Division 14, also known as D-14, was a specialized Starfleet division that handled mysterious science- or medical-related problems afflicting its personnel.
Division 14 maintained a spa on Endicronimas V known as "The Farm" to give the best care possible to its patients. The Osler was used to transport patients to the facility.
In 2380, one such patient was Ensign Brad Boimler of the USS Cerritos, who was out of phase after a transporter accident. Once he arrived on Endicronimas V, his condition wore off before needing any treatment. (LD: "Much Ado About Boimler")