OncoEMR (Flatiron Health) API
No open API. A FHIR surface exists as a paid per-tenant add-on with docs behind a registration wall; Flatiron states FHIR APIs may require additional fees. Everything else runs through Flatiron-managed HL7 interfaces with an approved vendor list. No SDKs or public webhooks.
Frequently asked questions
OncoEMR (Flatiron Health) scores F on the API Report Card. No open API. A FHIR surface exists as a paid per-tenant add-on with docs behind a registration wall; Flatiron states FHIR APIs may require additional fees. Everything else runs through Flatiron-managed HL7 interfaces with an approved vendor list. No SDKs or public webhooks.
Without a usable official API, teams fall back on manual exports, file drops, or one-off vendor integrations. The other option is an unofficial API layer like Supergood that automates the authenticated web app directly. Site terms may apply to any integration approach, and how they apply is a determination each team makes for itself.
OncoEMR by Flatiron Health is the leading cloud EHR purpose-built for community oncology, chemo ordering with NCCN templates, staging, treatment plans, and practice operations. Roche-owned since 2018 ($1.9B); the EHR also feeds Flatiron's real-world-evidence data business.
Healthcare / Oncology EHR, community oncology practices and cancer centers.
4,700+ providers, 220+ community oncology practice partners, 1,600+ sites of care, 5M+ patient records; active 2026 partnerships (Abbott, Natera, Tempus, DeepScribe).
Regimens/chemo orders, dosing, staging, labs, molecular-profiling results, treatment plans, scheduling, practice operations.
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.