He had little patience for illness, which was part of what made him such an excellent doctor.

He needs good men, and at least he's an excellent doctor.

You are new here and I know an excellent doctor.

Whatever had happened to upset him, he was an excellent doctor.

He also, obviously, became an excellent doctor before returning home.

"We have an excellent doctor on call, should you wish for medical attention of any kind."

Although not many could even imagine it, he's actually an excellent doctor as well.

"I've always said that Leonard would make an excellent doctor."

Even so, he is an excellent doctor and always comes up with the right solution to the show's medical problems before anyone else.

He is an excellent doctor; probably the best in his field.