07/22/2016 UPDATE: Dr. Carl Ferguson has been removed from ZocDoc.
I received a call from ZocDoc asking about my review. After a short inquiry the ZocDoc representative said word-for-word "Whoa, that doesn't sound right. I'm going to look into this."
There are plenty of honest, intelligent, and compassionate DO's and MD's in the valley. Just do your due diligence whilst researching to avoid unsavory encounters.