UnitedHealthcare and Aetna ERISA Plans vs. Pharmacy Lien: What PI Attorneys Need to Know

James Wong — Founder & Pharmacist, LienScripts | July 29, 2024 | 8 min read

UnitedHealthcare and Aetna administer many of the largest self-funded employer health plans in California — all governed by ERISA. When these plans pay for a member's injury treatment, their subrogation claims are backed by federal law and cannot be defeated by California's made-whole doctrine. Here is what PI attorneys need to know.

This post is for informational purposes only and does not constitute legal advice.

The ERISA Problem in PI Settlement Planning

UnitedHealthcare and Aetna are two of the largest health insurers in the United States. In California, both administer substantial books of large employer group health plans — many of which are self-funded and governed by the Employee Retirement Income Security Act (ERISA). When your client is covered by one of these plans and the plan paid for injury-related treatment, you are dealing with a federal subrogation framework that operates differently from California's state law rules.

For personal injury attorneys, the critical difference is this: California's made-whole doctrine does not apply to ERISA plans. That means UnitedHealthcare or Aetna can enforce the plan's reimbursement clause for the full amount paid — without regard to whether your client's settlement fully compensates their damages. Understanding how this works, and how pharmacy liens operate independently, is essential to protecting your client and your firm.

[!KEY] ERISA self-funded plans administered by UnitedHealthcare and Aetna are not subject to California's made-whole doctrine — these plans can demand full reimbursement under federal law, and distributing funds without satisfying the lien exposes the attorney to personal liability.

How ERISA Governs These Plans

ERISA is a federal statute that regulates employer-sponsored benefit plans. Under ERISA's preemption provisions, state laws that relate to employee benefit plans are generally superseded by federal law. This includes California's made-whole doctrine, which prohibits a state-regulated health insurer from asserting subrogation if the plaintiff was not fully compensated.

For ERISA-governed plans:

• The plan document controls the terms of subrogation and reimbursement.
• State law defenses — including the made-whole doctrine — are generally unavailable.
• The insurer can bring a civil enforcement action in federal court under ERISA § 502(a)(3) to recover from improperly distributed settlement proceeds.
• Courts have allowed such actions to proceed against attorneys personally when funds were distributed without satisfying the plan's lien.

UnitedHealthcare and Aetna both administer large numbers of ERISA plans. If your client's employer is a large company, a national retailer, a school district, or a public entity, there is a significant probability that their health coverage is an ERISA plan.

Identifying Whether the Plan Is Self-Funded and ERISA-Governed

The key indicator is the plan's funding mechanism:

Fully insured plans are underwritten by the insurer. The insurer bears the financial risk. These plans are generally subject to state insurance regulation, including California law.

Self-funded plans are funded by the employer. The employer bears the financial risk. An insurer like UnitedHealthcare or Aetna administers claims but does not underwrite them. These plans are governed by ERISA and exempt from state insurance regulation.

To confirm the plan type:

• Request the Summary Plan Description from the employer's HR department.
• Look for references to ERISA, "administrative services only," or the employer's trust.
• Look for the absence of California Department of Insurance or Department of Managed Health Care references.
• The plan booklet may also state explicitly: "This plan is not subject to state insurance regulation."

If you are uncertain, have the client call the member services number on their insurance card and ask directly: "Is this plan self-funded by my employer?"

UnitedHealthcare's Subrogation and Recovery Process

UnitedHealthcare's subrogation recovery operations are handled largely through Optum, its health services subsidiary. Once Optum identifies a potentially third-party-liable claim, it sends a notice of interest and requests information about the nature of the injury and the existence of a third-party claim.

At resolution, Optum presents a formal demand for the full amount the plan paid for treatment of the covered injury. Because ERISA preempts state law defenses, your negotiation leverage is more limited than with state-regulated plans.

What you can still negotiate:

• Common fund doctrine. Federal courts have recognized that ERISA fiduciaries should bear a proportionate share of the attorney's fees and costs that created the recovery fund. Request a pro-rata fee reduction.
• Disputed liability. If liability was genuinely contested and the case settled at a discount, Optum may agree to a proportionate reduction.
• Inclusion errors. Review the claim list carefully. Confirm that only injury-related claims are included — pre-existing conditions and unrelated treatments should be excluded.

