A gastroenterologist, or GI doctor, specializes in the study of the anatomy, physiology, diseases and treatment of the digestive organs. This includes the stomach, intestines, esophagus, liver, gallbladder, colon, pancreas and any other related structures.
I see a gastroenterologist because I have gastroesohageal reflux disease (GERD), peptic ulcers and diverticulosis. My GI doctor has removed my gallbladder and performed endoscopies and colonoscopies.Thankfully, the last procedure only needs to be performed every five years.



