Top Doctor

Dr. Raj Devarajan

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

• Psychiatry


• Colonoscopy

• Upper Endoscopy

• Therapeutic Endoscopist (ERCP)

• Hemorrhoid Banding

• Gastroesophageal Reflux Disease (GERD)

• Irritable Bowel Syndrome (IBS)

• Celiac Disease

• Ulcerative Colitis

• Abdominal Pain

Awards or Certifications

In 2019 and 2020, Boston Magazine dubbed Dr. Devarajan a “Top Doctor.”

What's your background, education and training?

Dr. Raj Devarajan has more than 30 years of medical training and experience. He is board certified in Gastroenterology, Internal Medicine, Psychiatry and Child Psychiatry. He earned his medical degree from Madras Medical College in Chennai, India, and completed his residency and gastroenterology fellowship training at the Yale, Harvard University and Tufts University medical centers.

Dr. Devarajan is currently the president of the Massachusetts Gastroenterology Association. He has served as chief of Gastroenterology at Nashoba Valley Medical Center and Emerson Hospital, where he also served as president of medical staff. He has introduced advanced therapeutic procedures at both hospitals. He also served as president of the American Association of Gastroenterology of Indian Origin. He was former chair of Emerson Hospital’s bylaw committee, a member of Independence Physicians Association and chair of the credentials committee.

Born in India, Dr. Devarajan has lived in America since age 9. His father was a physician, and pursuing a career in medicine became Devarajan’s passion from a very early age. In 1994, he moved to Acton, where he raised his two sons, Karthik and Shiva. He enjoys world traveling and golf in his personal time.

What do patients have to say about you?

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

“Dr. Devarajan is the kind of doctor who makes you feel at ease because it is obvious how much he knows about digestive health. I was very impressed with Dr. Devarajan. He and his staff are the best!”

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