Aetna's Recovery Process

Aetna's Special Investigations and Subrogation unit handles recovery claims. Aetna (now part of CVS Health) operates similarly to UnitedHealthcare for ERISA plans: it enforces the plan's reimbursement clause and has access to federal court remedies under ERISA § 502(a)(3).

Aetna also uses third-party recovery vendors to manage high-volume subrogation portfolios. You may receive correspondence from a recovery firm acting on Aetna's behalf rather than directly from Aetna. Respond promptly to these notices regardless of the sender.

[!TIP] Even without the made-whole doctrine, you can still negotiate ERISA lien reductions — request a pro-rata common fund fee reduction and audit the claim list to remove pre-existing conditions and unrelated treatments.

Attorney Liability Under ERISA

This point cannot be overstated. If you distribute settlement proceeds without satisfying a known ERISA plan lien, the plan can sue you in federal court. Courts have interpreted ERISA § 502(a)(3) to allow equitable relief against attorneys and their clients who received and distributed plan funds without satisfying the plan's claim.

Unlike a simple breach of contract, ERISA liability is federal in nature and carries the risk of full disgorgement of the distributed funds, plus fees. Do not close a file with a known UnitedHealthcare or Aetna ERISA lien without a written release.

[!KEY] ERISA liability for distribution without a written release is personal to the attorney — the plan can sue you directly for the full amount distributed, not just the lien amount, making a written release from UnitedHealthcare/Optum or Aetna a non-negotiable precondition before any disbursement.

Pharmacy Liens and ERISA Plans: No Overlap

A pharmacy lien from a lien-based provider like LienScripts does not overlap with UnitedHealthcare's or Aetna's subrogation claim — even in ERISA cases.

Here is why: UnitedHealthcare and Aetna's subrogation interest covers what the ERISA plan paid for the member's care. If the plan's pharmacy benefit paid for medications, those payments are part of the plan's recoverable amount.

A pharmacy lien arises from a completely separate transaction: the pharmacy extended credit directly to the patient, and neither UnitedHealthcare nor Aetna ever paid for those medications. There is no insurance reimbursement involved. The pharmacy's claim is contractual, not a subrogation right, and it must be resolved through a direct negotiation with the lien administrator.

In practice:

• Verify that the medications on the pharmacy lien were never submitted to or paid by the health plan.
• If the client used both plan-covered pharmacy benefits and a lien-based pharmacy, the two sets of medications are separate — one is in UnitedHealthcare/Aetna's demand, one is in LienScripts' lien.
• Resolve each independently and document each resolution separately.

[!KEY] A pharmacy lien and an ERISA plan subrogation claim are legally and factually distinct — the ERISA plan's demand covers what the plan paid; the pharmacy lien covers what the plan never paid — and treating them as the same obligation is an error that leads to either overpayment to the ERISA plan or improper distribution without resolving the pharmacy lien.

Practical Steps for ERISA Subrogation Cases

1. Identify ERISA plan status at intake. Confirm whether the client's employer plan is self-funded.
2. Never assume the made-whole doctrine applies. Build your strategy around federal ERISA rules from the start.
3. Respond to every notice. UnitedHealthcare/Optum and Aetna track non-responses and will escalate.
4. Request a complete claim list. Audit for non-injury-related claims, duplicates, or dates of service outside the injury period.
5. Negotiate fee reductions. Common fund principles apply in federal courts and most ERISA administrators will honor them.
6. Obtain a written release. Do not distribute until you have written confirmation that the plan's lien is satisfied.

Key Takeaway

UnitedHealthcare and Aetna administer large ERISA plans for California employers. When these plans pay for injury treatment, California's made-whole doctrine offers no protection — only federal ERISA law applies. Pharmacy liens from lien-based providers operate independently: they reflect medications never paid by the health plan, arise from separate contractual arrangements, and are resolved through their own process. Managing ERISA subrogation with precision and obtaining written releases before distribution is not optional — it is the only way to protect your client and your firm.

Related Resources

• Pharmacy Services for Personal Injury Clients: How It Works — How pharmacy liens provide $0 upfront medication access for PI patients