When Your Client Has Multiple Insurance Sources: Pharmacy Lien Coordination

Amar Lunagaria — Co-Founder & Chief Pharmacist, LienScripts | July 25, 2024 | 9 min read

Many PI clients have MedPay, health insurance, PIP, and potential UM/UIM coverage simultaneously. Each source has different rules, priority, and subrogation implications. Getting the sequencing wrong creates subrogation claims that reduce the client's net recovery. Here is the coordination framework for attorneys managing multiple insurance sources.

When Your Client Has Multiple Insurance Sources: Pharmacy Lien Coordination

In a substantial PI case, the client may have multiple sources of coverage available for prescription costs:

• MedPay from their auto policy
• PIP if they are in a no-fault state
• Health insurance through an employer or marketplace
• UM/UIM coverage if the at-fault driver is uninsured or underinsured
• Medicare or Medicaid if the client is a beneficiary

Navigating these sources simultaneously — deciding which pays first, which pays second, how subrogation rights attach, and how a pharmacy lien fits in — is one of the more complex administrative tasks in PI practice. Getting the sequencing wrong creates subrogation claims and attorney fee complications that reduce the client's net recovery.

[!KEY] Using health insurance for accident-related prescriptions is not automatically the best choice — an ERISA plan's subrogation claim may cost more than the pharmacy lien negotiated at settlement, making the pharmacy lien the better option for the client's net recovery.

This article provides the coordination framework.

The Correct Priority Order for Pharmacy Coverage

The general priority order for accident-related prescription coverage:

1. PIP (No-Fault States First)

In Florida, New York, Michigan, and other no-fault states, PIP is mandatory first-party coverage. PIP pays before any other source — before health insurance, before MedPay, before the liability claim. In no-fault states, route prescriptions through PIP first, up to the PIP limit.

See our PIP guide for state-by-state mechanics.

2. MedPay

MedPay is primary over health insurance for accident-related expenses. It pays after PIP (in no-fault states) and before health insurance. Route prescriptions through MedPay after PIP is exhausted (or from the start in non-no-fault states), up to the MedPay limit.

3. Health Insurance

After PIP and MedPay are exhausted, health insurance becomes primary. Health insurance covers medications subject to the plan's formulary, prior authorization rules, cost-sharing (copays, deductibles, coinsurance), and coordination of benefits.

The subrogation concern: Using health insurance for accident-related prescriptions typically triggers the health plan's subrogation rights. Many health plans will assert a claim against the liability settlement for amounts they paid. ERISA plans (employer-sponsored plans governed by federal law) often have the strongest subrogation rights and the fewest state-law limitations on recovery. Non-ERISA plans (individual marketplace plans, state-regulated plans) are subject to state made-whole doctrines and anti-subrogation rules.

4. Pharmacy Lien

A pharmacy lien operates outside the insurance system entirely. It is not a payment by an insurer — it is a deferred-payment arrangement between the patient and the pharmacy. There is no subrogation trigger because no insurer is paying.

A pharmacy lien is particularly valuable as the backstop when PIP and MedPay are exhausted and using health insurance would trigger a large ERISA subrogation claim. In that scenario, routing prescriptions through a pharmacy lien instead of health insurance:

• Avoids triggering ERISA subrogation
• Keeps the prescription costs as damages in the liability claim
• Defers payment to settlement rather than using cash or insurance that creates a recovery obligation

Why Skipping Health Insurance Is Sometimes the Right Choice

The counterintuitive advice: for certain clients, it may be better to use a pharmacy lien rather than routing prescriptions through health insurance, even if health insurance is available.

[!KEY] The ERISA subrogation analysis must be done before routing any prescriptions through the employer health plan — once the plan pays, its subrogation right attaches and cannot be undone; the pharmacy lien decision should be made at intake, not after months of ERISA-covered fills.

The reason is ERISA subrogation math. Consider:

• Client has an ERISA employer health plan with robust coverage
• Accident-related prescriptions total $30,000 over 18 months
• Health insurance pays, subject to the plan's copays and deductibles
• ERISA plan asserts 100% subrogation ($30,000 minus procurement costs)
• After the made-whole analysis and negotiations, ERISA plan recovers $18,000

Alternatively, with a pharmacy lien:

• Pharmacy lien covers the $30,000 in prescriptions
• No ERISA subrogation claim triggered
• Attorney negotiates the pharmacy lien at settlement
• Net result: client pays the agreed lien amount, but there is no additional ERISA recovery to satisfy

Whether this produces a better outcome for the client depends on the specific ERISA plan's subrogation posture, the negotiability of the pharmacy lien, and the total settlement amount. The analysis is fact-specific.

The point: Using health insurance is not automatically the best choice for the client. The attorney should evaluate the subrogation implications before routing prescriptions through the health plan.

Coordination of Benefits (COB) Rules

When a patient has multiple health insurance plans (e.g., their own employer plan and a spouse's employer plan), Coordination of Benefits rules determine which plan pays first (primary) and which pays second (secondary). COB rules follow NAIC model standards:

• Birthday rule: For dependents covered by two plans, the plan of the parent whose birthday falls earlier in the year is primary
• Active employment rule: The plan from the employee's current employer is primary over plans from a former employer or a spouse's employer

COB does not directly apply to pharmacy liens (which are not insurance), but it affects how much the health insurance pays — which in turn affects whether using health insurance (and triggering subrogation) is worth it.

Tracking Multiple Sources at Settlement

Create a source-by-source accounting when preparing the settlement disbursement:

Totaling the subrogation and lien obligations before disbursing ensures the client's net recovery is accurately calculated.

[!TIP] Evaluate the health plan's subrogation posture before routing any accident-related prescriptions through health insurance — for ERISA plans with strong subrogation rights, a pharmacy lien as the backstop often produces a higher net recovery for the client.

The Pharmacy Lien as the Strategic Backstop

The most elegant function of a pharmacy lien in a multi-source case is as the strategic backstop: it fills coverage gaps without creating new subrogation complications.

When PIP exhausts, when MedPay runs out, when using health insurance would trigger an ERISA claim larger than the subrogation savings — the pharmacy lien covers prescriptions and positions those costs as damages in the liability claim. It resolves at settlement through negotiation rather than through a subrogation recovery process.

For attorneys managing complex multi-source cases, this flexibility is valuable. A single pharmacy lien enrollment at intake covers any prescription needs throughout the case, regardless of how the other insurance sources interact.

[!KEY] A pharmacy lien enrollment at intake is the most flexible insurance coordination strategy available — it activates only when other sources exhaust, avoids triggering any subrogation rights, and positions prescription costs as liability damages rather than insurer-paid obligations subject to recovery.

LienScripts coordinates pharmacy lien enrollment with any existing coverage situation. Contact LienScripts to discuss the coordination framework for your cases.

Related Resources

• Using MedPay for Medications After a Car Accident
• PIP and Pharmacy in No-Fault States
• Health Insurance Subrogation vs. Pharmacy Liens
• Medicare Conditional Payments and Pharmacy Liens