Gastroenterology St. Louis, MO

Advanced Treatments for GI Conditions

Research

Patient-Focused Care for All

Research

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

This is a wonderful facility with exceptional people!!! You are excellent!

S.S. Google

Everyone was friendly and professional. The procedure went smoothly.

D. Google

Check in & pre check in went smoothly. Nursing , technical staff and anesthesia went smoothly. Dr Thyssen has been following my challenging health problem and I'm anxious to see what the next steps are for full recovery.

P.H. Google

I was very pleased with this place and Willie going back in 5 years for my follow up!

D.“. Google

Dr. Thyssen has been my G.I. Doctor for many years, he's very friendly, knowledgeable & professional. His office staff are friendly, professional & helpful. My appointments are usually on time with very little time spent waiting. I highly recommend this office.

J.H. Google

858

Total Reviews

4.9

Average Rating

Gastroenterology Conditions

Colonoscopy

Gastroenterology Procedures

Top Rated Gastroenterologists

Locations

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.

Research

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.

Research

Prep Forms

About Home Screenings

Patient Portal

Blog