Digestive System Career- Gastroenterologist

Gastroenterologists specialize in treatment of chronic or acute conditions of the digestive tract, including the esophagus, stomach, intestines, and colon. Also, most gastroenterologist also practice some hematology, which is the treatment of liver disease and maladies. Gastroenterology is a sub-specialty of Internal Medicine, so they do not perform surgery on the digestive system. 

A gastroenterologist has completed all of the same training as an internist: 4 years undergraduate, 4 years medical school and 3 years of residency) plus three years of fellowship training in Gastroenterology. Common activities of a gastroenterologist includes documenting patient profiles, directly caring for others, making important decisions over others' health, and interpreting symptoms into diseases. The average compensation for a gastroenterologist is $496,139 annually.

Sources:
http://www.mymajors.com/career/gastroenterologist/skills/