10 U.S.C. § 722
A general officer serving as Attending Physician to the Congress, while so serving, holds the grade of major general. A flag officer serving as Attending Physician to the Congress, while so serving, holds the grade of rear admiral.
(Added Pub. L. 109–364, div. A, title V, § 507(a)(1)(A), , 120 Stat. 2180.)