I am wondering how this are was built? Is this a custom app or something using pages or does this "Providers" app exist somewhere? I need something very very similar and wondering if it's custom,

This is a simple pages database with a customized listing and display template 

17 hours ago, Daniel F said:

This is a simple pages database with a customized listing and display template 

Thanks for you reply. Is this how the reviews work as well? 

1 hour ago, Meowcious said:

Thanks for you reply. Is this how the reviews work as well? 

Yes, page records can have comments and reviews out of the box.