What is Niles Crane's profession?

Niles Crane's profession is psychiatrist.

Niles is the younger brother of Frasier Crane, and both brothers practice psychiatry in the series. Unlike Frasier, whose career becomes highly public through radio and television, Niles mainly works in private practice and develops a reputation as a serious clinician.

The show identifies Niles as a specialist in marriage and family therapy. His professional interests include clinical psychosis, and his academic background includes Yale and the University of Cambridge. He also describes himself as a Jungian, contrasting his approach with Frasier's Freudian orientation.

A common mix-up is confusing Niles with a physician in another specialty. The answer is not cardiologist or attorney: Niles is a medical doctor whose fictional career centers on psychiatric treatment. His formal title, Dr. Niles Crane, reflects that profession, while many of the show's jokes come from the contrast between his professional expertise and his anxious, obsessive personal life.