Who pays your medical bills after a car accident

The at-fault driver's insurer usually pays your medical bills last, not first. In a no-fault state, your own personal injury protection (PIP) pays first, up to its limit. Elsewhere the first payer is usually your health insurance or your medical payments coverage, and the at-fault driver's liability insurer settles the injury claim later, in a lump sum, out of which several earlier payers may be repaid. The order depends on your state, your policies and, if you are on Medicare or Medicaid, federal and state recovery rules.

Why the bills arrive before anyone decides who is at fault

A hospital bills the day you leave, but a liability claim against the other driver cannot be valued until you have finished treating, which can take months. The other driver's insurer will not pay a bill it has not yet decided it owes, and it will not decide until it has the police report, your records and, often, your recovery. So the bills have to be paid by someone else in the meantime: you, your health plan, your auto policy or the provider's patience.

That gap is the reason auto policies carry first-party medical coverage at all. PIP and medical payments coverage pay promptly without waiting for a fault finding. Everything else in this article is about who fills that gap, in what order, and who gets repaid when the fault claim finally settles.

The usual order of payment

There is no single national order. This table shows the pattern in most places, with the caveats that follow.

Two cautions. First, the coverage you actually have decides this, not the table, and the "other insurance" clauses in each policy can reorder it. Second, your health plan may refuse to pay a bill that a no-fault policy is supposed to pay first. Providers learn this quickly, which is why a hospital's billing office will ask for your auto insurance information at admission.

Our guide to personal injury protection explains what PIP includes, and no-fault vs at-fault states explains the state-by-state split.

No-fault states: PIP pays first

In a no-fault insurance state, your own auto policy's PIP pays medical bills regardless of who caused the crash, up to your limit. Each state defines the benefit differently, so the examples below show the range, not a rule.

Florida. The 2025 Florida Statutes require PIP of $10,000 in medical and disability benefits, plus a $5,000 death benefit. Medical benefits cover 80 percent of reasonable expenses for medically necessary services, and the full benefit applies only if the injured person receives initial services and care within 14 days of the accident (Fla. Stat. 627.736). Two consequences follow. A Florida driver with a serious injury exhausts $10,000 quickly, and the 20 percent not paid by PIP falls to health insurance or the patient. Waiting two weeks to see a doctor can forfeit the benefit.

New Jersey. New Jersey lets drivers choose whether their health insurance or their auto policy's PIP pays first for accident injuries. The Department of Banking and Insurance's auto guide describes the "health care primary" option as a way to save on premium, advises people to find out whether their health plan will cover auto accident injuries, and says Medicare and Medicaid do not offer that option (New Jersey DOBI auto insurance guide). The guide also says that under the standard policy, even a driver who chooses a lower PIP limit is covered for medically necessary treatment of up to $250,000 for permanent or significant injury. If you chose health-primary years ago, check what your policy declarations page says today.

Michigan. After the 2019 reform, Michigan drivers choose among PIP medical limits of $50,000 (an option for people with Medicaid), $250,000, $500,000 or unlimited, and our explainer on michigan's no-fault reform explained walks through the choice and the fee schedule that limits what providers can charge.

In every no-fault state, PIP is first-party coverage you buy, so a hospital that bills your PIP insurer is billing a contract you hold. Check how your state treats a person who does not own a car, such as a passenger or pedestrian, since the paying policy then may be someone else's or a state assigned-claims plan.

MedPay and health insurance: the two that overlap

Outside no-fault states, the two most common early payers are your MedPay, if you bought it, and your health insurance. MedPay pays medical expenses for you and your passengers regardless of fault, usually with limits that are small compared with serious injuries. Many policies let MedPay pay copays and deductibles that your health plan leaves behind.

Health insurance is usually the larger and more sustained source. It pays at the rates your plan negotiated with in-network providers, which is often far below the amount a hospital bills. The trade-off is that your plan may later demand repayment from your settlement. Our article on MedPay or health insurance: who pays first after a crash covers the choice of which to use first and how deductibles and network rules complicate it.

One practical point: telling a hospital that it must bill the auto insurer first, when your policy does not provide for that, can delay payment and lead to bills in your name. Ask your auto insurer in writing which of your coverages applies and in what order, then give the billing office that answer.

