What was the name of House’s department at Princeton-Plainsboro in House M.D.?

House led the Department of Diagnostic Medicine at Princeton-Plainsboro in House M.D. The department investigates illnesses that remain unexplained after routine testing and consultation with more conventional specialties.

Its unusual structure is central to the series. House selects a small team of doctors and presents them with difficult cases, often requiring them to generate and test several competing diagnoses. The team’s work resembles medical detective fiction, but the show places the diagnostic process inside a teaching hospital.

The department is fictional, although real hospitals do have diagnostic medicine services and multidisciplinary consultation teams. House’s department is portrayed as unusually autonomous and focused on rare, complex cases. That setup explains why patients with baffling symptoms repeatedly reach him.

The doctors who work in the department change across the series. Early team members include Eric Foreman, Allison Cameron, and Robert Chase. Their specialties differ, but the department itself is Diagnostic Medicine, not neurology or infectious diseases.