By late 2025, Interoperability has moved from a regulatory hurdle to a standard feature, with over 90% of ambulatory EHR vendors supporting FHIR (Fast Healthcare Interoperability Resources) APIs. This universal standard allows for the real-time, secure exchange of clinical and administrative data between disparate systems, such as a primary care EHR and a third-party laboratory or imaging center.

The 2025 CMS Interoperability Framework has further pushed for "Information Blocking" elimination, ensuring that patient data follows the individual regardless of the provider. For an analysis of how FHIR-driven integration supports "Automated Prior Authorizations" and reduces administrative denials, refer to the Ambulatory EHR Market industry report. This connectivity is essential for the transition to Value-Based Care, where reimbursement is tied to coordinated patient outcomes rather than the volume of services provided.