Check PC MAC and NETBIOS remotely using nbtstat

Type this 'nbtstat -A {ipaddress}' into the command prompt.
e.g. nbtstat -A 192.168.1.1

Or if you know the hostname, you can type 'nbtstat -a {hostname}'
e.g. nbtstat -a WorkStat123

For more info on 'nbtstat', refer to this link below
http://technet.microsoft.com/en-us/library/cc940106.aspx

Enjoy....