In House, M.D., what fictional medical department does Gregory House head?

Gregory House heads the fictional Department of Diagnostic Medicine in House, M.D. The department investigates difficult cases that other physicians have been unable to diagnose.

House’s team approaches illness as a process of elimination, combining medical history, tests, imaging, and sometimes risky treatments. The department’s unusual cases provide the structure for many episodes, while House’s leadership style creates conflict with colleagues and hospital administrators. In real hospitals, diagnostic medicine can overlap with several specialties rather than functioning exactly as the show depicts it.

The department’s membership changes repeatedly over the series. Early fellows include Allison Cameron, Robert Chase, and Eric Foreman, while later seasons introduce different doctors. This makes Diagnostic Medicine a more reliable answer than naming a particular team member. House’s specialty is also distinct from the hospital’s separate departments, such as oncology and neurology.