Real-time
Two-way sync
Changes in Bill or NextGen Healthcare instantly reflect in both systems. No stale data, no manual imports.
Accounting and finance ⇄ Business productivity
Bill to NextGen Healthcare integration — real-time, two-way sync
Keep Bill and NextGen Healthcare in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
- SOC 2 and 6 other compliance frameworks
- POC with real engineers in minutes
Adopted by fast-scaling companies moving mission-critical data in real time
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Migrated from MuleSoft
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Migrated from Celigo
Migrated from Heroku Connect
Migrated from Matillion
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Migrated from Fivetran
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Migrated from Celigo
Why teams connect Bill and NextGen Healthcare
Connect the financial records in Bill with the work happening in NextGen Healthcare, so both stay current without exports or copy-paste.
Bill holds the financial truth: who the customers are, what they were billed, what they paid. NextGen Healthcare is where part of the day-to-day work happens, and that work often involves the same customers and transactions. Without a live connection, the two drift apart, and people end up answering questions from stale copies.
Stacksync keeps Payments, Chart of Accounts, Bank Accounts, Vendor Credits and Credit Memos in Bill and Patients, Appointments, Encounters, Providers in NextGen Healthcare in sync, bi-directionally and in real time. Whatever records NextGen Healthcare keeps and whatever events it produces, the overlap with Bill is mapped field by field, and a change on either side shows up on the other within seconds.
There is no middleware to build, no API rate limits to babysit, and no nightly job that leaves the morning running on yesterday's data.
Common use cases
- 01 Write Vendors created during ERP onboarding into BILL so new payees are ready to pay without manual re-entry.
- 02 Read Payments and payment status into a reconciliation database once bills are marked paid in BILL.
- 03 Sync patient demographics into a CRM for engagement and intake workflows.
- 04 Push appointment schedules to reminder and communication tools and write confirmations back.
Common sync patterns
Where NextGen Healthcare collects payments or triggers charges: events land in Bill
Payment and charge activity flows into Bill as it happens, so the books reflect reality without manual reconciliation.
Where NextGen Healthcare tracks people or companies: one identity
A customer's details updated in either system update the other, so finance and the rest of the business stop maintaining two versions of the same customer.
Where NextGen Healthcare handles customer conversations: billing context in view
Front-line teams see invoice and payment status from Bill next to the customer they are helping, without logging into the finance system.
What you can sync between Bill and NextGen Healthcare
Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.
| Bill objects | NextGen Healthcare objects | How this pairing syncs | |
|---|---|---|---|
| Chart of Accounts GL accounts used to code bills and invoices; typically mastered in the accounting system and written into BILL for consistent coding. | Medications & Allergies Clinical list data read via standardized FHIR resources for care coordination. | Chart of Accounts is specific to Bill and Medications & Allergies to NextGen Healthcare — each maps to any object or custom field on the other side. | |
| Bank Accounts Funding and deposit accounts; read to reconcile payments and posted transactions against the ledger. | Lab Results Result data read for patient-facing portals and analytics. | Bank Accounts is specific to Bill and Lab Results to NextGen Healthcare — each maps to any object or custom field on the other side. | |
| Vendor Credits and Credit Memos AP and AR adjustments applied against bills and invoices; synced so balances stay accurate on both sides. | Insurance / Coverage Payer and eligibility data reconciled with billing and clearinghouse systems. | Vendor Credits and Credit Memos is specific to Bill and Insurance / Coverage to NextGen Healthcare — each maps to any object or custom field on the other side. | |
| Bills Accounts-payable amounts owed to vendors, with bill line items; read and created via /v3/bills and pulled incrementally by filtering on createdTime/updatedTime. | Charges & Billing Practice-management financial data synced for revenue-cycle analytics. | Bills is specific to Bill and Charges & Billing to NextGen Healthcare — each maps to any object or custom field on the other side. | |
| Vendors Payee master records; synced two-way with vendor/supplier tables in an ERP or accounting system so new payees don't have to be re-keyed. | Patients Demographic records synced to CRMs and engagement tools for outreach and intake. | Vendors is specific to Bill and Patients to NextGen Healthcare — each maps to any object or custom field on the other side. | |
| Invoices Accounts-receivable invoices sent to customers; created and read via /v3/invoices to keep billing status aligned with the ERP or CRM. | Appointments Schedule data read and written for reminders, self-scheduling, and capacity reporting. | Invoices is specific to Bill and Appointments to NextGen Healthcare — each maps to any object or custom field on the other side. |
How changes propagate between Bill and NextGen Healthcare
Each direction of the sync is driven by what the source system can signal and what the destination accepts — detection, delivery, and expected latency below.
