(a) A person is not required to obtain a certificate of authority under this chapter to the extent that the person is:
(1) a physician engaged in the delivery of medical care; or
(2) a provider engaged in the delivery of health care services other than medical care as part of a health maintenance organization delivery network.
(b) Except as provided by Section 843.101 or 843.318(a), a physician or provider that employs or enters into a contractual arrangement with a provider or group of providers to provide basic or limited health care services or a single health care service is subject to this chapter and the following provisions and is required to obtain a certificate of authority under this chapter:
(1) Section 1367.053;
(2) Subchapter A, Chapter 1452;
(3) Subchapter B, Chapter 1507;
(4) Chapters 222, 251, and 258, as applicable to a health maintenance organization; and
(5) Chapters 1271 and 1272.