This chapter does not apply to:
(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.