My husbands ex-employer sent a 1099 to the IRS for the tax year 2009. He did not work there in 2009. I was told by IRS that ex-employer has to send a corrected 1099 to us so I can submit it to IRS with another document that IRS sent us. He says it doesn't work that way. How exactly does this work? I know he did something crooked because other ex-employess are having the same problem and ex-employer says he doesn't want to send corrected 1099 because he doesn't want IRS to "investigate". Thank you.

Who says it doesn't work that way? It certainly does. Tell him that you all know about each other, and the sooner he sends out the corrected forms, the less hot water he will be in. He's in trouble either way.
If he doesn't, you all have to band together to notify the IRS, preferably in one envelope or one visit in person to the nearest office. Give him a deadline.
What a loser. He thinks he can save on his taxes by making all of you pay taxes on non-existent income, and you won't notice or care?

Tell him if he does not correct the 1099 you are going to file a petition with the Tax Court and he can explain to the judge how he computed the amount on the 1099. That will usually get their attention.

Thanks so much you two. I will certainly do both if the other doesn't work.