Gastroenterology is a branch of medicine that deals with the diagnosis of intestine, liver and stomach disorders. The doctors skilled in the treatments of liver and stomach issues are known as gastroenterologists. Different surgeries are performed as gastroenterology treatments. You can avail all procedures from the Best Gastroenterologists in Delhi through the hospital network of credihealth. Credi health links you directly with the super specialty centers of the area you reside in. Necessary Qualifications in Gastroenterology.