healow Patient-Centric FHIR API
Patient-facing FHIR R4 APIs accessible through the healow developer portal, letting third-party applications connect to the healow network for clinical data and scheduling. Served by the same eCW FHIR Facade build and the same authorization server as the provider-facing API, with 17,291 activated practice endpoints published in the healow service base URL directory. Read scopes conform to US Core 3.1.1 (USCDI v1) and US Core 6.1.0 (USCDI v3). A published FHIR rate limit of 250 calls per minute per practice-code base URL took effect 7 October 2025.
Documentation
Documentation
https://connect4.healow.com/apps/jsp/dev/r4/fhirClinicalDocumentation.jsp
APIReference
https://connect4.healow.com/apps/jsp/dev/r4/fhirClinicalDocumentation.jsp
RateLimits
https://raw.githubusercontent.com/api-evangelist/eclinicalworks/refs/heads/main/rate-limits/eclinicalworks-rate-limits.yml
Other Resources
DeveloperPortal
https://connect4.healow.com/apps/jsp/dev/signIn.jsp
Scheduling
https://connect4.healow.com/apps/jsp/dev/r4/fhirSchedulingDocumentation.jsp
CapabilityStatement
https://raw.githubusercontent.com/api-evangelist/eclinicalworks/refs/heads/main/conformance/eclinicalworks-healow-fhir-capabilitystatement.json
ServiceBaseURLs
https://connect4.healow.com/apps/api/v1/fhir/activated_clinical_endpoints
SignUp
https://connect4.healow.com/apps/jsp/dev/signUp.jsp
Contact
https://raw.githubusercontent.com/api-evangelist/eclinicalworks/refs/heads/main/mailto:devsupport@healow.com