Keeps calling and never saying anything.

keeping on calling me for no reasons

Just started calling today out of the blue. Does not leave message and also, must have my number on a call schedule because, they call once a hour and one time called me back with in a minute  and only let it ring 2 times and hung up. Thinking maybe it is a teller marketer.

It's Prime Financial - They do billing for Methodist Hospital's.

Repeated calls.  No outstanding balances or payments due.