Definitely Caremark - they called to verify delivery of mail order prescription.  Did have to provide some identifying info which made me a little nervous, DOB and address, name of drug.  I decided to call the # back and got a Caremark greeting with an address that matched an internet lookup for the #.  i then called the toll free # for Caremark and confirmed they had notes related to the previous call.  Take the call

Yup, definitely Caremark...I just received a call I definitely wanted to take, to sort out my pending mail order prescriptions. If you deal with them, take the call. :)

This is Caremark/CVS' mail-order prescription service.

this woman calls from this number on my cell number and have portion of my name but not all and wanted me to spell out my full name, which i refused and told her you got the wrong number.. eventually she hung up.  I have rec. missed call from the same number in the past.