Section 19-309 - Complaints(a) Notwithstanding any other provisions of this subtitle, each hospital or residential treatment center shall be open to inspections by the Department to investigate and resolve any complaint concerning patient care, safety, medical and nursing supervision, physical environment, sanitation or dietary matters.(b)(1) To resolve expeditiously a complaint that alleges the existence of any nonlife-threatening deficiency, the Department may refer the complaint directly to the hospital or residential treatment center.(2) If appropriate, issues relating to the practice of medicine or the licensure or conduct of a health professional shall be referred to the hospital or the residential treatment center and may be referred to the appropriate licensure board for resolution.(3) If the Department determines that the hospital or residential treatment center has not satisfactorily addressed the referred complaint or where the complaint alleges the existence of a life-threatening deficiency, the Department shall conduct an independent investigation.