Epic Integrations & API Guide
What is Epic Integrations & API Guide 2026: FHIR, App Orchard, HL7 & More?
Complete guide to Epic integrations. Learn about Epic FHIR APIs, App Orchard marketplace, HL7 interfaces, and how to integrate third-party apps with Epic EHR.
Epic is the hardest EHR to integrate with — and the most important. Whether you are building an app, connecting a lab system, or pulling data for analytics, here is how Epic's integration stack actually works.
Epic Integration Types
FHIR R4 APIs
Modern REST APIs using FHIR standard for patient and clinical data access
App Orchard
Epic's curated marketplace of 500+ third-party applications
Epic Bridges (HL7/X12)
Traditional interface engine for healthcare messaging standards
CDS Hooks
Clinical decision support at the point of care
SMART on FHIR
Launch framework for apps embedded in Epic workflows
Care Everywhere
Epic's health information exchange network
Epic App Orchard
App Orchard is Epic's walled garden for third-party apps. Getting listed requires passing Epic's security and integration review, which can take months. But once listed, your app becomes visible to every Epic customer. Here is what is available:
Clinical Decision Support
80+ appsExamples: VisualDx, UpToDate, Isabel Healthcare
Patient Engagement
60+ appsExamples: Klara, Luma Health, Relatient
Analytics & BI
50+ appsExamples: Health Catalyst, Arcadia, Innovaccer
Revenue Cycle
40+ appsExamples: Waystar, Availity, Experian Health
Population Health
35+ appsExamples: Arcadia, Innovaccer, Lightbeam
Telehealth
30+ appsExamples: Teladoc, Amwell, Doxy.me
AI & Automation
25+ appsExamples: Nuance DAX, Abridge, DeepScribe
Specialty Apps
100+ appsExamples: Oncology, cardiology, radiology-specific tools
Epic FHIR Resources
Epic was an early FHIR adopter and now exposes 200+ FHIR R4 resources. These are the ones developers use most:
| Resource | Description |
|---|---|
| Patient | Demographics, identifiers, contact information |
| Encounter | Visits, admissions, appointments |
| Condition | Diagnoses, problems, health concerns |
| Medication | Prescriptions, medication lists |
| Observation | Vitals, lab results, social history |
| DiagnosticReport | Lab reports, imaging studies, pathology |
| Procedure | Surgical procedures, therapies |
| AllergyIntolerance | Drug allergies, food allergies |
Frequently Asked Questions
What is Epic App Orchard?
Epic App Orchard is Epic's marketplace for third-party applications that integrate with Epic EHR. It includes 500+ apps across categories like clinical decision support, patient engagement, analytics, and operational tools. Apps in App Orchard have been reviewed by Epic for security and integration quality.
Does Epic support FHIR?
Yes, Epic fully supports FHIR (Fast Healthcare Interoperability Resources) APIs. Epic was an early adopter of FHIR and provides full FHIR R4 APIs for patient access, provider access, and backend services. Epic's FHIR APIs are used by Apple Health Records, third-party apps, and health information exchanges.
How do I integrate my app with Epic?
To integrate with Epic: 1) Register on Epic's developer portal (open.epic.com), 2) Build your integration using Epic's FHIR APIs or other interfaces, 3) Complete Epic's App Orchard review process, 4) Work with Epic customers to deploy your integration. Epic provides sandbox environments for development and testing.
What is Epic Bridges?
Epic Bridges is Epic's interface engine for connecting Epic to external systems using HL7, X12, and other healthcare standards. Bridges handles lab interfaces, pharmacy connections, imaging integrations, billing feeds, and health information exchange. Bridges requires Epic certification to configure.