We are accepting all major insurance including Anthem BCBS!

Patient Reviews

Finding a provider who will truly listen to your concerns is not always easy. Here at Specialists in Gastroenterology, our patients are always our top priority. Our gastrointestinal providers create a thoughtful, caring environment where you can feel heard and all of your GI concerns are addressed. You can trust us to provide you with customized care for you and your condition. Feel free to browse through our reviews, so that you can see for yourself the time and dedication that our specialists give to each one of our patients in the St. Louis, MO community.

5.0 Review from H.W. Source: Google Oct 05 2023

"She listened to me and was empathetic."

5.0 Review from C.“. Source: Google Jun 26 2023

"Clinical excellence + compassion and genuine caring wrapped up into one human being is the best way I can describe Dr. Thyssen. He is a skilled GI doc who listens, asks questions and works with you to make sure you are getting great care. I am a nurse and really picky about the doctors I choose for myself and my family - Dr. Thyssen is fabulous!"

5.0 Review from J.C. Source: Google Jun 26 2023

"Everyone on the staff is dedicated to making sure the patient is cared for from the moment they walk in the door until the moment they are taken to their car by wheelchair. Dr. Thyssen is one of the best doctors in St. Louis and I am in good hands with him."

5.0 Review from D.M. Source: Google Apr 26 2023

"It was an amazing experience everyone was truly stars…"

5.0 Review from M.B. Source: Google Apr 26 2023

"Had a colonoscopy today, never pleasant but Dr.Singh made me feel very comfortable. Would highly recommend Dr Singh and her facility (SIG) for any proceedures needed. Everyone there was great and makes you feel at ease from start to finish."

5.0 Review from F.G. Source: Google Dec 27 2022

"Great service"

4.0 Review from V.B. Source: Google Nov 26 2022

"Dr Roots was Very nice and very professional. He answered all my questions with no hesitation. The nurses and the techs were all great."

5.0 Review from J.G. Source: Google Oct 26 2022

"Dr Singh and Nikki are the best. They take great care of my Crohn’s and help me be healthy."

5.0 Review from J.H. Source: Google Oct 26 2022

"Dr. Root, the techs, nurse anesthetists—everyone was so amazing! Really made me feel at ease and cared for throughout the whole experience. It was my first colonoscopy and I couldn’t have asked for a better team."

5.0 Review from D.G. Source: Google Oct 26 2021

"Dr Root is fabulous. I had tried to have a colonoscopy the day before with another Dr who couldn’t perform it due to the difficulties with the prep prescribed. Dr Root got me in the next day, and while I was still having issues, he was able to do it, but it took him a bit longer. I so appreciate him staying with me to finish the procedure."