NextGen API integration guide: Enterprise vs Office, and the three programs
- Access model
- Tiered programs; distributor terms for vendors
- Developer program
- NextGen API Developer Program
- Certified FHIR access
- FHIR R4 (read-only patient access)
- Scheduling write
- Confirm with NextGen (Enterprise API)
The short answer
NextGen sells two different EHRs, and an app built for one won't automatically work on the other. Its FHIR APIs are read-only. Read-write work on NextGen Enterprise goes through proprietary APIs under the API Distributor program, with fees that depend on scope.
The flavors to tell apart
| Flavor | What it means for an integration |
|---|---|
| NextGen Enterprise (NGE) | Ambulatory EHR and PM for larger groups. Patient Access FHIR APIs plus proprietary Enterprise APIs (NGE 5.9.0+). |
| NextGen Office | Cloud EHR for smaller practices (5.0+). FHIR R4 with SMART App Launch and Bulk FHIR. |
How access works
NextGen runs three programs:
- Patient Access API Program. Self-register on the developer portal for FHIR credentials.
- Open Access Developer Program. For NextGen clients building apps for their own use. No fees to develop or deploy.
- API Distributor Program. For third-party vendors. Submit the onboarding form, sign the API terms with distributor terms, build in the sandbox, then contact NextGen's API partners team before production. Clients grant and manage access to adopted apps in NextGen's API Client Portal.
Deeper Enterprise documentation sits behind onboarding.
What the APIs cover
| Job | Path on NextGen |
|---|---|
| Patient clinical read | FHIR R4 (DSTU2 on older Enterprise), read-only |
| SMART launch and bulk export | NextGen Office |
| Read and write on Enterprise | Proprietary Enterprise APIs (NextGen cites 800+ routes) |
| Scheduling write | Not confirmed in NextGen's public pages; confirm during onboarding |
What it costs
NextGen states no charge to develop or use sandboxes under the Distributor program. Fees may apply by data scope, version, data categories and read vs read-write, with payment not expected until general release. NextGen states no charge for GET routes on certified technology.
Our take
Ask "Enterprise or Office?" in the first call; it decides your whole plan. For Enterprise, start the Distributor paperwork early and get read-write pricing in writing before you commit to a write-heavy product.
FAQ
Does NextGen have a FHIR API?
Yes. NextGen Enterprise and NextGen Office both expose FHIR R4 APIs for patient access, which are read-only.
Can an app built for NextGen Office run on NextGen Enterprise?
Not automatically. They're different products with different API surfaces.
Does NextGen charge for API access?
Under the Distributor program, fees may apply depending on scope and read vs read-write. NextGen states GET routes on certified technology are free.
Sources
Public pages, accessed 11 Oct 2026: NextGen APIs · NextGen developer program · NextGen Enterprise regulatory API information · NextGen API terms
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