Epic CapabilityStatement Cluster C — 301 endpoints

Modal Epic cluster: 301 of 739 production endpoints (41%) deploy this exact CapabilityStatement shape, concentrated in TX (18), CA (18), IL (11). This cluster advertises 47 US Core 6.1 profiles in its CapabilityStatement.

A CapabilityStatement shape cluster groups production FHIR endpoints by the exact CapabilityStatement they serve at runtime. Epic publishes one reference CapabilityStatement, but production hospitals deploy several distinct shapes of it — each cluster is one of those shapes.

At-the-wire characteristics

FHIR version: R4 (4.0.1)
Endpoints in cluster: 301 of 739 Epic production
Resources advertised: 59 in CapabilityStatement
US Core 6.1 profiles: 47 supported
CapStmt shape hash: d3e0436ad1455a5b…
Brands Bundle capture: 2026-08-17

Resources advertised

US Core 6.1 resources (26)

Resources US Core 6.1 expects from a conformant server.

AllergyIntolerance · CarePlan · CareTeam · Condition · Coverage · Device · DiagnosticReport · DocumentReference · Encounter · Goal · Immunization · Location · Medication · MedicationDispense · MedicationRequest · Observation · Organization · Patient · Practitioner · PractitionerRole · Procedure · Provenance · QuestionnaireResponse · RelatedPerson · ServiceRequest · Specimen

Other R4 resources advertised (33)

Additional R4 resources this cluster's CapabilityStatement lists.

Account · AdverseEvent · Appointment · Binary · BodyStructure · Claim · Communication · ConceptMap · Consent · Contract · DeviceRequest · DeviceUseStatement · Endpoint · EpisodeOfCare · ExplanationOfBenefit · FamilyMemberHistory · Flag · Group · ImagingStudy · ImmunizationRecommendation · List · Measure · MeasureReport · Media · MedicationAdministration · NutritionOrder · Questionnaire · RequestGroup · ResearchStudy · ResearchSubject · Substance · Task · ValueSet

Top recognizable hospitals (18 of 18)

Caldera Family Medicine
Cascade Internal Medicine
Coastal Carolina Health Care
COIPA
Dickson Medical Associates
Dr. Bruce W Moskowitz, MD
Dr. Burket's Office
Drexel Medicine
East Cascades Women's Group
El Rio Health
Fall Creek Internal Medicine
Foothill Family Clinic
Innovista Medical Center
MY DR NOW
Pine Springs Health Internal Medicine
Ritual Medical
The Center
West Bend Family Medicine

Geographic distribution

TX (18) · CA (18) · IL (11) · NY (10) · FL (9) · NC (9) · OH (8) · WI (8) · PA (7) · MA (7)

One observed quirk in this vendor's deployments

Patient search refuses to enumerate without demographics-or-_id; birthdate alone fails Epic's Patient search is not population-enumerable on the public sandbox: `Patient?_count=200` cannot be used to discover unknown patients. Live customer integrations face the same gate — patient discovery is by-identifier or by-demographics, never by-population. Catalog known sandbox patient IDs out of band and drive testing from that roster.

From the public Epic overlay finding sweep (2026-04-26). Full vendor overlay has 22 findings with verbatim quotes and source URLs.

Mock this endpoint

This outlier cluster has too few production endpoints for us to host a dedicated mock under /v/cluster/epic-cluster-C/ today. The modal Epic cluster is the wire shape that most production deployments use — that's the right starting point for integration testing.

Compatible with Epic's published FHIR R4 CapabilityStatement (Epic February 2026 release, fetched 2026-04-26). Not affiliated with or endorsed by Epic Systems Corporation. Trademarks of Epic Systems Corporation are used for identification only. Synthetic sandbox modeled after observed Epic deployment shapes. Not affiliated with the vendor or any listed hospital. Trademarks used for identification only.