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CP-575 Letter: What It Is, Why It’s Required, and How to Get One
NPI Confirmation Letter
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NPI Confirmation Letter

Robb Duke
Last edited 14 hours ago by Robb Duke

What is an NPI Confirmation Letter?

An NPI Confirmation Letter is an official document from the National Plan and Provider Enumeration System (NPPES) that verifies a provider’s National Provider Identifier (NPI). This document confirms your NPI, legal business name, and other provider details.

Why Do Insurance Payors Require an NPI Confirmation Letter?

Insurance companies use the NPI Confirmation Letter to verify that your NPI matches your business and tax records. If your NPI information does not align with your CP-575, W-9, or other credentialing documents, your application may be delayed or denied.
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Credentialing issues caused by incorrect NPI information include:

Enrollment delays due to name mismatches between your NPI and tax records.
Claims processing problems if an incorrect NPI is linked to your practice.
Additional verification steps required by the payor, prolonging the approval process.

Where to Find Your NPI Confirmation Letter

When you first applied for an NPI, NPPES issued a confirmation letter to the address on file. If you don’t have a copy, you can retrieve your NPI information online.
How to Get a Copy of Your NPI Details
Log in to NPPES: Go to NPPES and sign in using your account credentials.
Verify Your Information: Confirm that your business name, address, and NPI number are correct.
Download a Copy: You can print or save a PDF version of your NPI details for submission.

What If My NPI Information Is Incorrect?

If your business name or address has changed, you must update your NPI before submitting credentialing documents. Payors require the NPI details to match exactly with your CP-575, W-9, and other records.
Common Issues That Cause Delays
Outdated business name or address – Ensure your NPI reflects your current legal entity details.
Mismatch between NPI and tax documents – The business name and EIN should align with the CP-575 and W-9.
Incorrect NPI type – Providers enrolling as a group must have a Type 2 NPI, not a personal Type 1 NPI.

Best Practices for Credentialing

Check your NPI details before submitting credentialing paperwork.
Update any outdated information in NPPES to avoid mismatches.
Use the correct NPI type (Type 1 for individuals, Type 2 for group practices).
🥧 At pie, we submit credentialing applications and ensure your documentation is correct. However, only the provider can update their NPI details in NPPES. Be sure to check your NPI information before starting the credentialing process.
What is an NPI Confirmation Letter?
Why Do Insurance Payors Require an NPI Confirmation Letter?
Credentialing issues caused by incorrect NPI information include:
Where to Find Your NPI Confirmation Letter
What If My NPI Information Is Incorrect?
Best Practices for Credentialing
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