Philip Boyce was the chief medical officer on board the USS Enterprise in 2254, under the command of Captain Christopher Pike .
Boyce was an acerbic realist who did not hesitate to tell Captain Pike when he thought Pike was wrong. He was known to carry a portable martini kit with him, reasoning that, "sometimes a man will tell his bartender things he'll never tell his doctor." In this capacity, Boyce counseled Pike to remain in the service when Pike confided in him that he was considering retiring. Boyce realized that Pike's sentiment was stemming from a recent incident on Rigel VII in which three Enterprise crewmembers, including Pike's yeoman, were killed, an incident on which Pike blamed his own complacency.
Boyce was a member of the landing party investigating the apparent existence of survivors of a crashed survey expedition on planet Talos IV, reporting to Pike on the extraordinary health of the survivors despite supposedly being stranded for eighteen years. Later, when it became clear that the existence of survivors was an illusion created by the Talosians for the purpose of abducting Pike, Boyce participated in a staff briefing, cautioning the crew as to the dangers posed by the Talosians' mental powers.