I've received multiple calls from Greenburg PA from this number stating it is the IRS. I actually spoke with someone and they told me that I owe the IRS $9,500 from 2009 due to an addition error. When I asked to speak with someone else for additional information. He told me that same information and said if I didn't pay they would call my local sheriff's office to arrest me. It is a total scam. I told him to let me know which sheriff is coming, I'll be waiting. Can you believe I received a call from them again today, after our whole conversation yesterday. I called my tax person and they said this scam has been going on for 2 years. Beware. There are people that are actually paying the total amount and then contacting their local police department to question the truth of it. People don't be stupid!