It takes a few tries, but he eventually gets connected to the right person and explains the situation. Fox Mulder - yes, like the animal - I think I'm probably still her emergency contact? What's happened is... He sounds suitably concerned, he thinks, and the woman on the other end seems relieved to know just where Scully's disappeared to.

"Same address," he's saying, when the young Scully comes into the room. "The one in Farrs Corner. If you send the paperwork there, I can make sure she gets it. Yes - thank you - goodbye -"

Once he hangs up, he looks up at Scully. "The hospital is, too. Now all that's left is figuring out what happened."