noun
A professional who practices psychotherapy; a relatively formal term.
彼女は精神療法家として長年働いている。
She has been working as a psychotherapist for many years.
心理療法士 is a more common term for psychotherapist, while 精神療法家 is less frequent and may sound more formal or specialized.
Compound of 精神 (mind, spirit), 療法 (therapy), and 家 (practitioner, specialist).