We’ve Been Named One of U.S. News & World Report’s Best!
The Endoscopy Center and The Endoscopy Center North have been named one of the Best Ambulatory Surgery Centers in the nation by U.S. News & World Report.
Why Choose Us?
Our gastroenterologists and staff at The 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).
Our board-certified GI doctors specialize in a myriad of GI procedures, including colonoscopy, flexible sigmoidoscopy and upper endoscopy.
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!
For Your Visit
The 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 to help boost colon cancer screenings and prevention for residents in the Knoxville community.
Patient Forms
At The 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
The Endoscopy Center accepts most major insurance. As a courtesy to you, 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. We accept cash, check or credit card.
Meet the Doctors
View All Doctors
Johnny Altawil
M.D.
Steven J. Bindrim
M.D.
Zachary Dickson
M.D.
William Ergen
M.D.
Jeffrey S. Gilbert
M.D.
John M. Haydek
M.D., A.G.A.F., F.A.C.G., F.A.C.P., F.A.S.G.E
Jason Huffman
M.D.
Hannah Jones
D.O.
Kevin Patrick Meyers
MD
Tejal Mistry
MD
Matthew Moore
M.D.
Raj I. Narayani
M.D., F.A.C.G., F.A.S.G.E
Maria B. Newman
M.D.
Ramanujan Samavedy
MD
1,659 Reviews
Apr 7, 2026
Apr 7, 2026
They were very nice. I would recommend them to everyone. The doctor and nurses were all really good to me.
Apr 1, 2026
I would highly recommend Dr. Altawil for any gastrointestinal needs you may have. He is patient, has a pleasant bedside manner, and does a great job of explaining what may be causing your symptoms as well as outlining treatment options.
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The Endoscopy Center West Nominated for Best in Tennessee Award
Vote today for The Endoscopy Center in the Best in TN Awards! We’re Knoxville’s trusted ASC, delivering compassionate GI care and leading the fight against colon cancer.
Dr. Maria Newman and her staff are excellent! She put me at ease before the colonoscopy and was there afterwards to explain and answer questions. The nurses, the anesthesiologist, the lady at check-in......everyone was friendly and so kind and they knew how badly I wanted to get it over with. I highly recommend Dr. Maria Newman.