Who Pays Your Medical Bills After a Car Accident?

One of the more confusing things about a car accident, especially if it wasn’t your fault, is finding out that the other driver’s insurer isn’t paying your doctor. There is a gap between when treatment is billed and when a claim is resolved, and something has to cover it. This guide explains what, and what may be owed back later.

Why do I pay upfront when it wasn't my fault?

The at-fault driver is legally responsible for the harm they cause, but their insurer generally pays when the claim resolves, through a settlement or a court judgment. That can take months, and providers bill on a faster schedule. The Insurance Information Institute (III) explains that bodily injury liability covers the costs of injuries and death that a driver causes to others. It is the cover that responds to your claim against them, not an account your doctor can bill each month. For how long that wait can be, see how long a settlement takes.

Who pays my medical bills in the meantime?

Usually one or more of these, depending on your policies:

• Your health insurance pays providers under your plan, subject to your deductible and copays.
• Medical payments coverage (MedPay) or PIP. The III describes these as reimbursing medical expenses for injuries to you or your passengers, and says they are required in many states. See MedPay vs health insurance if you have both.
• Your own uninsured or underinsured motorist cover, if the at-fault driver has no insurance or too little. The III describes it as reimbursing you when the cause is an uninsured motorist or a hit-and-run. See uninsured driver accidents.
• A provider that waits. Some providers agree to be paid from a settlement. Ask for the terms in writing.
• You, out of pocket, with the costs claimed later. Keep every receipt.

Who pays what, and when?

Payer	What it covers	When it pays	Is it repaid from a settlement?
At-fault driver’s bodily injury liability	Injuries to others (the III)	When the claim resolves	Not applicable; this is the claim
Your health insurance	Treatment under your plan	As bills come in	Often yes; plan terms decide
Your MedPay or PIP	Your and your passengers’ medical costs (the III)	After you claim, under your policy	Varies by policy and state
Your uninsured or underinsured motorist cover	Your losses when the other driver has none or too little (the III)	After you claim, under your policy	Check the policy
Provider waiting on the claim	Treatment, with payment deferred	After the settlement	Yes; paid from the settlement if agreed
You	Whatever the above do not cover	At the time	You may claim these costs later

Does it work differently in a no-fault state?

Yes. The III says that in true no-fault states, PIP is mandatory first-party cover that pays through your own insurer even if the other driver caused the crash. It lists medical fees, lost wages and funeral costs, subject to state dollar limits. The III counts twelve states and Puerto Rico with no-fault laws, and explains that tort thresholds limit when you can sue for pain and suffering. The first line is your own insurer, not the other driver’s. See no-fault states for how that changes the order.

What is subrogation, and why might I owe some of it back?

Subrogation is, in Cornell’s Legal Information Institute’s words, the process where one party assumes the legal rights of another. When an insurer pays a claim, it can take over the policyholder’s right to pursue the at-fault party and recover what it paid.

In practice this shows up as a request for repayment when you settle. A health plan or other payer that covered your bills may ask to be repaid from your settlement. Whether it can, and how much, depends on your plan’s terms, your state’s law and what you settle for. A few steps help:

• Ask each payer in writing whether it claims reimbursement, and for an itemized figure.
• Check that the bills it lists relate to the accident and not to other care.
• Ask whether it will reduce its claim. Sometimes it will, but do not assume so.
• Keep what you are told. Do not agree to anything you do not understand.

Separately, the collateral source rule, which Cornell describes as a tort doctrine, keeps an award from being reduced just because a third party such as an insurer paid. State law varies on how this plays out, so it is no reason to ignore a repayment request.

What if I don't have health insurance?

It does not mean treatment is out of reach. Ask the provider’s billing office about payment plans and financial assistance, and whether they will wait for the claim to resolve. Some providers do treat patients this way, and some do not. Get any agreement in writing and ask what happens if the claim pays less than the bill.

If you are on a government health program, ask that program how it treats accident-related bills before you settle. Rules for those programs are their own.

How should I handle the bills while a claim is open?

• Give your auto insurer and your health plan the accident date and claim number.
• Keep every bill, explanation of benefits and receipt. Our expense tracker lists them in one place.
• Do not ignore a bill because a claim is open. Unpaid bills can go to collections.
• Do not accept a quick settlement before you know what the bills will total. See accepting the first settlement offer.

Do I need a lawyer to deal with medical bills and liens?

Not always. A small bill and one payer is often manageable alone. Large bills, several payers asking for repayment, or a disputed claim are where advice is more often sought. Our guide on whether you need a lawyer sets out both sides. For the wider claim, see dealing with insurance and what affects your settlement.