Epic EHR Integration Services
Expert Epic Bridges HL7, FHIR R4 API integration, SMART on FHIR app development, and Epic App Orchard certification — delivered by experienced Epic integration engineers.
We deliver expert Epic EHR integration for health-tech vendors, digital health companies, and health systems connecting to Epic-hosted environments. Our engineers build and certify the full range of Epic connectivity: Epic Bridges HL7 v2 interfaces (ADT, ORM, ORU, SIU, MDM, DFT, VXU), modern Epic FHIR R4 API integration with SMART on FHIR authorization, Epic App Orchard certification, CDS Hooks clinical decision support, and MyChart patient-facing apps.
Epic integration happens across two layers. The Epic Bridges interface layer handles high-volume HL7 v2 messaging over MLLP — the backbone of clinical and financial data exchange. The Epic FHIR R4 APIlayer (tested in the open.epic.com sandbox, authorized via OAuth 2.0 / SMART on FHIR) handles modern, app-based read/write access to discrete clinical resources. Most production Epic projects use both, plus App Orchard certification to list and distribute an app. Here's how we cover each layer.
Epic Integration Services
From Epic Bridges HL7 interfaces to FHIR R4 APIs and App Orchard certification — we cover every layer of Epic EHR integration.
Epic Bridges HL7 Interface Development
Custom Epic Bridges HL7 v2 interface development — ADT, ORM, ORU, SIU, MDM, DFT, and VXU message types with Epic-specific segment handling and ACK management.
- ✓Epic Bridges ADT (A01–A60) patient data feed configuration
- ✓ORM/ORU lab order and result interfaces via Epic Bridges
- ✓SIU scheduling event interfaces for appointment systems
- ✓MDM document management for clinical document exchange
- ✓VXU immunization data feeds from Epic to registries
- ✓Epic-specific Z-segment and non-standard field handling
Epic FHIR R4 API Integration
Epic FHIR R4 integration for your applications — all US Core resources, Epic-specific extensions, SMART on FHIR authorization, and Epic's open.epic.com sandbox.
- ✓Epic FHIR R4 read/write API integration (all supported resources)
- ✓SMART on FHIR OAuth 2.0 for Epic (EHR-launch and standalone)
- ✓US Core profile compliance for Epic FHIR resources
- ✓Epic-specific extensions (Coverage, CareTeam, Appointment)
- ✓Sandbox testing via open.epic.com and Epic's MyChart sandbox
- ✓Production API promotion and post-launch monitoring
Epic App Orchard Certification
End-to-end Epic App Orchard submission support — application development, technical review preparation, Epic validation testing, and marketplace listing.
- ✓Epic App Orchard application registration and profile setup
- ✓Technical architecture review aligned with Epic's requirements
- ✓Epic validation testing across all supported API categories
- ✓Security review preparation (SMART scopes, data minimization)
- ✓Epic reviewer coordination and issue resolution support
- ✓App Orchard listing optimization and post-approval monitoring
Epic CDS Hooks Development
Clinical Decision Support Hooks for Epic — custom CDS services that surface alerts, recommendations, and order sets natively inside Epic workflows via the CDS Hooks framework.
- ✓CDS Hooks service development for Epic (patient-view, order-select, order-sign)
- ✓Epic CDS Hooks sandbox registration and testing
- ✓FHIR prefetch design for low-latency Epic CDS responses
- ✓Evidence-based card authoring aligned with clinical workflows
- ✓Integration with Epic's BPA (Best Practice Advisory) framework
- ✓Card analytics and clinician acceptance rate monitoring
Epic MyChart Patient-Facing Integration
Integrate patient-facing applications with Epic MyChart — FHIR Patient Access APIs, SMART standalone launch from MyChart, and patient consent management.
- ✓SMART standalone launch from Epic MyChart patient portal
- ✓FHIR Patient Access API (claims, clinical data, immunizations)
- ✓Epic Share Everywhere integration for patient-directed sharing
- ✓Patient consent and authorization flow implementation
- ✓Epic's patient-facing FHIR R4 resource access
- ✓MyChart open.epic.com sandbox testing for patient apps
Bidirectional Epic Integration
Two-way data exchange with Epic — write-back of orders, results, documents, and external data into Epic while pulling clinical data for downstream applications.
