(a) This chapter does not apply to an entity that:
(1) provides medical alert services for persons who are sick or disabled;
(2) does not provide any other service that requires a license under this chapter; and
(3) is:
(A) a hospital or a wholly owned subsidiary or an affiliate of a hospital licensed under Chapter 241, Health and Safety Code; or
(B) a charitable or a nonprofit entity that provides the services in the manner required by Subsection (b) and that is exempt from the payment of federal income taxes under Section 501(a) of the Internal Revenue Code of 1986 and its subsequent amendments by being listed as an exempt entity under Section 501(c)(3) of that code.
(b) A charitable or nonprofit entity that provides medical alert services must provide those services through a licensed person, licensed nurse, licensed physician assistant or by a hospital, subsidiary, or affiliate described by Subsection (a)(3)(A).