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).
Hanover’s Best GI Doctors
Our gastroenterologists and staff at Hanover Endoscopy Center are dedicated to providing quality, affordable care to the 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).
We believe in compassionate medicine, where patients feel reassured and unrushed. We hold ourselves to the highest of standards, and our center is accredited by the Accreditation Association for Ambulatory Health Care (AAAHC).
Our board-certified GI doctors specialize in performing a myriad of GI procedures, including colonoscopy, esophageal dilation, flexible sigmoidoscopy, upper endoscopy and small bowel enteroscopy.
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!
For Your Visit
Hanover Endoscopy Center is 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 Hanover.
Patient Forms
At Hanover Endoscopy Center, your time is as valuable to us as it is to you. That’s why we provide online access to a variety of forms that patients may complete before their visit. The following documents will help us expedite the check-in process for your appointment. Please take a moment to download and print the appropriate form(s).
Insurance and Billing
Hanover 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 is 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.
Meet Our Physicians
View All Physicians
Matthew P. Askin
M.D.
Darren R. Blumberg
M.D.
John M. Dalena
M.D.
Kevin Elaahi
M.D.
Benjamin Kim
M.D.
Kelly A. Krueger
M.D.
John D. Morton
M.D.
David Pineles
M.D.
David Rahni
M.D.
Ellen J. Rosen
M.D.
Lawrence S. Rosenthal
M.D.
Robert W. Schuman
M.D.
Larry Siu
M.D.
Nicholas Tarangelo
M.D.
Carl B. Wallach
M.D., Medical Director
1,747 Reviews
Feb 6, 2026
Feb 6, 2026
Staff during all aspects of my procedure were pleasant, helpful and coommunicative. only exception would be the intake staff at the window. they were extremely loud when talking amoungst themselves without closing the window. not offensive just annoying to the people in the waiting that early in the morning.
Feb 5, 2026
Minimal wait, very pleasant personnel, good follow up information. Overall, a very positive experience.
Feb 5, 2026
My experience at the Hanover Endoscopy Center could not have been better. I did not wait at all to check in and once my paper work was complete my name was called and I went in to be prepped for my colonoscopy. My nurse, Rebecca was informative and kind. I met my doctor, Dr Sui, prior to the procedure as well as after and he was very thorough and took the time to explain everything to me. My anesthesiologist also explained everything clearly. The procedure went quickly and smoothly and my after care nurse Erich, was also kind and helpful. All in all an excellent experience. Thank you!
Feb 5, 2026
Nurses and doctors were professional and caring. Highly recommend this place!
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I procrastinated taking care of colonoscopy for longer than I care to admit to. It’s one of those things that is easy to put off. For me, I think a lot of it was just the anxiety of knowing that I’m going to have to be put under anesthesia and not knowing what to expect. Everything about Hanover Endoscopy Center is top-notch and professional. From the time you walk in, you are put at ease. The place is spotless clean. All of the team members have great personalities and seem very happy to be part of this amazing place. Everyone goes above and beyond to make sure that you feel comfortable and reassured. My doctor is Doctor Ellen Rosen. She met with me prior to the procedure to make certain that I had peace of mind and understood exactly what was going to take place. She also came in and visited with me after the procedure when I was in the recovery area. I was beyond relieved. I have had oil changes for my car that took longer than it did to get in and out of my procedure here. Stop putting off what could potentially save your life. I cannot strongly enough recommend Hanover Endoscopy Center. God Bless America! God Bless Blue and Gold! Remember Everyone Deployed Everyday!