Challenge
OAuth2 tokens expire and break sync
Agnotic approach
We implement robust refresh-token handling with proactive renewal and alerting so connections never silently drop.
DrChrono
DrChrono Integration Services
DrChrono has one of the most developer-friendly REST APIs in ambulatory health IT. We build real integrations on it — OAuth2, webhooks, and FHIR R4 — for clinics and startups that need clean clinical data flow.
REST APIOAuth2 + WebhooksFHIR R4HIPAA-Ready
Trusted by global innovators
What DrChrono integration involves
DrChrono is a cloud EHR, practice-management, and medical-billing platform known for a genuinely developer-friendly, well-documented REST API. It exposes resources for patients, appointments, clinical notes, lab orders, documents, and billing, plus OAuth2 authorization, webhook event subscriptions, and ONC-certified FHIR R4 endpoints for patient access.
Because the API is public and coherent, DrChrono is a favorite for digital-health startups — but production still requires registering an API application, handling per-provider OAuth2 tokens with refresh, respecting rate limits, and dealing with the difference between the rich proprietary REST surface and the narrower certified FHIR surface. We build against both and reconcile the model.
Architecture
See how we structure DrChrono integrations with OAuth2, webhooks, and reliable data sync across clinical and billing resources.
Common failure modes
DrChrono integration pitfalls — and how we handle them
Challenge
Rate limits throttle high-volume clinics
Agnotic approach
We build request budgeting, backoff, and batching so busy practices stay in sync without hitting caps.
Challenge
Webhook deliveries can be missed
Agnotic approach
We pair webhooks with periodic reconciliation polls so no event is permanently lost.
Challenge
REST vs FHIR data models diverge
Agnotic approach
We map both surfaces to one canonical model so your app sees consistent data regardless of source endpoint.
DrChrono APIs & Standards We Work With
We build against DrChrono's exact surface — the REST resources, the event system, and the certified FHIR endpoints.
DrChrono REST API
The documented REST resources for patients, appointments, clinical notes, lab orders, documents, and billing — the rich proprietary surface most builds rely on.
OAuth2 Authorization
Per-provider OAuth2 flows with access and refresh tokens, scoped access, and secure token storage so each connected practice stays isolated.
Webhooks & Events
Webhook subscriptions for appointment, patient, and clinical events so your app reacts in near real time instead of polling.
FHIR R4 Endpoints
DrChrono's ONC (g)(10)-certified FHIR R4 resources for standardized, patient-access clinical reads where interoperability matters.
Billing & Documents
Charge, claim, and clinical-document handling wired to the right patient and appointment, with clean reconciliation.
Sync & Rate-Limit Layer
A resilient sync layer with backoff, retry, and rate-limit awareness so high-volume clinics stay reliably in sync.
Where it runs
DrChrono workflows we integrate
Digital-health apps
Startup apps that read and write DrChrono clinical data via OAuth2.
Patient engagement
Reminders, intake, and portals driven by live appointment events.
Telehealth
Virtual visits with documentation synced back to the DrChrono chart.
RPM & device data
Wearable and device readings attached to the patient record.
Analytics platforms
Clinical and operational analytics built on DrChrono extracts.
Billing automation
Automated charge capture and claim status tracking.
A developer-friendly API, shipped to production
DrChrono's REST API is a pleasure to build on — but production reliability is what separates a demo from a live clinic integration.
6–12 wk
Typical DrChrono integration timeline
R4
Certified FHIR version supported
100%
Webhook + reconciliation reliability focus
Compliance-First Healthcare App Development Services Backed by Global Standards
15-Minute Scoping Call01
HIPAA
Health Insurance Portability and Accountability Act
Protect PHI with privacy-first architecture, encrypted storage and transmission, strict access controls, and traceable audit logs.
02
GDPR
General Data Protection Regulation
Implement lawful consent flows, data minimization, retention controls, and secure processing for sensitive health data.
