|Out of universe information|
This unnamed doctor was a member of the Atlantis expedition. In 2007, he was treating Ronon Dex in the infirmary after Asuran Stargate satellite's beam had hit the city. He was trying to remove large peace of glass from Ronon's chest safely, but his hesitation displeased Ronon. Later, he was explaining to Ronon about Dr. Elizabeth Weir's condition.
As one of the men who possessed the Ancient Technology Activation gene he then participated in clearing a path for Atlantis from approaching asteroids. He said that had only flown a Puddle Jumper twice before that. (SGA: "Adrift")