Quick answer: Adonis is an AI orchestration layer on Epic and athenahealth. Infinx is a patient-access and claim-status platform (prior auth, eligibility, Claim Status Agent) with portal and TPA execution and human review. Pick Adonis for revenue intelligence on Epic or athena. Pick Infinx when prior auth and scheduled status rechecks are the purchase.
Inclusion criteria: Head-to-head on deployment model, EHR fit, payer coverage, and whether you must replace a clearinghouse or BPO.
Honest limitations: Substrate does not replace a clearinghouse, EHR, coder, or patient-billing platform. It automates post-submission AR. Claim status includes denial root-cause analysis (eligibility, records, medical necessity, wrong route), not just a 277 code or an 835 variance. Clinical edge cases still go to staff. Coding, CDI, and patient-facing billing are out of scope.
At a glance
Where Adonis wins
- Health-system intelligence on Epic Connection Hub
- athenahealth practices that want marketplace orchestration
- Denial trends and payer behavior without buying a PA platform
Where Infinx wins
- Prior authorization as the primary pain
- Portal and TPA claim status with scheduled rechecks
- Buyers who need an access vendor, not an Epic intelligence layer
Also consider Substrate
Substrate ARC is an agentic denial and reconciliation platform for provider groups, hospitals, and health systems. Substrate combines all your systems and data sources across clearinghouses, payer portals, EMRs, lockboxes and more, to comprehensively support your billing team and enable you to work every single denial. Consider Substrate if:
- You need end-to-end denial management, from triage through remediation, and appeal filing, not just phone dispositions
- Your payer mix is portal-heavy (Medicare, Medicaid MCOs, specialty commercial)
- You want structured PM writeback and audit trails across status, appeals, and posting
- You prefer agentic automation over manual execution or offshoring and outsourcing (Substrate is listed in the Anthropic Connector Directory and publishes a public claim-status MCP.)
- You want to keep billing in house but make it fast and cost effective