A gastroenterologist is a medical doctor specializing in diseases of the esophagus, stomach, intestines, pancreas, and other digestive organs. Volvat Majorstuen offers a comprehensive and high-quality range of tests and evaluations for gastrointestinal diseases. Patients with stomach pains can receive evaluations and tests from a doctor, which can confirm or rule out diseases of the digestive tract, including colon cancer. Desmond O'Leary, located at Trondheimsveien 184 in Oslo, is a public contract gastroenterologist and internist. This clinic has short wait times for most tests and performs all expected procedures for a modern specialist clinic. Inflammatory bowel diseases and constipation are treated by a lung specialist, and patients are only accepted with a referral from a doctor or hospital. Kanalspesialistene is a clinic for gastrointestinal diseases, which only accepts patients with a referral. They have experienced specialists who can diagnose and treat a range of conditions in the digestive system. Severe gastrointestinal diseases and rare conditions are treated by a specialist at a hospital, and a gastroenterologist is a doctor specializing in these diseases.