Our office was private with a individual TIN. We are now corporate with a group TIN. This change over has been a nightmare with insurance companies. It would be great to be able to print old claims with our old TIN numbers. We are being asked my insurance companies (after they have denied claims) to provide the original claim. Now that our TIN has changed that is what prints on the claims. Even though that is not what was originally sent. Crazy that this automatically prints with the new TIN instead of what was originally sent on the claim...