It's been done. Go light on the details.
What city? New York, don't name the borough or neighborhood.
What company? It's in sales, and we have a global network of offices.
Phone? Keep the current cell phone number, and tell him that you're keeping it for a year. Feel free to change when necessary.
If he asks you for your new address? Tell him you'll send it to him.
If he asks you for your new address? Tell him you'll send it to him.
The alternative? Get stalked, and become a grim statistic if he's out of his mother freak-out mind.