How on earth will a doorman be able to distinguish between an escort and someone who's coming to give you an estimate on new kitchen counters?
For entry system buildings, you can normally just have the management put any name you want on the display. Or, if super concerned just tell your guest that the system is on the fritz and to please text you when they're close and you'll meet them in the lobby to let them in. Job done.
What's awkward is when you're visiting an escort at their place that has a door person who calls up to announce you. The Escort will need to give you their real name for the door attendant to find you on the call list. You can get along with asking "tell him Spider is here."