Tex. Health and Safety Code § 254.157

(a) A facility may not advertise or hold itself out as a network provider, including by stating that the facility "takes" or "accepts" any insurer, health maintenance organization, health benefit plan, or health benefit plan network, unless the facility is a network provider of a health benefit plan issuer.

(b) A facility may not post the name or logo of a health benefit plan issuer in any signage or marketing materials if the facility is an out-of-network provider for all of the issuer's health benefit plans.

(c) A violation of this section is a false, misleading, or deceptive act or practice under Subchapter E, Chapter 17, Business & Commerce Code, and is actionable under that subchapter.