John Muir Health runs an Epic FHIR R4 endpoint that matches the modal Epic CapabilityStatement shape (387 Epic endpoints match this shape nationwide).
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Mock this endpoint — try it right now, no signup
curl "https://api.mock.health/v/cluster/epic-cluster-A/open/fhir/r4/Patient?_count=5"
https://fhir.johnmuirhealth.com/fhir-prd/api/FHIR/R4/
Public CapabilityStatement endpoint from the vendor's Brands Bundle. Not affiliated with John Muir Health.
This endpoint matches the Epic CapabilityStatement cluster A, which 387 production endpoints share.
59 resources advertised in this cluster's CapabilityStatement, supporting 47 US Core 6.1 profiles.
Account · AdverseEvent · AllergyIntolerance · Appointment · Binary · BodyStructure · CarePlan · CareTeam · Claim · Communication · ConceptMap · Condition · Consent · Contract · Coverage · Device · DeviceRequest · DeviceUseStatement · DiagnosticReport · DocumentReference · Encounter · Endpoint · EpisodeOfCare · ExplanationOfBenefit · FamilyMemberHistory · Flag · Goal · Group · ImagingStudy · Immunization · ImmunizationRecommendation · List · Location · Measure · MeasureReport · Media · Medication · MedicationAdministration · MedicationDispense · MedicationRequest · NutritionOrder · Observation · Organization · Patient · Practitioner · PractitionerRole · Procedure · Provenance · Questionnaire · QuestionnaireResponse · RelatedPerson · RequestGroup · ResearchStudy · ResearchSubject · ServiceRequest · Specimen · Substance · Task · ValueSet
John Muir Health's FHIR endpoint matches a Epic CapabilityStatement shape we host as a synthetic sandbox. Curl it anonymously right now — no signup, no partner contract:
curl "https://api.mock.health/v/cluster/epic-cluster-A/open/fhir/r4/Patient?_count=5"
Same CapabilityStatement shape and resource subset as John Muir Health's production endpoint, with synthetic patients that keep living — new encounters and observations land daily, so _since polling and delta syncs behave like production. Build your Epic integration against the exact wire shape this hospital uses. Get credentials — free, 60 seconds · Pricing · Book a 15-minute demo.
Synthetic sandbox modeled after observed Epic deployment shapes. Not affiliated with John Muir Health or Epic. Trademarks used for identification only.