N290: Missing/incomplete/invalid rendering provider primary identifier
The claim is missing the NPI of the provider who actually performed the service, or the rendering provider NPI submitted does not match an enrolled provider.
Corrective actions
- 1
Verify the rendering provider's NPI
Confirm the individual rendering provider's NPI is correctly entered in the rendering provider loop, not just the billing/group NPI.
- 2
Confirm the rendering provider is enrolled and credentialed
Check that the rendering provider is credentialed with the payer and linked correctly to the billing group before resubmitting.
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Retrieved 2026-07-18.
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DenialPath provides billing and administrative guidance based on published CMS and X12 sources. It is not medical advice, not a coverage determination, and not a guarantee of payment. NCCI and MUE edits are republished quarterly and payer policies vary by contract. Always confirm against the payer's own current policy before submitting or appealing.