A silver color metal and enamel insignia 1 3/16 inches (3.02cm) in height consisting of a yellow demi-sun emitting yellow rays behind a cross botonny divided crosswise white and maroon and surmounted by a silver castle bearing a blue fleam, the sun and the cross issuing from a maroon scroll inscribed "YOUR HEALTH IS OUR GOAL" in silver letters.
The castle is a symbol of strength and safety; it stands for the U.S. Army Medical Activity and its major subordinate element, Kirk General Hospital. In addition, the castle, which is taken from the arms of Aberdeen, Scotland alludes to the unit's location at Aberdeen Proving Ground. The fleam is the prototype of the surgeon's lancet; it refers to Major General Norman Thomas Kirk for whom the Hospital was named. General Kirk, Surgeon General of the Army during and after World War II, was noted particularly for his distinguished achievements in the field of surgery.
The distinctive unit insignia was originally approved for the Kirk Army Hospital on 5 Dec 1969. It was redesignated on 21 Aug 1973 for the U.S. Medical Department Activity, Aberdeen Proving Grounds.