Yes, EHR integration via FHIR and HL7 is a common requirement for products that exchange clinical data with established health systems.
FHIR (R4 standard) integration: reading patient records, observations, medications, conditions, encounters; writing clinical observations and care plans back to the EHR; SMART on FHIR for embedded application launching within an EHR; OAuth 2.0 authorization flows with EHR-specific authorization servers.
HL7 v2 (legacy but still common): ADT (admit, discharge, transfer) messages; ORM/ORU (orders and results); SIU (scheduling); MLLP transport over network or VPN.
EHR platforms we’ve integrated with: Epic (App Orchard, FHIR APIs), eClinicalWorks (REST APIs and HL7 interfaces), Nookal (practice management for allied health).
For other major US EHR platforms (Cerner/Oracle Health, Allscripts, Athenahealth, NextGen), we can extend our integration work — they follow similar FHIR R4 patterns with vendor-specific authentication flows and field mappings. We scope these as new integrations with their own discovery and certification time.
Real-world reality: Even with FHIR as a standard, every EHR implementation has quirks. Field mappings differ, optional fields are inconsistently populated, custom extensions are common. We budget integration time generously and recommend pilot testing with each EHR before assuming a generic FHIR connection will work for all of them.