About Us

Behind
the OS

Before OnyxOS was a platform, it was our point of view — that health data should be useful, not just exchanged. We're engineers, standards authors, and healthcare operators, and we've spent the last decade turning that belief into something our customers can run. The rest of this page is how we got here, and where we're taking it next.

Home / Company / About
Decorative Image
About Onyx

From data exchange to data intelligence.

Data Intelligence

OnyxOS is the payer intelligence platform that turns connected health data into intelligence across risk adjustment, quality and HEDIS, care management, and payment integrity — for 50+ health plans covering 1 in 6 Americans.

"Connected data is the biggest unused asset in American healthcare. Closing the gap between data that exists and data that works is why we built Onyx."

Susheel Ladwa
CEO, Onyx Technology LLC
Our Story

We built Blue Button 2.0. OnyxOS is what we built next.

Onyx was built by the architects of modern payer interoperability — the team that built CMS Blue Button 2.0, authored the HL7 Da Vinci PDex standard that CMS-0057 is built on, and created the federal health data infrastructure that serves tens of millions of Americans today. 

Connected health data has always been at the core of everything we build. OnyxOS takes that foundation further — getting clinical data from every provider, making it usable through a longitudinal patient record, and activating it across the workflows that drive payer performance: risk adjustment, quality and HEDIS, care management, and payment integrity.

That's what OnyxOS is today — and why we say "From data exchange to data intelligence." It's our history, and our direction. 

2019 – 2022

Onyx acquires InteropX
Strategic Expansion
The acquisition of InteropX expanded Onyx's execution depth and delivery capacity — bringing together combined teams with deep expertise in large-scale payer interoperability, IT transformation, and AI-driven clinical data initiatives. Together, the combined platform moves health plans from compliance to intelligence, turning interoperability infrastructure into operational advantage across risk, quality, care, and payment.
BY THE NUMBERS

Where OnyxOS runs today

50+
Payer Organizations
Commercial Plans
Regional health plans
Blue Cross Blue Shield
State Medicaid programs
25+
State Medicaid Programs
Nearly half of all US states, each with distinct compliance requirements, dual eligible populations, and state-specific mandates.
1 in 6 Americans Supported
55M+
covered by health plans running on OnyxOS
60M+
Americans on CMS Blue Button 2.0
The largest FHIR implementation in the world — built by Onyx
20+
HL7 FHIR & C-CDA Standards Authored
Including Da Vinci PDex, the HL7 FHIR standard, and federal health data platforms serving 30M+ patients
Jointly built on Microsoft Azure
Enterprise-grade cloud, security, and scalability from day one

Ready to see the platform in action?

Join 50+ payers who have turned interoperability infrastructure into operational intelligence.