From a command line type "nbtstat -a ipaddress" without quotes.

Code:
H:\>nbtstat -a 10.10.100.3
Local Area Connection:
Node IpAddress: [10.10.100.3] Scope Id: []
           NetBIOS Remote Machine Name Table
       Name               Type         Status
    ---------------------------------------------
    ComputerName        <00>  UNIQUE      Registered
    DomainName           <00>  GROUP       Registered
    ComputerName        <20>  UNIQUE      Registered
    DomainName           <1E>  GROUP       Registered
 
    MAC Address = 00-26-B9-CE-8C-26