This chapter does not apply to:
(1) the activities, within the scope of a person's employment, of a person employed to perform marriage and family therapy by a federal, state, county, or municipal agency or, except as provided by Section 21.003(b), Education Code, by a public or private educational institution;
(2) the activities of a student, intern, or trainee in marriage and family therapy in a recognized course of study in marriage and family therapy at an accredited institution of higher education or other training institution, if:
(A) the activities constitute a part of the course of study; and
(B) the person is called a "marriage and family therapist intern" or similar title;
(3) the activities and services of a person licensed to practice another profession, including a physician, attorney, registered nurse, occupational therapist, psychologist, social worker, or licensed professional counselor; or
(4) the activities and services of a recognized religious practitioner, including a pastoral counselor or Christian Science practitioner recognized by the Church of Christ Scientist as registered and published in the Christian Science Journal, if the practitioner practices marriage and family therapy in a manner consistent with the laws of this state.