Did your doberman run away? Does he look like this? If so, Arthur from the neighborhood found him, and he's safe and sound. From the rescuer:
Just a couple hours ago I let in a lost Doberman who was crying at the bottom of my stoop in the cold. He's got a collar but no tags and had a little orange and gray fleece vest on. He knows some simple commands, sit, stay, give, etc. He's a fixed, nicely behaved, cold and hungry galoot.
If this is your pooch, contact me and I'll put you in touch with Arthur. You can also let him know directly via Brooklynian.