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Electronic File Interchange (EFI) Home Page

The Electronic File Interchange process, or EFI, enables an organization that is approved by CMS as an EFI Organization(EFIO) to submit provider NPI application and update information electronically to NPPES, with minimal manual intervention. To perform this function, an organization must first register with the NPI Enumerator. A copy of the certification statement is available below.

Representatives for an EFIO may log in to create a User ID and password, submit and review files, manage EFI accounts, and check the EFI status of each uploaded file.

New representatives are notified by the NPI Enumerator when their accounts have been approved and activated.

Upon successful file uploads, NPPES notifies the representative(s) that the file has completed processing. File names are designated by the EFIO prior to upload, and a unique file identifier, assigned by NPPES, is to be provided for each uploaded file. Note: A notification is sent for any files that cannot be processed.

Additional Resources:

Please see the revised EFI documentation below (revision date 8/10/08). EFIOs are responsible for updating their EFI XML Schema utilizing the information provided in the documents listed below. Failure to do so could cause the uploaded EFI Files to either be rejected or not be processed correctly.

Note: To view PDF files, you must have Adobe Acrobat Reader. If you do not already have Acrobat Reader installed, please Download Acrobat Reader now. Get Adobe Acrobat

Need Assistance? Contact the NPI Enumerator with any questions you may have concerning file uploads or file status:

By phone:
1-800-465-3203 (NPI Toll-Free)
1-800-692-2326 (NPI TTY)
By e-mail: