I believe this is a collection agency as they act like one.

I too have received calls from this number from time to time. They have never left a message until today when the man on the phone (who was typing on the computer) mumbled loud enough to be heard that I was a "[***] who won't answer her phone." and then he hung up. This call was placed at 8:04 am. I'm on summer vacation and I turn my phone off at night so my sleep is not disturbed.

They have been calling for a couple of weeks now, unfortunately they have the wrong number.  I called them back today and told them - they said they would remove the number from their system.

I talked with the lady on the other end of the phone, they are a Collection Agency.  I told them my delema that the people who sicked them on me actually don't have a case.  This is a case of, the doctor didn't get pre cert for the equipment they gave me and now they want to charge me for the equipment.  I have copies of all insurance papers that say, I'm not responsable and that they didn't file properly.  She said she wouldn't call me again and to please talk with her boss and explain it all to him.  I talked with him and he was very intimidating and not understanding at all.  Then the threats about what they were going to do to me IF I didn't pay what they want.  I told them they could take me to court or accept the $5.00 a month I am offering them.

George Brown Associates.  Charlotte Based Medical/Insurance collections agency.
George Brown & Associates
2200 Crownpoint Executive Drive
Charlotte, North Carolina 28227
Phone (704) 844-8777
Toll Free (800) 432-8338

Licensed with the NC Department of Insurance: Permit #117

So, find a pay phone and start calling their 1-800 number.