Hire SMART on FHIR developers when your application needs to run inside a clinician’s EHR session or pull patient data through an authorized FHIR API rather than a fragile custom interface. TechEsperto builds SMART app launch flows, OAuth 2.0 authorization, FHIR resource mapping, and CDS Hooks services for health tech products and provider organizations. This page explains what SMART on FHIR development involves, which platforms and profiles matter, the security work that cannot be skipped, and how engagements are structured.Share your integration requirementsfor a scoped technical review.
SMART on FHIR is a specification layered on top of HL7 FHIR that defines how an external application authenticates, launches, and requests scoped access to clinical data. Getting it right involves far more than calling REST endpoints, because the launch context, token exchange, and scope negotiation all have to match what the EHR vendor expects. The services below cover the components our developers build most often when teams hire FHIR integration specialists for a new or stalled project.
We implement both launch patterns correctly, handling the launch parameter, issuer discovery, and context resolution so your app opens with the right patient and encounter already selected inside the clinician workflow.
Scope strings determine exactly what your app can read or write. We configure PKCE flows, refresh token handling, and least-privilege scope requests so approval reviews do not stall over excessive permissions.
Patient, Observation, Condition, MedicationRequest, and DocumentReference each carry vendor-specific quirks. We map your data model to the correct resources and profiles rather than forcing clinical data into a generic schema.
For decision support at the point of care, we build hook services that respond to patient-view or order-sign events with cards, suggestions, and SMART app links inside the clinician’s existing workflow.
When your use case needs cohorts instead of single patients, we implement Bulk Data export with asynchronous job handling, NDJSON parsing, and backend service authorization using signed JWT assertions.
We register your app across vendor developer programs, run conformance testing in sandboxes, and prepare the technical documentation reviewers ask for before production access is granted.
Every EHR vendor implements the FHIR standard with its own extensions, supported resource list, and approval process, which is why integration timelines vary so widely between platforms. A build that works cleanly against a reference server can still fail its first production connection because a required search parameter is unsupported. Our developers work across the environments below and confirm actual capability against each vendor’s published conformance statement before committing to a delivery timeline for your project.
Epic integration involves registering through its developer program, selecting the correct client type, and matching supported FHIR versions. We handle app submission requirements and the differences between sandbox and production endpoints.
Oracle Health exposes both patient-facing and provider-facing FHIR APIs with separate authorization paths. We configure system accounts, tenant identifiers, and scope requests according to each implementation’s requirements.
For internal platforms we deploy and configure HAPI FHIR, including custom profiles, search parameters, and validation rules, then connect your application against a server you fully control.
Azure Health Data Services, Google Cloud Healthcare API, and AWS HealthLake each provide managed FHIR stores. We handle provisioning, identity configuration, and data ingestion with cloud engineering support.
Many hospitals still run HL7 v2 messaging. We build translation layers that convert ADT, ORU, and ORM messages into FHIR resources so modern apps can consume legacy feeds reliably.
FHIR endpoints exposed to the internet need strict TLS, rate limiting, and access logging. Our Nginx experts configure that gateway layer alongside application development.
Clinical integrations carry obligations that ordinary API work does not, and reviewers will examine your authorization model, audit trail, and data minimization approach before granting production access. Treating security as a later hardening phase usually means rebuilding the authorization layer. Our developers build against published specifications from the start, and the areas below are the ones that most often determine whether a SMART on FHIR application passes vendor review and internal risk assessment without expensive rework.
US Core profiles constrain how resources must be represented for regulatory data exchange. Building to these profiles rather than base FHIR avoids failures when your app meets real production data.
Version 2 introduced granular scopes with finer control over read and write permissions. We implement the version your target EHR supports and design for a migration path where both are in play.
We limit what the application stores, keep tokens out of logs and browser storage where possible, and design so that data leaves the EHR only when the feature genuinely requires it.
Regulated environments need defensible records of who accessed what and when. We implement structured audit logging aligned to your compliance team’s retention and review requirements.
