Tex. Occupations Code § 168.201

(a) The owner or operator of a pain management clinic, an employee of the clinic, or a person with whom a clinic contracts for services may not:

(1) have been denied, by any jurisdiction, a license under which the person may prescribe, dispense, administer, supply, or sell a controlled substance;

(2) have held a license issued by any jurisdiction, under which the person may prescribe, dispense, administer, supply, or sell a controlled substance, that has been restricted; or

(3) have been subject to disciplinary action by any licensing entity for conduct that was a result of inappropriately prescribing, dispensing, administering, supplying, or selling a controlled substance.

(a-1) For the purposes of this section, inappropriate prescribing includes nontherapeutic prescribing or other conduct as specified by board rule.

(b) A pain management clinic may not be owned wholly or partly by a person who has been convicted of, pled nolo contendere to, or received deferred adjudication for:

(1) an offense that constitutes a felony; or

(2) an offense that constitutes a misdemeanor, the facts of which relate to the distribution of illegal prescription drugs or a controlled substance as defined by Section 551.003(11).

(c) The owner or operator of a pain management clinic shall:

(1) be on-site at the clinic at least 33 percent of the clinic's total number of operating hours; and

(2) review at least 33 percent of the total number of patient files of the clinic, including the patient files of a clinic employee or contractor to whom authority for patient care has been delegated by the clinic.

(d) A person who owns or operates a pain management clinic is engaged in the practice of medicine. This shall include, but is not limited to, all supervision and delegation activities related to the pain management clinic.