Sawbones (Fallout 3)

Sawbones is a Mr. Gutsy working as a doctor in The Citadel. He can be found in the B-Ring and offers the same services that all the other wasteland doctors offer.

His terminal, which requires 100 Science to hack, contains a poem of his composition. It also appears that Paladin Glade has hacked his terminal before, and wants Sawbones to change his password.

Unmarked quest: Worst. Doctor. Ever
When you first interact with him, you can ask to be healed, in which he malfunctions and ends up hurting your player character.

Trivia

 * "Sawbones" is a historical slang term for a surgeon, dating back to the early 19th century.
 * Sawbones is a reference to the Emergency Medical Hologram from the Federation starship USS Voyager, seen in the TV show Star Trek Voyager. It exhibits similar behaviour and when first encountered it greets the Lone Wanderer with "Please state the nature of the medical emergency," the line delivered by all versions of the Star Trek EMH upon activation.