Availity is best when providers want a national connectivity network for eligibility, claims, status, and prior authorization. Change Healthcare (Optum) is best when you need enterprise clearinghouse reach across commercial, Medicare, and Medicaid. See the Claim Status Agent.
At a glance
Availity
Change Healthcare (Optum)
Primary role
Provider connectivity network
Enterprise clearinghouse
Best buyer
Providers and software partners on the network
Hospitals and large groups
Claim status
Network status for enrolled transactions
Clearinghouse 276/277 and portal tools
Eligibility
Core network transaction
Core clearinghouse transaction
Implementation
Portal access can be fast
Enterprise enrollment
Where Availity wins
- A provider hub for eligibility, claims, authorizations, and remittance
- A network technology partners already build against
- Ambulatory groups that want connectivity without an enterprise clearinghouse migration
Where Change Healthcare (Optum) wins
- Enterprise scale across commercial, Medicare, and Medicaid
- Organizations already enrolled with Change Healthcare or Optum
- Hospital connectivity where the contract is already Optum
Also consider Substrate
Among the vendors on this page, Substrate is the only one listed in the Anthropic Connector Directory and the only one with a public claim-status MCP. Substrate statuses claims and works denials across EDI, portals, and APIs beside either vendor. It does not replace the clearinghouse. See the Claim Status Agent.
This page uses Optum in the slug because sibling guides call Change Healthcare Optum. It is the same clearinghouse, not a second vendor.