What medical specialty does Dr. House lead in House M.D.?

Dr. House leads diagnostic medicine in House M.D.

House heads the Department of Diagnostic Medicine at Princeton-Plainsboro Teaching Hospital. His team investigates cases that remain unexplained after ordinary tests and consultations, often combining clues from different organ systems or specialties.

Diagnostic medicine in the series functions as a broad problem-solving discipline rather than a single routine procedure. House and his fellows use laboratory tests, imaging, patient histories, observation, and sometimes risky interventions to narrow the possibilities.

Viewers may confuse House’s department with a specialty such as infectious disease or neurology because individual episodes often focus on those fields. House’s role is broader: he is a diagnostician who integrates information across medicine. The department’s unusual cases are the narrative engine of the show.