Source: Schema.org v30.1 vocabulary. Official usNPI property definition.
What does usNPI mean?
A <a href="https://en.wikipedia.org/wiki/National_Provider_Identifier">National Provider Identifier</a> (NPI) is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services.
Parent properties
Used on types (domainIncludes)
Expected value types (rangeIncludes)
Schema.org domainIncludes and rangeIncludes are descriptive guidance, not strict validation prohibitions. Check the official reference for updates.
Related reference
Browse all Schema.org types and properties · Google feature support status