The NPI Registry connector gives Claude access to the US National Provider Identifier (NPI) Registry, containing information about all HIPAA-covered healthcare providers in the United States. Look up provider credentials, search for specialists by location and specialty, and validate NPI numbers for credentialing and referral workflows. You can use the NPI Registry connector to: Verify a Provider for Credentialing: "I need to verify the credentials for NPI 1245319599. Is this NPI valid and can you get me their information?" Build a Referral Network: "Find all pediatric cardiologists in the Boston area" Find a Specific Provider: "Search for Dr. Jennifer Smith who practices in Chicago" Validate NPI Numbers: "Is NPI 1234567890 a valid and active provider identifier?"