The Proficient Service Medallion was a medal awarded for proficient service by an officer in an service organization. Such a medallion was known to be issued by both Starfleet and the Cardassian military.

Sometime during his Starfleet service in the mid-23rd century, Christopher Pike was awarded this medal. It, along with other awards, was listed in the commendations section of Pike's personnel file. (DIS: "Brother")

Gul Darhe'el received the Proficient Service Medallion prior to 2357. (DS9: "Duet")

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