The at-fault driver's liability coverage

The other driver's bodily injury liability coverage is the main source of money for pain and suffering, lost wages and future care, but it pays by settlement or judgment, once, and capped by that driver's policy limits. It does not generally pay bills as they arrive. Two limits matter:

• The other driver's limits. If the settlement value of your injuries exceeds those limits, the shortfall is your problem unless you have underinsured motorist coverage or the other driver has assets.
• Fault. In a state that reduces recovery for your own share of fault, or bars recovery at a threshold, the liability payment shrinks accordingly. See our guide to how fault is determined.

If the at-fault driver has no insurance at all, your uninsured motorist coverage, where sold, may fill part of that role, and your PIP, MedPay and health plan carry the early bills.

Who gets repaid: subrogation, plan terms and liens

A settlement is not all yours. Several parties who paid your bills early may have a right to repayment from it, and the right comes from different places.

Subrogation. A payer that covered your bills can take over your right to recover them from the person who caused the harm. subrogation explained: how your insurer recovers your deductible covers the basics, and a later stage can be a lawsuit by the insurer against the at-fault driver. Whether your auto insurer may recover what its MedPay or PIP paid from your settlement, rather than only from the at-fault driver, varies by state and by policy wording.

Health plan reimbursement. Plan terms usually require you to repay the plan from a recovery. Whether that is enforceable turns on the type of plan. The U.S. Supreme Court held in US Airways, Inc. v. McCutchen (2013) that where an ERISA plan sues to enforce a reimbursement lien, the plan's terms govern, and equitable defenses such as the common-fund or double-recovery rules cannot override clear plan language (Cornell LII summary of the opinion). ERISA generally covers employer-sponsored plans; a plan that is fully insured, as opposed to self-funded, is also subject to state insurance law, and some states limit reimbursement rights. Which kind of plan you have is a question for your employer's benefits office, and whether your plan can take its share is a question for a licensed attorney in your state.

Hospital liens. Many states let a hospital file a lien against injury recoveries. California's Hospital Lien Act, as one example, gives a hospital that provides emergency and ongoing services to an accident victim a lien on the damages recovered, limited so it is satisfied out of 50 percent of the money due under a settlement or judgment after prior liens (Cal. Civ. Code 3045.4, current as of January 2026). The same section makes an insurer that pays the injured person after receiving the hospital's notice, without satisfying the lien, liable to the hospital for it. That is why insurers often ask about liens before they issue a check. Other states differ in whether liens exist and how big they can be.

Letters of protection. A medical provider may agree to wait for payment from your settlement under a letter of protection, sometimes at full billed charges. You remain responsible for the bill. Our article on Billed vs paid medical bills: collateral source rule and LOPs explains how the billed amount and the paid amount differ and why that matters at settlement.

Medicare and Medicaid

If you are on Medicare, federal secondary payer rules put the auto insurance first. CMS says Medicare generally cannot pay for accident-related care when no-fault or liability insurance has paid or can reasonably be expected to pay, and in its July 2025 Medicare Secondary Payer booklet it states that these provisions take priority over state law or an insurance policy's contents (CMS, Medicare Secondary Payer booklet MLN006903). The federal definition of no-fault insurance covers coverage "sometimes called medical payments coverage, personal injury protection, or medical expense coverage" (42 CFR 411.50), so MedPay and PIP count.

Medicare can still step in so you are not left unpaid. The booklet explains that when liability, no-fault or workers' compensation coverage does not pay promptly, Medicare may make a conditional payment, which it can recover. For liability insurers, the federal regulation defines "promptly" as within 120 days after the earlier of the date a claim is filed or the date the service was furnished. The contractor that handles liability and no-fault recoveries seeks repayment from the patient or the patient's attorney when a settlement, judgment or other payment is made. Practically, a Medicare beneficiary who settles should expect a repayment demand and should resolve it before the settlement money is spent. Our article on medicare and car accident medical bills: who pays first covers the process, and Settlement paperwork: releases, liens and Medicare reimbursement covers how the paperwork fits together.

Medicaid works differently, and state law sets many details. Under the Supreme Court's 2022 decision in Gallardo v. Marstiller, a state Medicaid program may seek reimbursement from the portion of a settlement allocated to future medical care, not just past care (Cornell LII, syllabus). A Medicaid enrollee who settles should ask their attorney and the state agency what the state claims before the case closes.

A worked example: what is left of a $50,000 settlement

The numbers below are made up to show the arithmetic. Say Dana, in a state that is not no-fault, is hit by a driver who ran a red light. She breaks her wrist and needs surgery and therapy.

