Product · Integrations

Connect to any EHR — legacy or modern

One platform, one integration, every system. Overlay bridges the fragmented healthcare data landscape so your team doesn't have to.

Certified and tested integrations

Overlay connects natively to the EHRs that run most of American healthcare — with no custom build required on your end.

Epic
Enterprise EHR
Certified
Oracle Health (Cerner)
Enterprise EHR
Certified
Allscripts
Ambulatory EHR
FHIR R4
athenahealth
Cloud EHR
FHIR R4
eClinicalWorks
Ambulatory EHR
FHIR R4
NextGen
Ambulatory EHR
HL7 v2
MEDITECH
Hospital EHR
HL7 v2
Greenway Health
Ambulatory EHR
HL7 v2

Built on open healthcare standards

Overlay speaks the languages healthcare already uses — no proprietary formats, no vendor lock-in.

HL7 FHIR R4

Fast Healthcare Interoperability Resources

The modern standard for healthcare data exchange. Overlay's API is fully FHIR R4-compliant, with support for SMART on FHIR for app authorization.

HL7 v2

HL7 Version 2 Messaging

The most widely deployed healthcare messaging standard. Overlay parses and routes HL7 v2 ADT, ORM, ORU, and MDM messages from legacy systems.

C-CDA

Consolidated CDA Documents

Structured clinical documents — Continuity of Care Documents, discharge summaries, referral notes — ingested and made queryable through Overlay's API.

REST

Modern REST APIs

Every Overlay capability is accessible via a clean, well-documented REST API. JSON payloads, OAuth 2.0 authentication, full sandbox environment included.

SFTP

Secure File Transfer

For systems that still exchange data via file drop — labs, pharmacies, imaging centers. Overlay monitors SFTP endpoints and processes files automatically.

DICOM

Medical Imaging (Roadmap)

Radiology and imaging integrations via DICOM are on our roadmap. Talk to us about early access if your use case includes diagnostic imaging workflows.

We build custom connectors

If your EHR, lab system, or practice management tool isn't on this list, our team can scope and build a custom integration. Most custom connectors are production-ready within two to four weeks.

Ready to connect your systems?

Book a technical walkthrough and we'll map out exactly which connectors apply to your environment.