I received a call earlier today from the IRS PTIN office.  Says they are in KC.  816-448-2116.

They did have my name.  Called both my land line and cell.  Had an american accent, so not the typical IRS scammer call

They haven't contacted me by mail first.  They didn't mention what it was about

i did return the call and left a voice mail.  Just my name and number, which they already had