This is easier than you can think, you just need to know the correct name of the control panel application.
The control panel applications are typically files with a
.CPL extension in the Windows directory.
There are far too many of them, and they can vary depending on what is installed.
Wikipedia has a nice list of the official Windows ones and many of the bigger third part applcations.
In order to find them all, you can go to the command prompt and make sure to be in the root of the system drive and type
dir *.cpl /s
This will list all the control panel files on your machine.
So to run the Nvidia control panel, according to the Wikipedia link, you would type
nvidia.cpl as long as the location of the file is pathed. (I cannot test this as I only have ATI cards here at the moment)