(a) Except as provided in subsection (c) of this section, a physician shall evaluate a permanent impairment and report the evaluation to the Commission in accordance with the regulations of the Commission.

(b) A medical evaluation of a permanent impairment shall include information about:

(1) atrophy;

(2) pain;

(3) weakness; and

(4) loss of endurance, function, and range of motion.

(c) If a permanent impairment involves a behavioral or mental disorder, a licensed psychologist or qualified physician shall:

(1) perform an evaluation of only the mental or behavioral portion of the permanent impairment; and

(2) report the evaluation to the Commission in accordance with the regulations of the Commission.