In House M.D., what is Dr. House’s medical specialty combination?

Dr. Gregory House is board-certified in infectious disease and nephrology in House M.D.

Those specialties help explain why House leads a diagnostic medicine department rather than a conventional single-specialty practice. Infectious disease concerns illnesses caused by bacteria, viruses, fungi, and parasites, while nephrology focuses on the kidneys and related conditions.

The series frequently presents House using knowledge from many fields, including neurology, immunology, toxicology, and genetics. His formal specialties are therefore sometimes confused with the broader range of medicine he practices while solving unusual cases.

House’s kidney specialization also connects to his personal medical history. He suffers lasting leg damage after an infarction in a muscle, and chronic pain contributes to his dependence on Vicodin. The show treats his expertise and his impairment as intertwined parts of the character rather than as interchangeable diagnoses.