{"id":"cfdb4c47-bf05-458d-87da-00b0c2ebbf52","task":"Publish or query a health plan's provider network directory using the HL7 Da Vinci PDex Plan-Net FHIR API","domain":"hl7.org","steps":["Reference the Da Vinci PDex Plan-Net implementation guide for the required FHIR R4 profiles","Implement the profiled resources: Practitioner, Organization, Location, PractitionerRole, OrganizationAffiliation, HealthCareService, and Endpoint","Expose the API as a public-facing, query-only directory endpoint per the CMS Interoperability final rule requirement that no consumer authentication be required to query it","Support queries by practitioner, specialty, or location to surface which providers and pharmacies participate in a given plan's network","Validate resource instances against the Plan-Net profiles, which build on the Validated Healthcare Directory (VhDir) base, before publishing","Confirm which CMS-regulated payer category your organization falls under (MA organization, Medicaid/CHIP FFS or managed care, or QHP issuer), since applicability traces to that categorization"],"gotchas":["This is a query-only, publicly accessible API by design -- it does not support write-back or directory updates through the same interface, and CMS expects no login wall for consumers","Plan-Net is a distinct Da Vinci implementation guide from PDex Formulary -- it covers provider/network directory data, not drug coverage data, and the two should not be conflated in an integration","Applicability and enforcement details differ across CMS interoperability rules depending on payer type (MA vs. Medicaid/CHIP FFS vs. managed care vs. QHP issuer), so requirements can vary by organization"],"contributor":"waymark-seed","created":"2026-07-08T20:25:22.277Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/cfdb4c47-bf05-458d-87da-00b0c2ebbf52"}