Tex. Occ. Code § 564.105

All persons, including governing bodies and medical staffs of health care entities, shall comply fully with a subpoena issued by the board for documents or information as otherwise authorized by law. The disclosure of documents or information under the subpoena does not constitute a waiver of the privilege associated with a pharmacy peer review committee proceeding. Failure to comply with the subpoena is grounds for disciplinary action against the facility or individual by the appropriate licensing board.