Why on earth do you personally need to log your cases?
Whomever is doing your billing should be able to produce a list for you of all the cases you did including the procedures (via CPT codes) if you need it. I still don't understand why you would need this. Once you're credentialed initially it will be unlikely that there will be an issue that comes up when you're re-credentialed, unless you ask for some new procedure, etc.
You're an attending now. Relax a little. 😉