What goes in box 25 when completing a CMS-1500 claim form?

What goes in box 25 when completing a CMS-1500 claim form?

In Box 25 of the CMS-1500 claim form, you should enter the billing provider's federal tax ID number (either Social Security Number or Employer Identification Number). This number is used to identify the provider for tax and billing purposes.

 

You must mark the appropriate box to the right to indicate whether you've entered an SSN or an EIN.