Most providers know HIPAA. Most know Medicare billing rules. Almost none know ERISA — and that knowledge gap costs them money every year.
ERISA, the Employee Retirement Income Security Act of 1974, is a federal law governing employer-sponsored benefit plans. It has almost nothing to do with the clinical practice of medicine and almost everything to do with getting paid by the majority of your commercially insured patients. More than 60% of Americans with employer-sponsored insurance are covered by self-insured ERISA plans, where the employer — not an insurance company — actually bears the financial risk of claims.
Understanding ERISA doesn't require a law degree. It requires understanding three things: what it governs, what rights it creates for providers, and how to use those rights to your advantage.
What ERISA Governs
ERISA governs self-insured employer health plans — plans where the employer sets aside funds to pay claims directly, typically using an insurance company as a third-party administrator (TPA) to process claims. When you see a claim where the payer is technically Cigna or Aetna but the plan is administered "on behalf of" XYZ Corporation, that's an ERISA plan.
ERISA plans are exempt from most state insurance regulations — including many state laws that protect providers. Your state's prompt pay law? Doesn't apply to ERISA plans. Your state's anti-balance billing law? May not apply to ERISA plans. Your state's external appeal right? May not apply to ERISA plans.
This exemption from state law cuts both ways. ERISA's federal claims and appeal procedures apply instead — and they contain important protections that self-insured plan administrators frequently violate.
ERISA's Claims and Appeal Procedures
ERISA requires self-insured plans to provide detailed written explanations for benefit denials, specific timeframes for making benefit determinations (generally 30-60 days for pre-service claims), access to a full and fair internal appeal process, and access to information used in making the coverage decision.
When a self-insured plan violates these procedural requirements — issues a denial without adequate explanation, misses the determination deadline, or fails to provide appeal rights — the provider has grounds for a federal court challenge. More practically, these procedural violations are often the leverage needed to get a coverage or payment dispute resolved without litigation.
Using ERISA Against Recoupment Demands
When a self-insured plan sends you a recoupment demand, ERISA's procedural requirements apply to that demand just as they apply to initial benefit determinations. The plan must provide: the specific basis for the recoupment, the clinical or billing criteria supporting the determination, and the appeal rights available to you.
A recoupment demand letter that simply states "we overpaid these claims, please return $47,000" without specific claim-by-claim justification is procedurally deficient under ERISA. Responding with a written request for the complete claim-by-claim analysis, the specific criteria used to determine overpayment, and the formal appeal procedures — citing the applicable ERISA regulations — often results in the plan either abandoning the demand or significantly reducing it.
Federal Court Jurisdiction
ERISA disputes are heard in federal court, not state court. This matters because: federal courts apply ERISA's fiduciary standards to plan administrators, the discovery process in federal court can be used to obtain plan documents and claims adjudication records, and federal court jurisdiction means state anti-assignment laws that some plans try to use against providers may not apply.
Many providers settle ERISA disputes they could win simply because they don't know the federal court option exists. Consulting a healthcare attorney with ERISA expertise when facing a significant self-insured plan recoupment demand is often cost-effective — the attorney can quickly assess whether ERISA's procedural violations give you leverage worth using.
