Cooperative Computing Alliance

Medical Providers

A read-only mirror of national health care provider registries. Search and look up providers, resolve external identifiers, and read the provenance of every record.

The data model is registry-neutral, so the same representation describes any country's registry. The United States CMS NPPES corpus is the first registry.

Service

• Health: Operational
• Records: 29,158
• Registries: 1

Full status · Sources

Registries

Registry	Country	Identifier	Records	Status
US National Plan and Provider Enumeration System us-nppes	US	National Provider Identifier (NPI)	29,158	Active
Canadian health care provider registries ca-cihi	CA	—	0	Planned
NHS Organisation Data Service gb-nhs-ods	GB	—	0	Planned
Australian Health Practitioner Regulation Agency register au-ahpra	AU	—	0	Planned

Planned registries carry no data and are listed so integrators can see intended coverage.

Built for integration

Contracts

OpenAPI 3.1, RFC 9727 catalog, APIs.json, and Arazzo workflows.

openapi.json

For agents

llms.txt, Markdown records, and an MCP endpoint with read-only tools.

llms.txt

Provenance

Every release binds a manifest with source digests, counts, and shard assignments.

Releases