03
FHIR
Fast Healthcare Interoperability Resources
Enable standardized health data exchange across apps, care teams, and systems through robust FHIR-ready APIs.
04
HL7
Health Level Seven International
Support enterprise-grade interoperability with HL7-based integrations for records, events, and clinical messaging workflows.
05
HITRUST
Health Information Trust Alliance
Align security programs to healthcare-specific control and risk management practices trusted by providers and ecosystem partners.
06
HITECH
Health Information Technology for Economic and Clinical Health Act
Design with breach notification readiness, digital record safeguards, and operational controls that support regulated care programs.
07
SaMD
FDA Software as a Medical Device
Plan software quality, traceability, and documentation pathways for products that may require SaMD review and submission.
08
MDR (EU)
Medical Device Regulation (European Union)
Prepare EU market-ready processes for risk classification, evidence tracking, and lifecycle governance under MDR expectations.
09
SAMHSA
Substance Abuse and Mental Health Services Administration
Apply confidentiality controls and consent-aware sharing models for behavioral and mental health data experiences.
Standards we build against
DrChrono integration standards
FHIROAuth2RESTHIPAAHITECH
Our Process
How a DrChrono build ships
App registration, OAuth2, and webhook wiring run in parallel with clinical mapping so your DrChrono integration lands on schedule.
1.
Discovery & Scope
We map the REST resources and events you need and confirm whether the proprietary API, FHIR, or both fit your workflows.
API-first design
2.
App Registration & Sandbox
We register the API application, wire OAuth2 with refresh, and validate scopes and rate limits in the sandbox.
OAuth2 wired
3.
Build & Test
We build the REST and webhook integrations with retry and reconciliation, validating against sandbox and pilot-practice data.
Event-driven
4.
Go-Live & Monitoring
Phased rollout with webhook-delivery monitoring, token-refresh health, and failed-sync alerting.
Always monitored
Surface at a glance
DrChrono integration surface
How we think about each DrChrono surface — method, use, and notes.
| Surface | Method | Typical use | Notes |
|---|---|---|---|
| REST API | REST + OAuth2 | Patients, appts, notes, billing | Rich, well-documented proprietary surface. |
| Webhooks | Event subscriptions | Real-time updates | Requires reliable receiver + retry handling. |
| FHIR R4 | REST + OAuth2 | Certified clinical reads | ONC (g)(10) scope; narrower than REST API. |
| Billing | REST | Charges, claims | Reconcile carefully with your ledger. |
DrChrono's public docs make it fast to prototype; production reliability is where the real work is.
Featured case study
Read Case StudyLera Health: compliant women's health platform
Related proof of the API-first, compliant delivery a DrChrono build needs: for Lera Health we shipped a privacy-first data layer and event-driven workflows end to end — the same OAuth2, webhook, and reconciliation discipline we bring to developer-friendly EHRs.
Why Partner With Us
15-Minute Scoping CallWhy teams choose Agnotic for DrChrono
We turn DrChrono's clean API into a production integration with the reliability guarantees clinics need.
Startup-Speed Delivery
Lean, milestone-driven cycles built for founder timelines — a working DrChrono integration in weeks, not quarters.
Compliance-First by Default
HIPAA-ready token handling, PHI isolation, and BAA-covered infrastructure designed in from sprint one.
Dedicated Product Team
A team that owns the integration end to end — engineering, QA, and reliability — with one point of accountability.
Clinical Domain Depth
We've built compliant clinical products, so notes, orders, and billing flows are wired correctly the first time.
Our relevant experience
Real DrChrono integrations, not just familiarity
Frequently Asked Questions
Because the API is public and well-documented, a focused DrChrono integration typically runs 6–12 weeks. Scope, the number of resources, and webhook reliability requirements drive the range. We can prototype quickly and then harden for production.
Ready to build on DrChrono?
Tell us the resources and events you need. We'll return a realistic plan with app registration, OAuth2, and webhook reliability built in.
contact@agnotic.com
Partnerships
contact@agnotic.com