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).
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
1,652 Reviews
Mar 28, 2026
Mar 28, 2026
If I can give one star I will... I saw the nurse Carr for 1 year i saw the specialist only one time. Just nurses. They kind of know one said one thing other one other thing. I suffer from SIBO/M. I told Dr carr I was feeling exhausted that my symptoms back he said to me. You need to tell that to your primary Dr. I said to him. SIBO/M. I investigate deeply. Cause chronic fatigue muscle pain joint pain because the bacteria eats all the nutrients. He didn't say a word. After that i look for a second opinion. Today I got a letter from gastrointestinal associates they discharge me... why? Because I was looking for a second opinion. Cero stars from me. Be aware from this clinics... they don't like if you look for a second opinion. Period. I am so disappointed
Mar 26, 2026
I was extremely happy with Dr. Moore, the way he explained my colonoscopy was very thorough and is willingness to answer any question either my husband or I had.
Mar 26, 2026
Dr. Dickson is an excellent physician. He did not rush through my appointment, but took time with me to help with my stomach issues. I felt very at ease talking with him about the embarrassing questions we all have.
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