NPI Confirmation Letter

Your NPI Confirmation Letter shows your National Provider Identifier and related details. Some payors request it to verify enrollment.

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.

Credentialing issues caused by incorrect NPI information include:

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

  1. Log in to NPPES: Go to NPPES and sign in using your account credentials.

  2. Verify Your Information: Confirm that your business name, address, and NPI number are correct.

  3. 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  • Outdated business name or address – Ensure your NPI reflects your current legal entity details.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  • Update any outdated information in NPPES to avoid mismatches.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).

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