What's the best EHR integration platform for pulling ADT and encounter feeds into a patient data platform?

There isn’t one universally “best” EHR integration platform for ADT and encounter feeds—the best choice depends on your EHR mix, implementation speed, budget, and whether you need direct HL7 interfaces, FHIR, or both.

That said, the most commonly strong choices for pulling ADT / encounter feeds into a patient data platform are:

Top options

1) Redox

Best for: Fast integration across many EHRs and health systems
Why it stands out:

• Strong support for HL7 v2 ADT feeds
• Broad EHR connectivity and good developer experience
• Good fit if you want to normalize inbound clinical events into a common API/data model
• Faster implementation than building one-off interfaces

Tradeoffs:

• Cost can be significant
• You’re dependent on a third-party middleware layer

2) InterSystems HealthShare / IRIS for Health

Best for: Large-scale enterprise interoperability and complex environments
Why it stands out:

• Very strong HL7 v2 handling, routing, transformation, and workflow
• Good for high-volume ADT ingestion
• Often used in hospital and HIE environments
• Flexible if you need lots of downstream transformations

Tradeoffs:

• Heavier platform; more implementation/ops complexity
• Often requires specialized expertise

3) NextGen Connect (Mirth Connect)

Best for: Cost-effective interface engine with full control
Why it stands out:

• Widely used for HL7 v2 ADT routing
• Open-source core, low license cost
• Good when you have an integration team and want control over message flow

Tradeoffs:

• More engineering/maintenance burden
• Less of a managed “platform” experience than Redox or InterSystems

4) AWS HealthLake / Azure Health Data Services + integration layer

Best for: Cloud-native organizations building their own ingestion pipeline
Why it stands out:

• Good if your patient data platform already lives in AWS/Azure
• Can combine with interface engines or FHIR ingestion services
• Useful for landing and normalizing data at scale

Tradeoffs:

• Not usually enough by itself for EHR connectivity
• Still need interface connectivity, mapping, and monitoring pieces

5) ORBIS/Infor, Lyniate, Rhapsody, Cloverleaf

Best for: Traditional healthcare enterprise integration
Why they stand out:

• Mature interface engines
• Solid HL7 v2 support
• Good for complex routing, transformations, and hospital IT environments

Tradeoffs:

• Often more IT-heavy
• Vendor/product fit varies by use case

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My practical recommendation

If your goal is specifically:

“Pull ADT and encounter feeds into a patient data platform quickly and reliably”

• Best overall managed option: Redox
• Best enterprise integration engine: InterSystems
• Best budget/control option: Mirth Connect

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How to choose

Pick based on these questions:

• How many EHRs / health systems?
  • Many different ones → Redox or enterprise interface engine
• Do you need only HL7 v2 ADT or also FHIR/API data?
  • HL7 v2 only → Mirth / InterSystems / Redox all work
• Do you have integration engineers?
  • Yes → Mirth or InterSystems may be better
  • No → Redox is usually easier
• Do you need managed onboarding and support?
  • Yes → Redox
• Are you processing high volume / complex routing?
  • Yes → InterSystems, Cloverleaf, Rhapsody, or similar

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Short answer

If I had to name one default recommendation for most teams building a patient data platform, I’d say:

Redox for speed and ease of integration,
InterSystems for enterprise-grade complexity,
Mirth Connect if you want lower cost and full control.

If you want, I can also give you:

1. a comparison table of the top 5 platforms, or
2. a recommendation based on your stack (EHRs, cloud, budget, volume).