Agencies are under growing pressure to improve how healthcare information moves across systems, programs, providers, and stakeholders. At the same time, they are managing increasingly complex environments shaped by legacy infrastructure, fragmented data, evolving mandates, cybersecurity requirements, and rising expectations around accessibility and speed. In response, the Fast Healthcare Interoperability Resources (FHIR) standard is becoming foundational to healthcare modernization efforts across government.
FHIR, developed by HL7 International, provides a modern framework for exchanging healthcare information across systems and applications. It enables organizations to move away from fragmented, custom integrations toward more standardized, API-driven exchanges that are easier to scale, maintain, and operationalize. But for many organizations, the challenge is determining exactly how to operationalize the framework inside real mission environments.
Moving to FHIR at Scale
Across the market, many FHIR initiatives have remained limited to pilots or isolated implementations that are difficult to scale beyond a small set of partners or workflows. Legacy document exchange systems and custom integrations still create operational friction, lengthy onboarding cycles, and ongoing maintenance challenges.
Modernization becomes especially difficult when organizations believe they must choose between maintaining legacy workflows or completely replacing existing infrastructure. In reality, most Federal Health environments require modernization approaches that support coexistence, not disruption. This requires enabling modern FHIR APIs and interoperability workflows while continuing to support existing operational environments and legacy exchange models where necessary. Hybrid approaches can help organizations modernize incrementally, reduce migration risk, and accelerate adoption without disrupting mission-critical operations.
At Unissant, that philosophy has shaped interoperability work across CMS environments, including esMD, where teams implemented secure FHIR REST APIs through the CMS Center for Program Integrity (CPI) API Gateway while enabling those capabilities to operate alongside existing XDR workflows. The goal was to create real-time, API-driven exchanges that improve onboarding, reduce manual processing, and support mission-critical workflows operating at CMS scale.
Operationalizing Interoperability
FHIR adoption alone does not automatically create scalable operational environments. Real interoperability requires governance, standardized workflows, security integration, validation, and reliable operational execution across complex ecosystems. That includes areas like bundle-based transactions, validated FHIR profiles, standardized error handling, enterprise API gateway integration, and consistent approaches to metadata and payload management. These are the elements that help move interoperability from theoretical capability into operational reliability.
For Federal Health organizations, success increasingly depends on whether modernization efforts can support production-scale workflows used daily by programs, providers, intermediaries, and mission stakeholders. Another challenge for healthcare ecosystem modernization is transforming decades of legacy healthcare data into formats that are more usable, interoperable, and operationally actionable.
Many environments still rely heavily on legacy HL7 structures that require significant manual interpretation and integration effort. Those data structures often contain critical operational and clinical information, but they can be difficult to normalize and operationalize efficiently across modern platforms.
Recent advances in generative AI are creating new possibilities for addressing those challenges. At Unissant, teams have evaluated how AI models can help interpret complex pipe-delimited HL7 data formats, convert them into readable narratives, and support transformation into FHIR-based structures. The work reflects a broader focus on applying AI and data capabilities in ways that improve operational execution inside real mission environments while reducing friction across disconnected systems and workflows. We're helping agencies create healthcare data environments that are more connected, scalable, and prepared for future analytics, interoperability, and AI-driven capabilities.
Looking Ahead
Interoperability modernization across Federal Health is no longer centered only on compliance mandates or technology refresh cycles. It is increasingly tied to operational readiness, scalability, and the ability to move information effectively across complex healthcare ecosystems.
FHIR provides an important foundation for creating more connected and actionable health data environments. But long-term success will depend on how effectively agencies can operationalize interoperability inside real mission workflows with the governance, scalability, and reliability required for production environments.
For Unissant, that means continuing to focus on practical modernization approaches that combine interoperability standards, AI-enabled transformation, and mission-driven operational delivery to help Federal Health organizations modernize responsibly and at scale.
