I answered the call since it was Healthfirst, asked my name then my DOB, no way I'm giving that out. I recall Healthfirst called before and "Healthfirst" showed up on the CID. This is a scam. I punched in a random DOB like 1900.
Dirty debt collector trying to confirm your identity. Asked for me and my DOB and they know my DOB because I put in a fake one and it came back with incorrect DOB on file. Now what does that tell you?