Every auto file closes twice. The first close is the settlement with the liability carrier or the UIM insurer. The second is the fight over how much of that money the client actually keeps. First-party medical coverage, MedPay in most states and PIP in no-fault jurisdictions, sits at the center of that second fight, because the same carrier that advanced a few thousand dollars in early treatment now wants it back off the top.
Handled loosely, MedPay reimbursement quietly erodes the client's recovery and, worse, comes out of the contingency fee when the numbers are reconstructed at disbursement. Handled deliberately, it is one of the more winnable reductions on the ledger. The doctrine that governs it, the made-whole rule, is old, but carriers count on plaintiff lawyers treating the reimbursement demand as fixed rather than negotiable.
MedPay is not a lien, and the distinction matters
Adjusters send reimbursement letters that read like statutory liens. Most are not. A MedPay reimbursement right is contractual, created by the subrogation clause in the client's own policy, and it lives or dies on that language plus the equitable doctrines your state grafts onto it. That framing changes the leverage. A statutory hospital lien has to be litigated on the statute's terms. A contractual reimbursement clause is subject to the made-whole doctrine, the common-fund doctrine, and, in a growing number of states, outright statutory bars on MedPay subrogation.
Start by pulling the declarations page and the full policy, not the adjuster's summary. Confirm the coverage actually paid, the amount, and the exact clause the carrier relies on. If the policy is silent on the made-whole rule, the default in most jurisdictions is that the insured must be fully compensated before the carrier collects a dime.
The made-whole argument, applied
The made-whole doctrine says the insurer recovers nothing until the client has been fully compensated for the loss. In the typical limits case, that condition is never met. When a client with a six-figure damages picture settles for a $50,000 liability policy and a $25,000 UIM layer, the client has been made whole only in the carrier's imagination. Document the gap. A short damages memo, specials plus a defensible general-damages range against the total available coverage, is the exhibit that turns a full reimbursement demand into a token one.
Carriers push back by pointing to policy language they say abrogates the default rule. Read it closely. Many clauses that purport to give the carrier a first-dollar priority are enforceable only if they say so in unambiguous terms, and courts in several states construe ambiguity against the drafter. Where the policy is genuinely clear, the made-whole argument narrows but rarely disappears, because you still have the common-fund contribution to deploy.
Make the carrier pay for the recovery
The common-fund doctrine is the second lever. The MedPay carrier did no work to create the settlement. You did. Under the common-fund rule, a passive beneficiary that recovers from a fund created by another's effort must contribute a proportional share of the attorney's fees and costs. In practice that means the reimbursement figure gets reduced by your contingency percentage before anything is paid, and sometimes by a share of case costs on top of that.
Put it in writing early. When the reimbursement letter arrives, respond with a position letter that asserts both the made-whole condition and the common-fund reduction, and asks the carrier to identify the policy language it believes overrides either. Silence from the adjuster is common, and a documented request that goes unanswered is useful later if the reduction is ever contested.
Watch the state line
MedPay and PIP subrogation is intensely jurisdictional. A handful of states prohibit MedPay subrogation entirely by statute or regulation. Others bar it in practice through anti-subrogation case law. New Jersey's Appellate Division, for instance, has closed off Med Pay subrogation against third-party tortfeasors, and several no-fault states restrict PIP reimbursement to a narrow set of circumstances. Before you concede a single dollar, confirm whether your jurisdiction allows the claim at all. A reimbursement demand that is void under state law should be answered with a citation, not a check.
The coordination question also changes with the coverage stack. When MedPay overlaps a health plan, a UIM layer, and provider balances, sequence the reductions so each one is calculated against the correct base. Resolving the MedPay claim before you know the ERISA plan's position can leave money on the table. We cover the broader ordering problem in our liens and settlement coverage, and the coverage-stacking mechanics in our auto accidents reporting.
Build the reduction into intake
The firms that keep the most for clients treat MedPay as a task, not an afterthought. Flag first-party medical coverage at intake, log every reimbursement demand to the file the day it arrives, and calculate the made-whole and common-fund positions before the settlement check clears. The reduction you document contemporaneously is the reduction you can defend if a carrier, or later a client, questions the disbursement. For the appellate backdrop on how courts treat these first-party reimbursement fights, our case law and settlements desk tracks the decisions worth reading.
None of this is exotic. It is ledger discipline plus two well-worn equitable doctrines. But the difference between a full reimbursement demand honored on autopilot and a reduced one negotiated on the record is real money, and it is the client's money first.