(a) The board, at any time and without notice during regular business hours, may:
(1) enter and inspect a facility operated by a person engaged in any activity regulated under this chapter; and
(2) to the extent allowed by federal law, inspect and review any record, including a patient record, maintained by a person engaged in any activity regulated under this chapter.
(b) The board may enter and inspect a facility or inspect and review any record under Subsection (a) as necessary to:
(1) ensure compliance with this chapter; or
(2) investigate a complaint made to the board.