Case Study: Californian Health System achieves real-time application, security, and clinical data visibility with ExtraHop

Top Health System Gains Real-Time Application, Security, and Clinical Data with ExtraHop

Californian Health System is a leading not‑for‑profit hospital network in Northern California, operating more than 20 hospitals and dozens of specialty centers and serving millions of patients. Its IT team needed comprehensive, real‑time visibility into thousands of applications and medical devices to ensure clinicians could access patient data, quickly resolve EHR performance issues, scale virtual desktop infrastructure (VDI), and strengthen security without disrupting care.

By deploying ExtraHop, the CTO gained network‑wide visibility across 35,000 applications, enabling rapid root‑cause troubleshooting (including a fast DNS fix for EHR slowness), bi‑annual upgrade validation, and a major VDI rollout—migrating 10,000 desktops, adding 50,000 My Virtual Workspace subscribers, and deploying 10,000 thin clients across ten hospitals in 18 months. ExtraHop also added a security layer (fast ransomware detection and monitoring of FDA‑locked devices) and unlocked HL7 clinical data for real‑time operational insights like bed availability and medication‑prescribing interventions, improving performance, security, and clinical decision‑making.