# Devoted Health > Devoted Health is a Medicare Advantage health insurer that publishes CMS Interoperability (21st Century Cures Act) FHIR R4 (4.0.1) APIs. A member-authorized Patient Access API exposes claims, clinical, and coverage data, and public Provider Directory, Pharmacy Directory, and Drug Formulary APIs expose network and formulary data. Authorization is OAuth 2.0 / OpenID Connect with SMART-on-FHIR. ## APIs - [Patient Access API](https://www.devoted.com/developers/): member-authorized FHIR R4 — Patient, Condition, Encounter, Medication, ExplanationOfBenefit. Base: https://api.prod.devoted.com/fhir - [Provider Directory & Formulary API](https://www.devoted.com/developers/): public FHIR R4 — Practitioner, PractitionerRole, Organization, OrganizationAffiliation, Location, HealthcareService, InsurancePlan, MedicationKnowledge, List. Base: https://fhir.devoted.com/fhir ## Specs - [Patient Access OpenAPI (Swagger 2.0)](openapi/devoted-health-patient-access-openapi-original.json) - [Provider Directory OpenAPI 3.0.1](openapi/devoted-health-provider-directory-openapi-original.yml) - [Patient Access CapabilityStatement](conformance/devoted-health-patient-access-capabilitystatement.json) - [Provider Directory CapabilityStatement](conformance/devoted-health-provider-directory-capabilitystatement.json) ## Auth - [OpenID Connect discovery](well-known/devoted-health-openid-configuration.json) — issuer https://login.devoted.com/ - [SMART configuration](well-known/devoted-health-smart-configuration.json) - [Authentication profile](authentication/devoted-health-authentication.yml) - [OAuth scopes](scopes/devoted-health-scopes.yml) - App registration: https://forms.gle/UFYvckiAeEjWP49K9 — contact interop@devoted.com ## Docs - [Developer portal](https://www.devoted.com/developers/) - [Patient Access Swagger UI](https://devoted.com/developers/fhir/swagger/) - [Provider Directory server / Swagger](https://fhir.devoted.com) - [Conventions](conventions/devoted-health-conventions.yml) - [Error catalog (OperationOutcome)](errors/devoted-health-problem-types.yml) - [Data model](data-model/devoted-health-data-model.yml) - [Lifecycle](lifecycle/devoted-health-lifecycle.yml) - [Conformance](conformance/devoted-health-conformance.yml)