Bill NextGen Healthcare Sub-second propagation
DetectionBill notifies Stacksync of record changes through webhook events. Webhook event subscriptions (POST /v3/subscriptions) for bills, vendors, payments, invoices, and bank accounts, with polling on.
DeliveryEach detected change is written to NextGen Healthcare through its API, with automatic retries and rate-limit backoff.
NextGen Healthcare Bill Interval-based propagation
DetectionStacksync polls NextGen Healthcare for changes on an incremental schedule, reading only records changed since the previous pass. Polling, typically filtering on last-updated timestamps.
DeliveryEach detected change is written to Bill through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Bill: 20,000 requests per developer key per hour; login (POST /v3/login) capped at 200/hour; maximum 3 concurrent requests per developer key per organization. Spend & Expense API is a separate token at 60 calls/token/minute.
- NextGen Healthcare: Subject to the platform's API rate limits and healthcare data-access agreements.
What ships with Bill ⇄ NextGen Healthcare
Connect Bill and NextGen Healthcare for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Bill–NextGen Healthcare connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Bill or NextGen Healthcare data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
At scale
Event queues
Handle millions of events per minute without losing a single Bill or NextGen Healthcare record.
Observability
Monitoring
Track your Bill ⇄ NextGen Healthcare sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Bill and NextGen Healthcare.
How the Bill and NextGen Healthcare connectors work
Bill
- Integration surface
- REST/JSON (BILL v3 Connect API)
- Authentication
- Session-based: POST /v3/login with username, password, organizationId, and a developer key (devKey) returns a sessionId that is passed with the devKey as headers on every subsequent call; OAuth is available for partner/embedded apps
- Change detection
- Webhook event subscriptions (POST /v3/subscriptions) for bills, vendors, payments, invoices, and bank accounts, with polling on createdTime/updatedTime list filters as the fallback
- Capabilities
- read · write · webhooks
- Rate limits
- 20,000 requests per developer key per hour; login (POST /v3/login) capped at 200/hour; maximum 3 concurrent requests per developer key per organization. Spend & Expense API is a separate token at 60 calls/token/minute.
NextGen Healthcare
- Integration surface
- REST API, including FHIR-based endpoints published through NextGen's developer API program
- Authentication
- OAuth 2.0
- Change detection
- Polling, typically filtering on last-updated timestamps; no general-purpose webhook surface
- Capabilities
- read · write
- Rate limits
- Subject to the platform's API rate limits and healthcare data-access agreements.
How it works
How to connect Bill to NextGen Healthcare — three steps, no code
Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.
- 01
Connect your apps
Authenticate Bill and NextGen Healthcare with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Bill
connected
NextGen Healthcare
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Bill and NextGen Healthcare objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.
objects · Bill ⇄ NextGen HealthcareCustomers 12,480Sales Orders 8,213Invoices 5,902Items 1,344 - 03
Map fields
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Bill NextGen HealthcareCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Bill and NextGen Healthcare integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Bill and NextGen Healthcare: authenticate both systems, choose the objects to sync (such as Bill's Chart of Accounts and Bank Accounts), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Yes — Stacksync ships production-grade connectors for both Bill and NextGen Healthcare. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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Change detection on Bill: Webhook event subscriptions (POST /v3/subscriptions) for bills, vendors, payments, invoices, and bank accounts, with polling on createdTime/updatedTime list filters as the fallback. On NextGen Healthcare: Polling, typically filtering on last-updated timestamps; no general-purpose webhook surface. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
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On the Bill side: Payments, Chart of Accounts, Bank Accounts, Vendor Credits and Credit Memos, plus custom fields where Bill exposes them. On the NextGen Healthcare side: Patients, Appointments, Encounters, Providers. Stacksync auto-detects both schemas and converts types between the two systems.
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Yes. Each object mapping can be bidirectional or restricted to a single direction (both systems accept writes). Read-only mirrors, one-way pushes, and full two-way sync can be mixed in the same integration.
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Common patterns for Bill and NextGen Healthcare: Where NextGen Healthcare collects payments or triggers charges: events land in Bill; Where NextGen Healthcare tracks people or companies: one identity; Where NextGen Healthcare handles customer conversations: billing context in view. Payment and charge activity flows into Bill as it happens, so the books reflect reality without manual reconciliation.
SECURITY
Security teams trust Stacksync
As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.
SOC 2 Type II
ISO 27001
HIPAA BAA
GDPR
CCPA
CSA STAR
DPF US-EU-UK-CH
→ SECURITY WITH BENEFITS
SSO & SCIM
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Alerts
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Secure connection options
Securely connects to your systems with:
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