With respect to a medical malpractice action, a hospital which does not request information respecting a physician or practitioner as required under subsection (a) is presumed to have knowledge of any information reported under this subchapter to the Secretary with respect to the physician or practitioner.
42 U.S. Code § 11135. Duty of hospitals to obtain information
(a) In generalIt 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)— 
A hospital may request such information at other times.
(b) Failure to obtain information
(c) Reliance on information provided
 So in original. The closing parenthesis probably should not appear.