• The providers bill $62,000.
• Her health plan's negotiated amount is $21,000. The plan pays $17,500, and Dana's deductible and coinsurance come to $3,500.
• Her own MedPay, a $5,000 limit, pays the $3,500 Dana owes under her plan.
• The at-fault driver carries $50,000 in bodily injury limits. Dana's lost wages and pain make the claim worth more than that, so she settles for the $50,000 limit.

Now the repayments. Say her health plan is self-funded and has a reimbursement clause for $17,500. Her MedPay policy has a reimbursement clause for $3,500. Her lawyer takes one-third, $16,667.

The plan may agree to reduce its share by part of the legal fees, or a state rule may do so, and some policies waive MedPay reimbursement. Those adjustments are the negotiable part, which is why checking the plan's terms before a settlement matters. Dana also may have underinsured motorist coverage that pays beyond the $50,000, which would change the picture.

How to avoid paying twice

1. Give every provider your auto and health information at the first visit. Tell them which one you believe is primary and ask them to confirm.
2. Ask your auto insurer for its coverage order in writing. Get the PIP or MedPay limits and any reimbursement clause.
3. Open the claim promptly. PIP and MedPay often have notice or treatment deadlines, such as Florida's 14-day treatment window.
4. Keep every explanation of benefits and bill. Payments from three sources are easy to lose track of.
5. Do not ignore a collection notice while a claim is pending. Tell the collector the bill is part of an auto claim and ask the provider to hold it, and put the request in writing.
6. Before settling, ask each payer for a written statement of what it paid and what it claims. Include health plans, MedPay, hospitals and, if applicable, Medicare or Medicaid.
7. Do not sign a release before the lien picture is clear. A release usually ends the claim for good.
8. Ask whether a payer will reduce its claim. Many will, particularly when the settlement is a policy limit.

Questions to ask

• To your auto insurer: "Which of my coverages pay medical bills for this crash, in what order, and what are the limits? Does my MedPay or PIP have a reimbursement clause?"
• To your health plan: "Is this plan fully insured or self-funded? Do you claim reimbursement from an auto settlement, and how is the amount calculated?"
• To the hospital billing office: "Which insurer did you bill, and will you hold the account while the auto claim is open? Have you filed a lien?"
• To a Medicare or Medicaid enrollee's counsel: "What has the program paid, and what is the repayment process?"

For a serious injury or a settlement with several lienholders, a licensed attorney in your state is the right place for specifics, and your state insurance department can answer general coverage questions at no cost.

Common questions

Does the other driver's insurance pay the hospital directly?

Usually not as the bills arrive. The liability insurer pays through a settlement or judgment, and the money goes to you, who then deals with lienholders. A hospital with a lien statute may be paid out of the settlement directly, as in the California example above.

Should I give the hospital my health insurance card?

In most tort states, yes, unless you have been told your auto coverage must pay first. Using health insurance gets the negotiated rate on the bill. Be aware your plan may later seek repayment, so keep records, and see our article on MedPay or health insurance: who pays first after a crash.

What if the at-fault driver has no insurance?

Your PIP or MedPay, if you have them, and your health insurance pay the early bills. Uninsured motorist bodily injury coverage, if you bought it and your state offers it, can compensate you for the injury claim itself.

Do I have to use my PIP before my health insurance?

In states where PIP is required and primary, generally yes, and a health plan may refuse to pay until PIP is exhausted. New Jersey is a notable exception, because it lets you elect health insurance as primary. Check your policy and your state's rule.

I am on Medicare. Who is billed first?

The auto insurer's coverage, where it applies, is billed first, and Medicare may pay conditionally if that coverage does not pay promptly. Expect Medicare to seek repayment out of any settlement.

Key takeaways

• The at-fault driver's liability insurer usually pays last, by settlement, so your own coverages and health plan carry the early bills.
• In no-fault states PIP pays first up to its limit; Florida's 2025 statute sets $10,000 at 80 percent with a 14-day treatment window, and New Jersey lets you choose health insurance as primary.
• MedPay, health plans, hospitals, Medicare and Medicaid may each have a claim on your settlement, so the check is smaller than the headline number.
• Medicare treats PIP, MedPay and liability insurance as primary and can recover conditional payments; Medicaid can reach settlement money allocated to future care.
• Get each payer's reimbursement claim in writing before you settle, and ask whether it will reduce it.