Jim/Sam is in the stairwell talking on the phone to Melinda, and just as they are wrapping up, another doctor says, "Dr. Clancy, got a minute?" No one knows he is Jim Clancy. Everyone sees and knows him as Sam Lucas.
When the Ghost Surgeon is operating, a Heart Monitor with red LED displays is seen. The date of the Surgeons death is found out to be 1959. The first practical LED however was invented by Nick Holonyak, Jr., in 1962.