If an engagement involves protected health information, a Business Associate Agreement should be executed before any access is granted. We work within your legal and security review process rather than around it.
We test against published conformance suites and build regression coverage for authorization flows, because token and scope behavior tends to break silently after vendor platform updates.
The specification supports a wide range of applications, but the projects that reach production usually solve a specific workflow problem for a clinician or patient rather than aiming to be a general platform. Knowing which category your product falls into shapes the scopes you request, the launch pattern you implement, and the approval path you follow. The use cases below reflect the requests we see most often from health tech founders and provider IT teams evaluating FHIR development partners.
Apps that launch in context and surface a focused view, such as a risk score or specialty-specific summary, without making the clinician leave the chart or re-enter patient identifiers.
Standalone launch apps let patients authorize access to their own records for tracking, second opinions, or care coordination, typically using patient-scoped tokens and a mobile-first interface.
Bulk Data export feeds cohort analysis, quality reporting, and risk stratification. The engineering focus here shifts toward pipeline reliability and de-identification rather than interactive interfaces.
Applications that move a patient between providers need Task, ServiceRequest, and DocumentReference handling, plus clear status tracking so nothing sits unacknowledged in a queue.
Device and app-generated Observation data can be written back to the record when the EHR permits it, which requires write scopes and careful provenance handling to keep clinical data trustworthy.
Outreach and follow-up often live outside the EHR. Our CRM developers connect authorized clinical data to engagement workflows without duplicating records unnecessarily.
FHIR projects benefit from a short technical discovery phase because the vendor’s actual API capability, not your feature list, sets the realistic scope. We start by confirming what the target platform supports, then structure the build accordingly. From there you can engage a dedicated engineer, a fixed-scope project, or augmentation for a specific gap, using the same models described in our guide to hiring dedicated developers across other technologies.
A short paid assessment confirming supported resources, scopes, and approval requirements for your target EHR, delivered as a technical feasibility document you can take to stakeholders.
For a defined deliverable such as a single SMART app or one CDS Hooks service, fixed pricing gives you total cost before development begins and a clear acceptance definition.
An engineer working only on your product, which suits health tech companies maintaining multiple EHR connections where accumulated platform knowledge compounds in value over time.
If your developers know your domain but not the specification, we add FHIR-specific capability for the authorization and mapping layers while your team owns the product surface.
Vendor APIs change, certificates expire, and scopes get deprecated. Retained support covers monitoring, version upgrades, and re-certification work as platform requirements evolve.
Our work and story have been picked up by news outlets and databases worldwide.
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SMART on FHIR is a set of rules for how an outside application logs in to an electronic health record and asks for permission to read or write specific clinical data. FHIR defines the data format, while SMART defines the authorization and launch behavior that makes third-party apps possible.
Yes. Production access requires registering through the vendor’s developer program and meeting its technical and security review criteria, and in most cases the provider organization must also authorize your app in their environment. Sandbox development can begin immediately while that process runs.
A working sandbox integration for a focused use case can be built in a few weeks. Reaching production typically takes longer because vendor registration, security review, and provider-side authorization run on their timelines. We recommend planning approval steps in parallel with development.
Yes. Once data is authorized and retrieved, it can flow to analytics platforms, CRM systems, or internal databases, subject to your compliance requirements. We design these pipelines to minimize duplication of protected data and keep the clinical record as the source of truth.
Build to the version your target EHR actually supports, which is the practical constraint. Version 2 offers more granular permissions and is where the ecosystem is heading, so we structure code so scope handling can be extended rather than rewritten when platforms upgrade.
We implement technical safeguards including access controls, encryption in transit, audit logging, and data minimization. Compliance overall is a shared responsibility involving your policies, agreements, and risk assessments, so we work within your security team’s framework rather than presenting a certificate as a substitute.
Tell us what you’re building. Our team will get back to you within one business day with a clear, no-obligation plan.
