These guys have been calling me, say I owe some money, I do not owe any one any money.
Funny thing is they want to know your DOB and address at the very beginning, if they are collecting debt they should know that already..
they have promised to mail a hard copy of the debt, lets wait and see what happens.

but going from experience posted here, I suspect it is just a scam..

They call everyday and leave message. When i call to find out what this is regarding they tell me debt owed. They want credit card information but willn't give me any info on them. I truly believe this is a scam of some kind and would like to report them.

This is a scam. The idiots called me claiming I wrote a bad check at a hospital . I'd like to tell this dingbat I have insurance. I don't write checks Cannot even say my name correctly . She said her name was Michelle. Dah Dah

I called this number back on a landline and it just rang forever no one picked up. Who does that?

Called, left message. Debt Collector. CMRE Financial Services .
Left a message telling me they wanted discuss an urgent matter on behalf of Gr******t Medical Center. Left a call back number of 866-283-3786. This is a company who collects outstanding emergency room hospital debts.