Called the number back and it says "You have reached the Doctors Group" and gives instructions on how to be added to their do not call list.

I live in the Dallas area and have recieved one call from this number.  I did not answer but my caller ID displayed "Doctors Group."

I just got a phone call from the "Dr. Group" at 9:04am this morning. Why do they call us, I hate calls that don't leave voicemails.

I never know this is at all!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Received  a call from this number. Caller ID indicated "Doctors Group". I did not answer and they left no message. We are getting calls from the "Doctors Group" every day. The most alarming thing is they come from a different number nearly every time! Here is a list of numbers they've called from in the last 2 weeks:
209-320-9672
209-320-9683
213-232-2384
213-232-2389
213-232-2392
323-372-6380
323-372-6388
408-538-5176

By the way, I live in the 631 area code (Suffolk,NY).