If you are thinking of hiring a CCIE you need to know the engineer holds a valid CCIE certification. To verify CCIE status you just need to know the engineers first and last name and their CCIE number.
You can then use the verification tool to check the current status of any CCIE.
You will need a valid cco login and then go here
Enter the information and the Cisco website will validate if the said engineer holds a valid CCIE certification.
It is very simple to check CCIE status of any engineer before hiring.