InterSystems IRIS (and its predecessor, InterSystems Caché) is the technology platform underlying some of the most sophisticated healthcare data management environments in California. Epic, one of the most widely deployed EHR platforms in California's major health systems, runs on InterSystems technology. HealthShare, InterSystems' dedicated health information exchange platform, powers clinical data sharing across California HIE networks. Organizations that have built custom clinical applications, analytics platforms, or integration environments on InterSystems technology have often invested years of development and significant institutional knowledge in these platforms.\n\nZerosums Technology provides InterSystems IRIS consulting for California healthcare organizations at all points on the InterSystems lifecycle. Whether you are implementing IRIS for Health for the first time, migrating an existing Caché or Ensemble application to IRIS, optimizing a production IRIS deployment that is struggling with performance, or building new FHIR-based integrations on top of your IRIS platform, our consultants bring deep InterSystems expertise to the engagement.\n\nCalifornia's health systems and integrated delivery networks represent some of the most complex InterSystems deployments in the world. Large California health systems often run InterSystems HealthShare environments connecting dozens of hospitals and hundreds of physician practices, processing millions of HL7 messages daily. Performance tuning, architecture optimization, and upgrade planning for these environments requires expertise that goes beyond what most InterSystems customers have in-house.\n\nFor California healthcare technology companies building products on IRIS for Health, we provide development consulting that helps organizations leverage IRIS's native FHIR R4 server capabilities, its high-performance ObjectScript development environment, and its built-in analytics and reporting tools. IRIS for Health's integrated FHIR server makes it an increasingly attractive platform for California digital health companies building applications that need to manage healthcare data at scale.