(a) In general It is the duty of each hospital to request from the Secretary (or the agency designated under section
11134 (b) of this title), on and after the date information is first required to be reported under section
11134 (a) of this title)
(1) at the time a physician or licensed health care practitioner applies to be on the medical staff (courtesy or otherwise) of, or for clinical privileges at, the hospital, information reported under this subchapter concerning the physician or practitioner, and
(2) once every 2 years information reported under this subchapter concerning any physician or such practitioner who is on the medical staff (courtesy or otherwise) of, or has been granted clinical privileges at, the hospital. A hospital may request such information at other times.