To view the calendar of a user that has been moved to Inactive

1.  Go to Setup and select Provider/Staff
2. Make sure the Status is set to Active
3.  Go to the Calendar and select the Settings button
4.  Set the option Show inactive users with active Provider to True
5.  Set the option Selected Provider on calendar to True
6.  Select the Provider's name in the list - see screenshot

7.  Click Save at the bottom
8.  Select the Provider drop down box and verify you are able to select the Provider's name and view their calendar - see screenshot