800-952-7311 Caller ID as "Not Provided"
This number has called twice now, each one three hours apart, and although not selected as a blocked number by my house phone base unit, only lets the phone ring once. The number doesn't show up on a white pages inquiry. Likely a bogus call?

I have sent them payment and they continue to call.  

Calls frequently and never leaves a message

Alamance Regional Medical Accounting. Trying to collect a bill.