(a) Except as provided by Subsection (b), this subchapter applies to a health maintenance organization authorized to engage in the business of a health maintenance organization in this state or an insurer authorized to engage in the business of insurance in this state, including:
(1) a capital stock insurance company;
(2) a mutual insurance company;
(3) a title insurance company;
(4) a fraternal benefit society;
(5) a local mutual aid association;
(6) a statewide mutual assessment company;
(7) a county mutual insurance company;
(8) a Lloyd's plan;
(9) a reciprocal or interinsurance exchange;
(10) a stipulated premium company;
(11) a group hospital service corporation; and
(12) a risk retention group.
(b) This subchapter does not apply to a health maintenance organization or insurer:
(1) that has gross initial premium receipts collected in this state of less than $2 million each year; or
(2) with regard to fidelity, surety, or guaranty bonds.