What medical specialties does Gregory House head in House M.D.?

Gregory House heads the Department of Diagnostic Medicine in House M.D.

The department investigates unusual cases that other doctors have been unable to diagnose. House leads a changing group of physicians who test hypotheses, interpret symptoms, and use specialist consultations to identify the underlying illness.

Diagnostic medicine is the series’ fictionalized engine: each episode presents a patient whose symptoms may reflect infection, autoimmune disease, poisoning, cancer, or another uncommon condition. The team’s work often combines history-taking, imaging, laboratory testing, and treatment response.

House is also described as having expertise in infectious disease and nephrology. Those specialties explain some of his medical knowledge, but they are not the name of the department he leads. The department title is specifically Diagnostic Medicine.