Frequently Asked Questions

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What is an IRS Form CP 575?

The IRS Form CP 575 is an Internal Revenue Service generated letter you receive from the IRS granting your Employer Identification Number (EIN) linking it with your legal business name (LBN). A copy of your CP 575 may be required by the Medicare contractor to verify the provider or supplier’s EIN and LBN.  Any other IRS document showing the provider or supplier's EIN and LBN is also acceptable for enrollment purposes.

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