Public surface / Payer Patient Access APIs

Kaiser Permanente Health Plan Patient Access API

This endpoint declares a complete, interoperable public surface.

Current grade A

Reachability100

Capability transparency80

Interop readiness100

Observed surface

Base URL: https://kpx-service-bus.kp.org/service/cdo/siae/healthplankpxv1rc/FHIR/api
Category: Payer Patient Access APIs
Availability: answered 8 of 8 checks so far; availability is reported once 14 observations exist
Vantage agreement: reachable from all 3 vantages, which are 3 hosts on one network (github-actions): one network's view sampled 3 times, not 3 independent networks

Interpretation

A grade describes two public discovery documents at one point in time. It does not inspect patient data, authenticated behavior, or clinical quality.

Read the scoring method →

Findings

Reachability100

Pass: /metadata answers with HTTP 2xx over HTTPS: reachable from all 3 vantages, which are 3 hosts on one network (github-actions): one network's view sampled 3 times, not 3 independent networksR1 Spec ↗
Pass: /metadata responded in 625 ms (median across 3 reachable vantages on one network)R2 Spec ↗

Capability transparency80

Pass: fhirVersion declared: '4.0.1' (expected 4.x)T1 Spec ↗
Needs attention: software name/version missingT2 Spec ↗
Pass: 10 resource types declaredT3 Spec ↗
Pass: 10/10 declared resources document their interactionsT4 Spec ↗

Interop readiness100

Pass: US Core / CARIN / Da Vinci profiles declared in rest.resource.supportedProfileI1 Spec ↗
Not observed: no vantage retrieved .well-known/smart-configuration on this run, so whether it is published is unknownI2 Spec ↗
Pass: OAuth/SMART security service declared in CapabilityStatementI3 Spec ↗

Observed since 2026-08-08; no changes to declared capability recorded.

Registry provenance

How this entry was verified

live CapabilityStatement fetch (fhirVersion 4.0.1, 10 resource types including Coverage and ExplanationOfBenefit); publisher field reads 'Kaiser Permanente' and implementation description 'FHIR Endpoint powered by Smile CDR' on a kp.org domain. Sourced from ONC's Lantern endpoint export, which records the list source as Kaiser's own developer portal at https://developer.kp.org/#/apis/639c015049655aa96ab5b2f1. This is the health-plan surface; the Kaiser endpoints listed under open.epic.com are the care-delivery side and are not this entry (recorded 2026-08-07)

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<img src="https://chelseakr.github.io/fhir-scorecard/badge/kaiser-permanente-health-plan.svg"
alt="FHIR Scorecard: grade A"></a>

This is an observational snapshot of a public, unauthenticated surface. It is not an audit, a ranking of care quality, or a statement about anyone's regulatory compliance. See how we grade.