usesHealthPlanIdStandard

This term is proposed for full integration into Schema.org, pending implementation feedback and adoption from applications and websites.

Thing > Property > usesHealthPlanIdStandard

The standard for interpreting thePlan ID. The preferred is "HIOS". See the Centers for Medicare & Medicaid Services for more details.
Values expected to be one of these types
Text
URL
Used on these types
HealthInsurancePlan

Source

https://github.com/schemaorg/schemaorg/issues/1062