- ✓Bidirectional ADT patient data synchronization with Epic
- ✓External lab result write-back into Epic via ORU messages
- ✓CDA / C-CDA document import into Epic's chart
- ✓External order routing from Epic to downstream systems
- ✓MPI (Master Patient Index) patient matching and merging
- ✓Epic Identity (EMPI) cross-referencing for patient lookup
Ready to connect to Epic?
Get a Free ConsultationUnderstanding Epic Integration: Bridges, FHIR R4, and App Orchard
Epic Bridges (HL7 v2)
Epic's interface engine for HL7 v2 messaging is called Bridges. It exchanges ADT, ORM/ORU, SIU, MDM, DFT, and VXU messages with external systems, applying Epic-specific segment and field conventions. A reliable Epic Bridges HL7 interface depends on correct mapping of these conventions plus robust acknowledgment handling — the work our Mirth Connect support engineers do every day on Mirth Connect.
Epic FHIR R4 API
Epic exposes a FHIR R4 API conformant to US Core, with Epic-specific extensions (Coverage, CareTeam, Appointment, and more). Apps authenticate with SMART on FHIR / OAuth 2.0 in two main flows: EHR launch (the app opens inside Epic / Hyperspace) and standalone launch(the app is launched independently, e.g. from MyChart). Development and testing happen in Epic's open.epic.com sandbox before production promotion. For the FHIR R4 side in depth, see our FHIR integration practice.
Epic App Orchard certification
To distribute a third-party app to Epic-running health systems, you typically list it on Epic's App Orchard (now part of Epic's Connection Hub / Showroom program). Certification involves registration, technical architecture review, validation testing across the API categories you use, a security review (SMART scopes, data minimization), and Epic reviewer coordination. Review timelines typically run 8–20 weeks depending on complexity and queue.
CDS Hooks and MyChart
For decision support, CDS Hookslets you surface cards (alerts, recommendations, order sets) natively inside Epic workflows, integrating with Epic's Best Practice Advisory (BPA) framework. For patient-facing apps, MyChartintegration uses SMART standalone launch and Epic's Patient Access FHIR APIs, including consent and Share Everywhere flows. We build SMART on FHIR apps and CDS Hooks end to end.
Do you need an Epic customer relationship?
No — most of our clients are third-party vendors and digital health companies connecting to their customers'Epic-hosted systems. You don't have to run Epic yourself.
Planning an Epic integration or App Orchard submission?
Tell us your use case, FHIR resources, and target health systems — we'll map the work and give you a clear timeline and quote.
Get a Free ConsultationFrequently Asked Questions
Do we need to be an Epic customer to work with you on Epic integration?
No. We work with third-party vendors, health tech companies, and digital health startups integrating with Epic-hosted health systems. You don't need to be an Epic customer yourself — your client's health system runs Epic and you need to connect to it.
How long does Epic App Orchard review take?
Epic App Orchard review typically takes 8–20 weeks depending on application category, API usage, and Epic's current queue. We help you prepare a strong submission to minimize review cycles.
Can you help us test in Epic's sandbox before we go live?
Yes. We use Epic's open.epic.com sandbox for FHIR API development and Epic's dedicated sandbox environments for Bridges HL7 interfaces. We manage the full sandbox-to-production promotion process.
What Epic APIs support write-back (not just read)?
Epic supports FHIR write for several resource types including Appointment (booking), QuestionnaireResponse, Communication, and others depending on the Epic version and configuration. We assess your specific use case and Epic's capabilities to determine the right approach.
What is Epic FHIR R4 integration?
Epic FHIR R4 integration connects an application to Epic's FHIR R4 API to read and (where supported) write discrete clinical data — patients, observations, medications, appointments, and more — using SMART on FHIR OAuth 2.0 authorization. Development is done in Epic's open.epic.com sandbox and promoted to production after App Orchard review where required.
What is the difference between Epic Bridges and Epic's FHIR API?
Epic Bridges is Epic's HL7 v2 interface layer for high-volume, real-time message exchange (ADT, lab orders/results, scheduling). Epic's FHIR R4 API is the modern, app-oriented layer for read/write access to discrete resources via REST and SMART on FHIR. Many integrations use both — Bridges for system-to-system messaging, FHIR for app connectivity.
Is Epic App Orchard the same as Connection Hub?
Essentially yes — Epic has been folding the App Orchard marketplace into its newer Connection Hub and Showroom programs, so you'll see both names used for Epic's third-party app listing and review process. The underlying work is the same: registration, technical architecture review, validation testing, and security review. We support submissions under either branding.
Related Services & Reading
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