Gastroenterology St. Louis, MO

Advanced Treatments for GI Conditions

Learn More

Patient-Focused Care for All

Learn More

Understand GI Concerns

Find A Location

Find Your Local Gastroenterologist

My GI Journey

Want to share your GI journey? You can use your computer, phone, or tablet to easily create a short video sharing your path to better health. Click below to begin!

Record Your JourneyView Videos

Hundreds of happy patients

Dr. Weinstock have a lovely combination of professionalism and caringness. Incredibly knowledgeable and answered all questions.

N.T. Google

Dr Singh came so highly recommended by so many people that I met her for the first time in the prep room for my colonoscopy. She was so nice and made me feel at ease. Everyone was so nice and wanted to make sure I was comfortable. The nurse even gave me heated blankets to keep me warm. After the procedure Dr. Singh went over everything with me with pictures and explanations of what she found etc. I will definitely refer Dr Singh to my family and friends.

S.C. Google

I have every confidence in Dr Thyssens care. His staff is always pleasant.

S.K. Google

Dr.Root and his crew are amazing!!! They make you feel comfortable in an uncomfortable situation(colonoscopy) and answer all your questions without rushing you! They are all true professionals. From the receptionists up front to the Dr. and staff in the back!

J.J. Google

Love the personableness of Dr. Thyssen! The rest of the staff is also pleasant and helpful.

T.W. Google


Total Reviews


Average Rating

Gastroenterology Conditions


Gastroenterology Procedures

Top Rated Gastroenterologists


Patient Reviews

Your gastroenterology needs are at the forefront when you choose our team at Specialists in Gastroenterology. We’re a network of skilled and experienced GI professionals who are dedicated to getting you connected with the right resources and treatments. Our team looks forward to becoming a trusted source for your GI needs throughout the St. Louis, MO area. Improve your digestive health today and schedule an appointment.

About Us

An optimal way to detect and prevent cancer is to undergo a colonoscopy before cancer grows to a critical stage. Over 95 percent of precancerous polyps are identified during a colonoscopy and are removed during the procedure. Tissue samples from the polyps are sent to pathology to determine any signs of cancer. A colonoscopy is a preventative measure that safeguards your GI health by eliminating any polyps before they progress to a severe stage. A colonoscopy is a gold standard for both the prevention and detection of colorectal cancer.

Learn More

Crohn’s disease and ulcerative colitis are among the most common types of Inflammatory Bowel Diseases (IBD). Many Americans are affected, with around 1.6 million currently impacted by these diseases. IBD is a chronic condition that’s typically diagnosed in patients before the age of 35. As a chronic condition, it can be treated but not completely cured. There are approximately 70,000 new cases in children and adults detected each year.

Learn More

Prep Forms

About Home Screenings

Patient Portal