I discovered a fun game to test note identification. This is an on-line game - great for your computer lab, regular lessons or an assignment for students at home. Students match the note on the staff to a one octave keyboard by simply clicking the correct key as the notes on the staff scroll by. Points continue to add up if they correctly identify the note and click the correct key before the note on the staff drops off the screen. It also automatically continues up a level as the student continually gives correct answers. The game ends when too many of the notes on the staff drop off the screen - I believe they can get 4-5 wrong before it ends.
This looks like a great resource and another option to drill those notes on the staff. It also incorporates sharps and flats as the levels increase so this is a good way to improve quick recognition of those half steps. The only downside for me was that the keyboard is only one octave and the staff uses the full range of both treble and bass so the topography of a full range piano isn't an option, but I think if your student is experienced enough, this game is still a viable tool in your studio.
Give it a try and see if it might be helpful. Do you have other free on-line games you use in your studio? I would love to hear what works for your students.