Anthem in Federal IDR Disputes
Anthem appears as the non-initiating party in 61,551 disputes. Its profile is the most evenly split of any payer in Table 9: 46% self-funded against 30% fully insured.
What CMS Reports
| Plan type | Disputes | Share | Which process it points to |
|---|---|---|---|
| Self-funded or partly self-funded employer plan | 28,328 | 46% | Federal — ERISA preempts state regulation |
| Fully insured group plan | 18,452 | 30% | A state process may apply |
| Individual market | 361 | 1% | Depends on the state |
| Federal Employees Health Benefits carrier | 1,695 | 3% | Federal |
| No issuer response | 12,714 | — | Plan type not established |
Source: CMS, Federal IDR Supplemental Tables, Q3 and Q4 2024, Table 9 — “Top 10 Non-Initiating Parties”. “Non-initiating party” is the Departments' own term for the party a dispute is brought against; it carries no finding about conduct, and the counts measure volume of disputes rather than anything else. CMS publishes these tables here.
Federal Process or State Process
That split is the point. Where a payer sits at 90% self-funded — as BCBS Arizona does in the same table — the route is effectively settled before you look at the claim. At 46% self-funded and 30% fully insured, Anthem is the payer where guessing costs the most — roughly three claims in ten involve a plan a state can regulate, and roughly five in ten involve one it cannot. ERISA preempts state regulation of self-funded employer plans, so those go federal regardless of the state; the fully insured share is where a state pathway may exist. With Anthem the plan type has to be established per claim rather than assumed from the payer name.
Why this decides so much: filing into the wrong process ends the dispute on eligibility rather than on the merits. About 19% of disputes initiated nationally in 2024 were found ineligible, and eligibility was challenged by the other side in 41% to 43% of disputes in the second half of that year. What eligibility turns on.
Before you file against Anthem
- Establish the plan type from the plan document or summary plan description before choosing a route — the card alone will not tell you.
- Note that 12,714 Anthem disputes were recorded with no issuer response, so the plan type may not be established for you.
- Confirm the 30-business-day open negotiation notice date, since the four-business-day filing window runs from the 31st business day after it.
What the Federal Medians Say Your Claims Are Worth
Volume tells you who is in the room. What a decided dispute is worth depends on the service and the size of the claim, not on the payer: CMS reports the median prevailing offer at 5.53× the plan's own qualifying payment amount on claims under $100, falling to 1.73× at $10,000 and above, and it varies by specialty from 2.26× to 16.75×.
The medians for your specialty · The full federal dataset · What this costs