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Middlesex Digestive Health & Endoscopy CenterMiddlesex Digestive Health & Endoscopy Center

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Take Action at 45 to Beat the Trend!

More Young Adults Are Getting Colon Cancer.

Schedule Your Colonoscopy Today

Healthy Colon. Healthy You.

You can directly schedule your colonoscopy.

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AI May Improve Your Colonoscopy Findings

State-of-the-art Artificial Intelligence (AI) technology assists our doctors with screenings.

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No Out-of-Pocket Expense for Your Colonoscopy

By May 31, 2022, most health insurance plans will fully cover this procedure to evaluate a positive stool-based test for colon cancer. Check with your insurance about your coverage.

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Thank you, Acton!

We're Honored to Serve You

Virtual Tour

Take a virtual tour of our center today.

Prevent Colon Cancer

Learn more about colonoscopies.

Request an Appointment

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About Us

Learn more about our practice.

Acton’s Best GI Doctors Dedicated to Patient Care

Our Acton gastroenterologists and team at Middlesex Digestive Health & Endoscopy Center are dedicated to providing quality, affordable care to the community in its quest to lower colon cancer rates and treat digestive diseases, including Crohn’s Disease, irritable bowel syndrome (IBS) and gastroesophageal reflux disease (GERD).

We believe in compassionate medicine, where patients feel reassured and unrushed. We hold ourselves to the highest of standards, as our center is accredited by the Accreditation Association for Ambulatory Health Care (AAAHC).

Our board-certified GI doctors specialize in a myriad of GI procedures, including colonoscopy, esophageal dilation, flexible sigmoidoscopy, upper endoscopy and small bowel enteroscopy. Our patients value the compassionate care they receive from our GI doctors and say they are likely to recommend our center for GI procedures.

If you are due for a colonoscopy or in need of a GI procedure, don’t put it off any longer. Give us a call today!

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For Your Visit

Our Acton gastroenterologists and team at Middlesex Digestive Health & Endoscopy Center are committed to ensuring that your experience with us is relaxed and worry-free, from consultation through recovery. To assist us, we ask that you read and comply with all guidelines.

We’re pleased to partner with StopColonCancerNow.com to help boost colon cancer screenings and prevention for residents in Middlesex County.

Insurance and Billing

Middlesex Digestive Health & Endoscopy Center accepts most major insurance. We will bill your insurance carrier for you; however, we cannot tell you what your policy will cover. Since your insurance policy and coverage are between you and your carrier, we urge you to contact them prior to your procedure. You will be responsible for any co-pays and deductibles.

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Artificial Intelligence

Middlesex Digestive Health & Endoscopy Center has integrated state-of-the-art Artificial Intelligence (AI) technology to enhance the precision and effectiveness of our colonoscopy procedure. This AI system digitally analyzes real-time video feeds, assisting in identifying polyps. For your screening, you may benefit from a colonoscopy powered with Artificial Intelligence.

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Find Our Center

Watch this video for detailed directions and parking information.

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Meet Our Physicians

View All Physicians
Lauren Bleich Lauren Bleich M.D., MPH Michael DeSimone Michael DeSimone M.D. Mark Epstein Mark Epstein M.D. Gail Herzig Gail Herzig M.D. Benjamin Hyatt Benjamin Hyatt M.D. Ann Marie Joyce Ann Marie Joyce M.D., FASGE Peter Krims Peter Krims M.D. Frank Vanzandt Linn, Jr. Frank Vanzandt Linn, Jr. M.D.
4.9/5
4.9 /5
1,111 Reviews

Google
5.0/5
Mar 15, 2026
Google • Middlesex Digestive Health & Endoscopy Center

Google
5.0/5
Mar 14, 2026
Google • Middlesex Digestive Health & Endoscopy Center

I had an excellent experience at Middlesex Endoscopy. From the very thorough preparation instructions, provision of prescriptions by mail and reminders to the day of the colonoscopy, everything went off without a hitch. I was given a chance to call with any questions, view prep videos and confirm via text which was all very convenient. When I arrived, they were ready for me and each medical professional I met with explained each piece of the process in clear terms, and always checking to see if I had any questions. While they are handling a lot of people at once in different phases of the procedure, so that you may feel like you’re on a conveyer belt, I always felt in excellent hands and looked after. There were at least two people who told me they were going to take good care of me and I really appreciated that! It was very reassuring to hear that when you’re in such a vulnerable state. It was A+ care. There was also constant monitoring of my blood pressure and heart rate. There were good checks and balance as well as safety protocols in place, like having someone stand nearby as you got dressed, and walking you out to your ride. Though I do not remember a thing about the procedure, I felt pretty alert upon waking which makes me think the anesthesia was well-calibrated. A little while after I woke up I met with Dr. Bleich again, who let me know the results of the procedure. I founder her to be warm, professional and competent—I would recommend her and the rest of the staff wholeheartedly. I could also hear the staff interacting with other patients at times and was very impressed with their friendliness, professionalism, and ability to adjust to each patient’s capacity to absorb information.

Google
5.0/5
Mar 14, 2026
Google • Middlesex Digestive Health & Endoscopy Center

Intake Nurse Barbara, Dr. Epstein and Nurse Shelly were all very kind, explaining everything and I'm sure I felt very taken care of. Anesisiiologist (whose name I'm sad I forgot) was also wonderful I'm very attentive and concerned when I had some respiratory issues after my procedure. Would highly recommend this crew again!

Google
5.0/5
Mar 14, 2026
Google • Middlesex Digestive Health & Endoscopy Center

Everything is run efficiently. And the support staff is amazing. All the nurses were warm, friendly, and professional. No one likes getting a colonoscopy but Middlesex Digestive makes it as painless as possible

Google
5.0/5
Mar 14, 2026
Google • Middlesex Digestive Health & Endoscopy Center

Competent and relaxed atmosphere, and care. Attentive to needs and comfort by whole team and Dr. Epstein.


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Articles of Interest
Busy Life? Consider Direct Access Colonoscopy

Busy Life? Consider Direct Access Colonoscopy

Career, family and the nonstop pace of life demands your full attention. Direct Access Colonoscopy is a simple and convenient way to schedule your colon cancer screening.

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Dr. Mark Epstein Featured in Everyday Health

Dr. Mark Epstein Featured in Everyday Health

We’re proud to highlight that Dr. Mark Epstein of Middlesex Digestive Health & Endoscopy Center was recently featured in Everyday Health.

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Patient Finds Answers Through Timely GI Evaluation at ASC

Patient Finds Answers Through Timely GI Evaluation at ASC

Discover how one patient found answers for chronic digestive issues at an ambulatory surgery center (ASC).

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