In House M.D., what is the title of the department led by Gregory House?

Gregory House leads the Department of Diagnostic Medicine in House M.D. The department investigates patients whose symptoms have not been explained by more routine medical evaluations.

House’s team functions as a diagnostic unit: its doctors collect histories, develop differential diagnoses, order tests, and revise their conclusions when evidence contradicts them. The department’s cases allow the series to combine medical science with a mystery structure, while House’s leadership creates ethical and interpersonal conflict.

House is also described as having expertise in nephrology and infectious disease, which can make the department’s name easy to confuse with a conventional clinical specialty. Diagnostic Medicine is the department title used for his hospital service. The show’s fictional hospital is Princeton-Plainsboro Teaching Hospital, where Cuddy administers the institution and Wilson, Foreman, Chase, and other physicians work in distinct specialties.