Are gastroenterologists surgeons

They are trained to do procedures on the intestines via the mouth or rectum with a camera. They do not make incisions to take out your gallbladder for instance. They would do one procedure to see that the gallbladder was the problem, and they can sometimes fix that problem using special tools via a tube in your mouth, but a surgeon would be the one to actually remove your gallbladder. They are trained like a regular medical physician/internist and then have one additional year (usually) of extra training in the procedures. Surgeons have usually 5-7 years of training (or more sometimes) specifically in the procedures that they do.