We all know that the information in most provider profiles is often a bit sketchy. Sometimes that can be from the person initially creating the review just copying was was in the ad or just not having a clue. Other times that can be due to changes over time.

Every file on my computer has a Creation Date and a Modified Date.  It seems that it would be fairly easy to have the Profile Web Page also display that info. It's a matter of juggling the layout and where to put those data fields.  
.
To be on the safe side, Creation Date could be copied the first time into as a permanent entry.  That way, if the entire database ever had to be reloaded and new creation dates created, the "original" date would still be stored as a static entry.