Yes.

There are multiple addresses associated with Satoshi.

The first would be the address to which the first block award, called the "genesis block", was sent to: 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa

Then there is his/her main address, which has the $900+k you mentioned. I don't know the address for that on and a quick Google search didn't help, but if you download Bitcoin Core you can scroll to the beginning of time in Bitcoin world and find the wallet addresses used for the very first transactions...one of those is owned by Satoshi.

Finally, Satoshi created this forum and has an account here...he/she may have an bitcoin address posted on their profile, check for yourself: Satoshi's Profile