I have created 4 so far for 4 different doctors and yes whom ever you have doing your SEO loves it because it helps with SEO and adds full interactions with prospective clients. Great way to interact with them and get them communicating with you. 

So here is the biggest answer to most of the questions. If you want I can give you the references of a Doc outside of your area that we are already doing it with. Will not show you someone in your area. 

 Cost is $600 if your a current client 

 $900 if your not a current client.