The Medical department maintains ship wide health of the crew. It utilizes Sickbay, the EMH (Emergency Medical Hologram), and medical instruments in order to ensure the wellness crew's physical condition. This department is also in charge of overseeing medicinal allocations and medical advances in surgical procedures. This Department also has Nurses trained in minor Counseling to assist in on-the-fly needs, but due to the size of the Galaxy, the majority of Counselling personnel fall under their own offices.

The Chief Medical Officer is responsible for the physical health of the entire crew, but does more than patch up injured crew members. His/her function is to ensure that they do not get sick or injured to begin with, and to this end monitors their health and conditioning with regular check ups. If necessary, the Chief Medical Officer can remove anyone from duty, even a commanding officer. Besides this s/he is available to provide medical advice to any individual who requests it. Additionally the Chief is also responsible for all aspect of the medical deck, such as the Medical labs, Surgical sweats and Dentistry's. S/he also is a department head and a member of the Senior Staff and responsible for all the crew members in her/his department and duty rosters.

A starship or facility has numerous personnel aboard, and thus the Chief Medical Officer cannot be expect to do all the work required. The Asst. Chief Medical Officer assists Chief in all areas, such as administration, and application of medical care.

The Chief Surgeon oversees all Surgical procedures on the USS Galaxy. He/she creates duty rosters for surgeons under him/her, and oversees training of all Surgeons in new techniques. Must be on call at all times for emergencies. The Chief Surgeon reports to the CMO.

Medical Officers undertake the majority of the work aboard the ship/facility, examining the crew, and administering medical care under the instruction of the Chief Medical Officer and Asst. Chief. Medical Officers also run the other Medical areas not directly overseen by the Chief Medical Officer.

The Head Nurse oversees all the Nurses currently aboard, ensuring they are assigned to task and working as required in there area. Additionally the Head nurse performs the normal duties of the nurse, assisting the Duty Medical Officer in sickbay.

Nurses are trained in basic medical care, and are capable of dealing with less serious medical cases. In more serious matters the nurse assist the medical officer in the examination and administration of medical care, be this injecting required drugs, or simply assuring the injured party that they will be ok. The Nurses also maintain the medical wards, overseeing the patients and ensuring they are receiving medication and care as instructed by the Medical Officer.

Two EMH programs are currently available, the longer term Mark II and the short term Mark I. Both are developed to act as the Chief Medical Officer when required, and can also be activated to provide additional assistance to the real Chief Medical Officer. The EMH is programmed with all current medical knowledge and has the ability to learn as required. Additionally the EMH can take on any other medical role as required by the Medical Officer. The EMH reports to any officer present.

The Physician's Mate trains and supervises Medical crewmen in departmental operations, repairs, and protocols; maintains duty assignments for all Medical personnel; leads triage and emergency medical efforts when necessary; co-ordinates all personnel cross-trained in emergency medical operations; and is qualified to temporarily act as Chief Medical Officer (except where surgical procedures must be performed) if so ordered. The Physician's Mate reports to any Medical Officer on duty.