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Named One of the Nation’s Best ASCs by U.S. News & World Report!

Reflecting our commitment to continuous improvement, patient care and clinical quality.

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Celebrating Our Patient Experience Scores

Our Ratings Exceed National Averages

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Take Action at 45 to Beat the Trend!

More Young Adults Are Getting Colon Cancer.

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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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Prioritizing Patient Care

Our physicians exceed national benchmarks for quality care.

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How We're Keeping You Safe

Learn what steps we've added to keep you safe

Prevent Colon Cancer

Learn more about colonoscopies.

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About Us

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Lancaster’s Leading GI Specialists Dedicated to Patient Care

The gastroenterologists and staff at MidAtlantic Endoscopy are dedicated to providing quality, affordable care to the greater Lancaster community in our quest to lower colon cancer rates and treat an array of digestive diseases, including Crohn’s Disease, irritable bowel syndrome (IBS) and gastroesophageal reflux disease (GERD).

MidAtlantic Endoscopy is skilled in performing a myriad of digestive procedures, including colonoscopy, esophageal dilation, flexible sigmoidoscopy, upper endoscopy and small bowel enteroscopy.

With two convenient locations in Lancaster and Ephrata, we proudly serve the Lancaster, York and Hershey areas. Our new, state-of-the-art facility in Lancaster offers all the technology of a hospital in a comfortable, relaxed environment. The new center replaces two centers located within the Penn Medicine Lancaster General Health Suburban Out-Patient Pavilion with one convenient location, offering the same high quality of patient care in a new updated environment. We also have an Ephrata location at 4140 Oregon Pike.

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For Your Visit

Our Lancaster gastroenterologists and staff at MidAtlantic Endoscopy are committed to ensuring your experience with us is relaxed and worry-free, from your first office visit through your post-procedure follow-up. To assist us, we ask that you read and comply with all guidelines.

We’re pleased to announce our new partnership with StopColonCancerNow.com to help boost colon cancer screenings and prevention for residents in the area.

Patient Forms

At MidAtlantic Endoscopy, your time is as valuable to us as it is to you. Upon scheduling your surgery, a member of our staff will provide you with the required forms to fill out.

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Insurance and Billing

MidAtlantic Endoscopy accepts most major insurance. As a courtesy to you, we will bill your insurance carrier; however, we cannot tell you what your policy will cover.

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Artificial Intelligence

MidAtlantic Endoscopy 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 our gastroenterologists in identifying polyps.

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Meet Our Physicians

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Paul D. Allegretti Paul D. Allegretti D.O., FACG John D. Betteridge John D. Betteridge M.D. Joseph Chapman Joseph Chapman D.O. Kaci Christian Kaci Christian M.D. Daniel C. Connell Jr. Daniel C. Connell Jr. M.D. Scott Douglas Scott Douglas M.D. Christopher Evans Christopher Evans D.O. Christopher P. Farrell Christopher P. Farrell D.O. T. Raymond Foley T. Raymond Foley M.D., AGAF Justin J. Harberson Justin J. Harberson M.D. J. David Horwhat J. David Horwhat M.D., FACG, FASGE Mark H. Johnston Mark H. Johnston M.D., FACG, AGAF, FACP Ketan G. Kulkarni Ketan G. Kulkarni M.D. Mehul J. Lalani Mehul J. Lalani M.D. Ben G. Lazarus Ben G. Lazarus D.O. Andrew Lee Andrew Lee M.D. Clifford T. Lomboy Clifford T. Lomboy M.D. Melissa G. Morgan Melissa G. Morgan D.O. Rajesh Panchwagh Rajesh Panchwagh D.O., F.A.C.P. Ameet N. Parikh Ameet N. Parikh M.D. Alison Platt Alison Platt D.O. Evan Shelby Evan Shelby M.D. Christopher E. Shih Christopher E. Shih M.D., FACG David M. Smith David M. Smith M.D. Dale Whitebloom Dale Whitebloom D.O. Lisa Yoo Lisa Yoo D.O.
4.8/5
4.8 /5
1,046 Reviews

Google
3.0/5
May 6, 2026
Google • MidAtlantic Endoscopy, LLC

I have mixed feelings about my experience so far. Communication (verbal or messaging) has been difficult and not always timely. First and foremost I was never given a script for pain after the procedure. Apparently the order was never written or received by the triage nurses. Also lacking were clear discharge instructions on what to expect in the days immediately after. Secondly, scheduling subsequent appointments has been somewhat of an ordeal in finding an available dates. On a more positive note the ancillary staff have been pleasant to deal with and helpful in alleviating my worries and concerns, Daniela H, PAC2, Michelle B, RN, and PA Andrew G in particular are worthy of appreciative praise. Having worked in healthcare for over thirty-five years, I fully realize that clear and timely communication is often lacking or misconstrued and places the patient at the mercy of others. The system is at fault, especially in these outpatient settings where quantity often supersedes the quality of care. “Get ‘em in and get ‘em out” within a certain and restricted timeframe. Hasn’t managed care been a wonderful thing for patients, providers and support staff? So, the final assessment of my care and treatment is yet to be determined. I just hope others less informed or knowledgeable of medical procedures and office practices are given better care and treatment than I have up to this point.

Google
5.0/5
May 6, 2026
Google • MidAtlantic Endoscopy, LLC

Google
5.0/5
May 6, 2026
Google • MidAtlantic Endoscopy, LLC

Google
5.0/5
May 6, 2026
Google • MidAtlantic Endoscopy, LLC

Staff and everyone was so nice and considerate

Google
5.0/5
May 6, 2026
Google • MidAtlantic Endoscopy, LLC

I was treated very good. Everything was explained to me from beginning to end. The staff is very professional. I had no anxiety. All my questions were answered. So glad I had this done at LGH Thank you


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