About NPI Data Registry (npidata.net) & Federal Data Methodology

Primary Federal Public-Domain Sources

• CMS NPPES Registry API v2.1: Freedom of Information Act (FOIA)-releasable National Plan and Provider Enumeration System records.
• HHS Office of Inspector General (OIG) LEIE: Official List of Excluded Individuals/Entities (84,224 records synchronized).
• CMS Provider Data API (PECOS & Medicare Utilization): Order & Referring eligibility flags, Medicare Part B CPT/HCPCS utilization, and Part D prescriber summaries.
• NUCC Healthcare Provider Taxonomy: National Uniform Claim Committee 10-character classification crosslinked to CMS Medicare Specialty Codes.

Medical & Regulatory Disclaimer: Information on npidata.net is provided for informational, administrative, and credential-research purposes only and does not constitute medical advice or official primary-source legal certification where direct state-board verification is mandated by Joint Commission / NCQA standards.

Editorial Governance, Verification & Institutional Contacts

• Credentialing & Enterprise Compliance Desk: [email protected]
• Practitioner Privacy & Contact Redaction Desk: [email protected] (or via Verified Privacy Portal)
• Developer API & Technical Support: [email protected]