A gastroenterologist is a healthcare professional who has been educated and trained to treat patients who are experiencing health problems or have diseases that affect the gastrointestinal tract and liver. They also diagnose and treat diseases that affect the esophagus, stomach, small intestine, colon, rectum, pancreas, gallbladder, bile ducts, and liver.

An internist or Internal Medicine doctor is someone who specializes in diagnosing and treating illnesses, diseases, and health problems. Most internists are also primary care doctors and treat patients on a regular basis. They can diagnose and treat common illnesses or more serious problems. Most people see an internist regularly. Those with chronic illnesses may do so on a monthly or even weekly basis. Internists are the most common types of doctors.

Radiation oncology is the field of medicine that aims to treat cancer with radiation therapy. The doctors who treat cancer in this way have an in-depth understanding of the unique problems patients face when they undergo radiation and can, therefore, give them a more beneficial experience. They can help their patients explore a wide variety of treatment options, so they can pick the kind of radiation therapy that’s right for them and their specific conditions.