FAA database
Any airman can request that personal information be hidden, such as the address or certificate number. To remain valid though, an airman only has 30 days to notify FAA of a change in address. I would think that a properly filed Freedom of Information request would result in FAA having to divulge the current residential on file.
This airman does not require a valid US Medical certificate as long as he is not exercising any of the privileges of his US FAA certificate.
Unless this airman took and passed an ATP practical very recently (there is a lag time to updating the FAA Airman Certificate database and the database is currently one month behind actual issuances), it is possible, but unlikely, that he holds a US FAA ATP. There are also no SIC or PIC type ratings on file, which would be required for any turbojet operations, single or multi-pilot. At the moment, the only fact that is certain is that prior to Dec 10, 2015, he did not hold an FAA ATP.