Texas Occupations Code - OCC § 168.002. Exemptions

(1) a medical or dental school or an outpatient clinic associated with a medical or dental school;

(2) a hospital, including any outpatient facility or clinic of a hospital;

(3) a hospice established under 40 T.A.C. Section 97.403 or defined by 42 C.F.R. Section 418.3;

(4) a facility maintained or operated by this state;

(5) a clinic maintained or operated by the United States;

(6) a health organization certified by the board under Section 162.001; or

(7) a clinic owned or operated by a physician who treats patients within the physician's area of specialty and who personally uses other forms of treatment, including surgery, with the issuance of a prescription for a majority of the patients.