FIELD 25- Federal Tax ID Number
The “Federal Tax ID Number” is the unique identifier assigned by a federal or state agency.
NUCC INSTRUCTIONS: Enter the “Federal Tax ID Number” (employer ID number or SSN) of the Billing Provider identified in Item Number 33. This is the tax ID number intended to be used for 1099 reporting purposes. Enter an X in the appropriate box to indicate which number is being reported. Only one box can be marked.
Do not enter hyphens with numbers. Enter numbers left justified in the field.
MEDICARE INSTRUCTIONS: Enter the provider of service or supplier Federal Tax ID (Employer Identification Number or Social Security Number) and check the appropriate check box. Medicare providers are not required to complete this item for crossover purposes since the Medicare contractor will retrieve the tax identification information from their internal provider file for inclusion on the COB outbound claim. However, tax identification information is used in the determination of accurate National Provider Identifier reimbursement. Reimbursement of claims submitted without tax identification information will/may be delayed.
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