday

Insurances Accepted


Blue Cross & Blue Shield



First Health


Great West

Harvard Pilgrim


Medicare Railroad

Allways Health Plan


United Healthcare




Top Doctor: 2021