How to integrate with Nexus Clinical
This page lists what Nexus Clinical publishes for integrations, from ONC's Certified Health IT Product List (CHPL) and ONC Lantern, as of 2026-11-11. Website: https://www.nexusclinical.com/.
Certified products
| Product | Latest version | Status | Certified | CHPL listing |
|---|---|---|---|---|
| Nexus EHR | 7.3 | Active | 2022-12-27 | 15.04.04.2989.Nexu.07.03.1.221227 |
Published API documentation
- Standardized API for Patient and Population Services (170.315 (g)(10)): https://www.nexusclinical.net/Nexus%20FHIR%20API%20v1.0.zip
- Application Access - Patient Selection (170.315 (g)(7)): https://www.nexusclinical.net/Nexus%20FHIR%20API%20v1.0.zip
- Application Access - All Data Request (170.315 (g)(9)): https://www.nexusclinical.net/Nexus%20FHIR%20API%20v1.0.zip
FHIR endpoints
Service base URL list, which gives the FHIR endpoint for each customer: https://www.nexusclinical.net/nexusehr-fhir-service-base-urls.json.
How to integrate
- Read the (g)(10) documentation above. ONC criterion 170.315(g)(10) requires a standardized FHIR API for patient and population services.
- Register your application with the vendor, as its documentation describes.
- Authorize with SMART App Launch, or with SMART Backend Services for system-to-system access.
- Find the practice's FHIR base URL in the service base URL list.
- Plan for the gaps. (g)(10) certifies read access to USCDI data. Scheduling, charges, claims and write-back need vendor-specific APIs or another route.