This number has called me numerous times while I was at work. When they called me recently I could answer, they claim to be a collection agency for a hospital I went to. And somehow I owe them money. I did not receive a bill for the amount they claim. They said it was mailed but it was returned due to a faulty address. They told me I could pay the balance now for free. (You can pay any bill for free). And they wanted a credit card. Collection agencies dont typically want credit cards... Then when I said I wanted a bill, she said my credit would be affected if i dont pay it. They didnt even verify that I was me.  I hung up. My father then called the number and spoke to some women. She then told him what I owe, the hospital I want to, and some other information that they shouldnt have. Then my father told them this was a scam and she proceeded to yell at him hysterically. What is this?