There are many types of licensed mental health professionals, differing in educational backgrounds, training, licensure, philosophy, and technique.
Psychiatrists are medical doctors and can prescribe medication.
Very few psychiatrists also provide psychotherapy but usually refer to and work in conjunction with other psychotherapists. Psychologists usually have a Doctorate in Psychology and have completed an internship under supervision. Counselors usually have a Master's degree in Counseling and have completed an internship under supervision. Clinical Social Workers typically have a Master's degree in Social Work and have completed a supervised internship. Other types of licensed professionals include Marriage and Family Counselors and Chemical Dependency Counselors.