Mat Osmanski
Mat leads Firely’s consulting practice, overseeing and mentoring the consulting team as they help clients successfully implement Firely’s FHIR-based products. In this role, he builds and maintains the consultancy framework, continuously optimizing team workflows and processes to ensure high-quality, scalable delivery. Mat works closely with Firely’s board to define and refine consulting strategy, while also fostering strong client relationships. He supports product implementations through project management, integration design, product configuration, custom plugin development and deployment best practices. Mat also contributes to product development by recommending new offerings and enhancements to existing solutions.
A technical guide to the Prior Authorization API under CMS-0057-F
The Prior Authorization API is named in the singular, which is misleading. What CMS requires is…
A technical guide to the Payer-to-Payer API under CMS-0057-F
The Payer-to-Payer API looks like an export problem. Build a bulk endpoint, respond to requests from…
How to plan a FHIR server deployment: stakeholders, questions, and architecture
When a FHIR deployment goes wrong, the failure usually traces back to something decided, or not…
A technical guide to the Provider Access API under CMS-0057-F
For payers working through CMS-0057-F, the Provider Access API is the one that tends to get…
A technical guide to the Provider Directory API under CMS-0057-F
Of the five APIs required under CMS-0057-F, the Provider Directory API is the most straightforward to…
Three things CMS-0057-F adds to the Patient Access API (and what each one requires)
If your organization was subject to the original Interoperability and Patient Access Final Rule (CMS-9115) rule,…
Payer self-assessment: is your CMS-0057-F solution actually ready?
With less than nine months to January 2027, the question for most payers is no longer…
CMS-0057-F in 2026: Where you should be and what comes next
The first hard deadlines under CMS-0057-F have passed. As of January 1, 2026, payers were required…
Stand-alone FHIR consulting: How Firely helps teams make the right FHIR decisions
FHIR is now a foundational part of modern healthcare interoperability. In my experience, getting real value…
How to implement FHIR-based prior authorization in your existing systems
FHIR-based prior authorization (PA) is reshaping how payers handle one of the most resource-intensive processes in…
Data mapping to FHIR: What you need to know before starting
Updated April 22, 2026 Mapping healthcare data to FHIR is one of the most important and…