I just had 2 calls from this number while asleep. I looked the number up on the internet and forund this site. I called the number and it did sound like a fax machine. Since my Dr. is with Mercy I call her and found out its a Mercy Health billing department out of St. Louis, MO.
I owed $4.00 :)
Oh! Judging by the other posts I would gather that this number is a multi-use number. Also for those who may not know St. Johns changed their name to Mercy no long ago.