A gold color metal and enamel device 1 1/8 inches (2.86 cm) in height overall consisting of a gold Staff of Aesculapius, the staff with entwined serpent simulating the letter "P," and the top extending over and in front of a maroon disc encircled by a blue band bearing thirteen white stars, the base of the staff extending behind the band and over an outer encircling gold scroll terminating on each side of the serpent at the top inscribed "PATIENCE" on the left, "FIDELITY" in the right in maroon letters.
Maroon and white are the colors used for the Army Medical Department. The Staff of Aesculapius is associated with the art of medicine and connotes the Hospital's mission. The color blue signifies the loyalty, zeal and devotion of the Hospital personnel. The thirteen white stars allude to the thirteen original colonies and refer to the devotion displayed by George Washington and his men at Valley Forge, for which the Hospital is named. The simulated "P" formed by the serpent upon the vertical staff further alludes to Phoenixville, Pennsylvania, where the Hospital is located.
The distinctive unit insignia was approved on 10 December 1969.