It's the Walgreen's Pharmacy message retrieval center apparently.

Doesn't do any good to call it back either, it told me that my number couldn't be dialed or my message had expired.

I do not know this number.  can you pls find out.

Got a call from 847-374-8205. It's Walgreen's message retrieval center. My phone number is not in their system or "expired".  They have some problems, it appears.  My daughter receives calls regularly from Walgreen's telling her that her perscription is ready.  She's 10yr old, and never has a prescription ordered w/them.