(1) In the case of an Under Secretary for Health who is also a physician or dentist, in addition to the base pay specified in subsection (a) the Under Secretary for Health may also be paid the market pay element of pay of physicians and dentists under section 7431 (c) of this title.

(2) The amount of market pay of the Under Secretary for Health under this subsection shall be established by the Secretary.

(3) In establishing the amount of market pay of the Under Secretary for Health under this subsection, the Secretary shall utilize an appropriate health care labor market selected by the Secretary for purposes of this subsection.