General Info

Shannon Williams, FNP, is a certified gastroenterology nurse practitioner who sees patients 18 and older. She addresses a range of conditions affecting the esophagus, stomach, pancreas, liver, gallbladder, and colon. These include gastroesophageal reflux disease (GERD), irritable bowel syndrome (IBS), inflammatory bowel diseases, such as Crohn's disease and ulcerative colitis, Barrett’s esophagus, celiac disease, and gastroparesis. She assists with colon cancer screenings and endoscopies. This practice is a part of BJC Medical Group of Illinois.