I would think so. You could google for projects that use it.
I can't see any schematic of the whole circuit - just a block diagram of the IC, I think it is cheap enough that you could get it, look at the traces, measure the resistors and compare against what it says in the data sheets.
The ErgoDone keyboard uses a ATMega32u4 (Arduino Pro Micro instead of Teensy) for one hand and a MCP23017 for the other - and it also uses has two resistors. (Looks like red-red-black (220 Ohm) but I am not sure)
If that would not work for you, I do have a spare MCP23018 but I can't match that price even for just postage to Morocco.