FHIR Development Solutions
Custom FHIR R4 servers, SMART on FHIR apps, CDS Hooks, and ONC compliance implementation for US healthcare organizations — built by certified FHIR engineers.
Our FHIR Development Services
From FHIR server setup to SMART app certification — we cover every layer of modern FHIR development for payers, providers, and health tech companies.
FHIR R4 Server Development
Build and configure production-grade FHIR R4 servers with compliant REST endpoints, resource validation, search parameters, and CapabilityStatement generation.
- ✓FHIR R4 compliant REST endpoint development
- ✓Full CRUD for Patient, Encounter, Observation, Condition, and 80+ resources
- ✓Custom search parameter implementation and chaining
- ✓CapabilityStatement / conformance resource generation
- ✓FHIR validation against published IG profiles
- ✓Versioning, audit logging, and provenance tracking
SMART on FHIR App Development
End-to-end SMART on FHIR application development including OAuth 2.0 authorization, EHR launch sequences, standalone launch, and clinical workflow embedding.
- ✓SMART App Launch Framework implementation
- ✓OAuth 2.0 / OpenID Connect authorization flows
- ✓EHR-launch and standalone-launch pattern support
- ✓SMART scopes (patient/, user/, system/ contexts)
- ✓Epic App Orchard and Cerner code marketplace certification prep
- ✓Refresh token handling and session management
CDS Hooks Integration
Clinical Decision Support Hooks development — custom CDS services that surface evidence-based alerts, order sets, and recommendations inside EHR workflows.
- ✓CDS Hooks service development (patient-view, order-select, order-sign)
- ✓FHIR prefetch query design for low-latency responses
- ✓Evidence-based card and suggestion authoring
- ✓Integration with Epic CDS Hooks sandbox and Cerner hooks framework
- ✓Analytics feedback loop for card acceptance rates
- ✓HIPAA-compliant data handling within hook requests
FHIR Bulk Data Export
FHIR Bulk Data Access (Group/$export, Patient/$export, System/$export) implementation for population health analytics, payer data exchange, and research pipelines.
- ✓FHIR Bulk Data Access specification implementation
- ✓Group-level, patient-level, and system-level export endpoints
- ✓Asynchronous job management and status polling
- ✓NDJSON output with resource type filtering
- ✓Backend service authorization (system-level SMART)
- ✓Integration with data warehouses (Snowflake, BigQuery, Redshift)
ONC & HTI-1 Compliance Development
Implement the technical requirements of the ONC 21st Century Cures Act and HTI-1 rule — patient access APIs, provider directory, payer-to-payer exchange, and information blocking compliance.
- ✓Patient Access API (FHIR R4 endpoint for member data)
- ✓Provider Directory API (FHIR endpoint for provider data)
- ✓Payer-to-payer data exchange implementation
- ✓Information blocking exceptions documentation
- ✓SMART on FHIR for patient-facing app authorization
- ✓Compliance gap assessment and remediation roadmap
HL7 v2 to FHIR Conversion
Automated transformation of legacy HL7 v2 messages into FHIR R4 resources using Mirth Connect and custom mapping engines — with round-trip validation.
- ✓ADT → FHIR Patient / Encounter resource mapping
- ✓ORM/ORU → FHIR ServiceRequest / DiagnosticReport mapping
- ✓SIU → FHIR Appointment / Schedule conversion
- ✓Z-segment and non-standard field handling
- ✓Round-trip validation (FHIR back to HL7 v2)
- ✓Mirth Connect channel-based transformation pipelines
Frequently Asked Questions
What FHIR version do you develop against?
We primarily target FHIR R4 (4.0.1), which is required for ONC compliance and supported by all major EHRs. We also support FHIR STU3 for organizations with legacy systems and can implement upgrade paths from STU3 to R4.
Can you help us pass Epic App Orchard review?
Yes. We have experience building SMART on FHIR apps certified through Epic App Orchard and Cerner's code marketplace. We guide you through the sandbox testing, security review, and go-live process.
How long does a FHIR R4 server implementation take?
A baseline FHIR R4 server with core resources (Patient, Encounter, Observation, Condition) typically takes 6–10 weeks. Full implementation with bulk export, SMART auth, and custom profiles depends on scope.
Do you work with open-source FHIR servers like HAPI?
Yes. We configure, extend, and maintain HAPI FHIR servers and can also implement FHIR on top of custom backends. We help you choose the right stack based on your infrastructure and compliance requirements.
Related Services & Reading
Ready to build on FHIR R4?
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