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Spotlight PEPPOL BIS Billing 3.0 The EU e-invoicing mandate is here — France Sept 2026, Belgium Jan 2026, Germany 2025.

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Foundations

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Standards

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Flagship messages

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Tools

Epic MyChart

On this page

Epic Systems leading patient portal.

Definition

MyChart features: Patient records, Appointment scheduling, Test results, Messaging providers, Prescription refills, Telehealth video visits, Bill payment, Health summary, COVID/flu vaccine records. Native FHIR R4 integration via Epic on FHIR (~700 APIs available). Epic adoption ~250M patient records, 305000 healthcare professionals, ~30% US hospital market share. Headquarter Verona Wisconsin, privately held by Judith Faulkner.

Origin

Epic Systems founded 1979 by Judith Faulkner ; MyChart launched 2000 ; Epic on FHIR API published 2015 ; ~250M patient records 2024.

Example in context

A Cleveland Clinic patient uses MyChart to book a cardiologist appointment, download blood test results in FHIR PDF, and chat via secure messaging.

  • Epic Systems — EHR vendor.