Cisco IP Phones and SNMP

I'd like to retrieve the information contained in the "Device Information" Web page of our phones and ATA devices. Is this retained in a database someplace? Is this something I can retrieve using SNMP? I'm specifically looking for the following fields:

MAC Address Phone DN Serial Number Model Number

I see nothing in the documentation that relates to SNMP on the phones or ATA devices. I'd like to build a spreadsheet or database to help with SmartNet...

Thanks in advance, Jeff...