The Chief Medical Officer (or CMO for short) also the chief surgeon of a Starfleet unit. He/she is responsible with maintaining the crew's physical and psychological health and fitness.

Duties & FunctionsEdit

The CMO is responsible for conducting routine physical examinations and special duty physicals. Other duties include to diagnose and treat any crew ailments, run emergency medical drills, train the crew in first aid, set up remote hospitals and clinics and, when possible, find cures for any new conditions encountered by the ship. Starfleet vessels are often tasked to render medical assistance to any ship, station or planet in need, and the CMO is charged with ensuring that this is done. A ship's CMO performs any needed medical procedures and any elective surgery as authorized. The CMO coordinates with the Counselor or executive officer with respect to the crew psychological well being. The CMO prescribes special diets and exercise regimens as necessary. In regards to any special environments required by any alien crewmembers or visitors, the CMO coordinates with the Operations Officer. Another task assigned to the ship's doctor is to monitor the ship's food replicators to ensure proper nutrition and safety. The doctor will often accompany away teams as new planets can harbor deadly plant and animal life.


Due to the sensitivity and responsibility of the position, the CMO is usually a Commander or a Lieutenant commander in rank. For minor starships, CMO's are of the rank of Lieutenant or Lieutenant junior grade.

Emergency SituationsEdit

In emergency situations where no other living medical doctor is found on a ship or station, the duties and responsibilities of the CMO fall on the Emergency Medical Hologram, or EMH. This was only known to have happened in two cases, both starship stranded in the Delta Quadrant: USS Voyager, and USS Equinox. Voyager's EMH was on-line for so long, that he developed a distinct personality, and was considered part of the crew.

Known Chief Medical OfficersEdit

Vanguard CommandEdit

Onboard the Invincible-class Fleet Carrier-Heavy Battleship prototype USS Invincible, the Chief Medical Officer is Captain Beverly Crusher.

External LinksEdit

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.