Who Pays Medical Bills During a California Injury Claim

You are in physical therapy twice a week, the hospital billing office has started calling, and nothing about your claim is moving fast enough to help. The other driver was clearly at fault, so it feels like their insurer should be paying as the bills arrive. It will not.

Here is how medical bills actually get handled while a California injury claim is open, which source pays first, and what each one takes back out of your settlement at the end.

The at-fault insurer pays once, at the end

A liability claim is not a payment plan. The at-fault driver's insurer is not buying your treatment week by week; it is buying a release of your entire claim, one time, when the case resolves. Until then it has no obligation to send money to your doctor.

Two consequences follow. Your bills are your problem in the meantime, which is why the gap gets filled by coverage you already have. And the longer you treat, the larger the number that has to be paid back out of whatever you recover, which is part of why an early offer looks bigger than it is. Our post on why the first settlement offer is almost always a lowball covers that math.

Where the money comes from while you treat

In practice, four sources do most of the work:

• Medical payments coverage (MedPay) on your auto policy. It pays limited medical expenses regardless of fault, which makes it the fastest money available. It is optional in California; the Department of Insurance puts it plainly, that you may be offered this coverage but can choose not to buy it. Pull your declarations page and look, because plenty of people carry it without knowing.
• Your own health insurance. It pays accident-related treatment the same way it pays anything else. Use it. A provider who says they cannot bill your health plan because there is a claim is describing their billing preference, not your coverage.
• Treating on a lien. Some providers will treat now and wait to be paid out of the settlement. That keeps care going when you have no coverage, but the full charge sits on your case and comes off the top at the end.
• Medi-Cal or Medicare, if you qualify. Both pay now and both have their own recovery rules, covered below.

What matters is that something is paying, because gaps in treatment are one of the first things an adjuster looks for, and untreated injuries do not document themselves.

Hospital liens run on their own statute

If a licensed hospital gave you emergency and ongoing care for an injury caused by someone else's wrongful act, Civil Code § 3045.1 gives it a lien on the damages you recover, to the extent of its reasonable and necessary charges, outside the workers' compensation system.

Two limits get ignored constantly.

The lien only works if the hospital gave notice. Under § 3045.3, the hospital must deliver or mail written notice, by registered mail, to each party known to be liable, before any money is paid to you or your attorney. That notice has to contain your name and address, the date of the accident, the name and location of the hospital, the amount claimed, and the names of all parties known to be liable.

The lien cannot swallow the whole settlement. Section 3045.4 caps what has to be paid out of a judgment, compromise, or settlement at 50 percent of the money due, after prior liens are paid. A hospital billing statement that exceeds your entire net recovery is a starting number, not the amount you owe.

Health plan reimbursement is capped, but not for every plan

When your health insurer pays for accident treatment, it generally wants to be reimbursed from your recovery. California limits how much it can take.

Civil Code § 3040 applies to liens asserted by licensees of the Department of Managed Health Care or the Department of Insurance, and by medical groups and independent practice associations, for services under a health care service plan contract or disability insurance policy. Within that scope:

• The lien is capped at what the plan actually paid the treating provider for noncapitated services, or 80 percent of the usual and customary charge for capitated services, plus the reasonable cost of perfecting the lien.
• If you hired a lawyer, the lien cannot exceed the lesser of that amount or one-third of the money due to you. Without a lawyer, the ceiling is one-half.
• It is reduced pro rata for your reasonable attorney's fees and costs under the common fund doctrine.
• If a final judgment includes a special finding that you were partly at fault, the lien is reduced by the same comparative fault percentage your recovery was reduced by.

Section 3040 expressly does not cover workers' compensation liens, Medi-Cal liens, or hospital liens under the statute above. It also does not make a lien arising out of an employee benefit plan enforceable if federal law preempts it. So the first question is always which kind of plan actually paid.

Medi-Cal and Medicare have separate rules

Medi-Cal. Under Welfare and Institutions Code § 14124.72(d), the reimbursed lien is reduced by 25 percent as the director's share of your attorney's fees, plus a proportional share of litigation costs. Section 14124.78 adds an outer limit: the director cannot recover more than you recover after attorney's fees and litigation costs are deducted. Section 14124.79 puts a notice duty on your side, requiring notice of legal proceedings and notice of settlement to the director in Sacramento, from the liable carrier, your attorney, or you if unrepresented.

Medicare. Medicare pays conditionally and then collects. According to CMS, once it learns of a settlement, judgment, award, or other payment, its recovery contractor searches your paid claims history and issues a demand letter stating what is owed. You can appeal or request a waiver, but interest accrues from the date of that letter. Settling without resolving this just moves the bill to you.

The billed amount is not the number that matters

Hospital charges bear little relationship to what anyone actually pays. California law follows the money rather than the invoice.

In Howell v. Hamilton Meats & Provisions, Inc., the California Supreme Court held that an injured plaintiff whose medical expenses are paid through private insurance may recover as economic damages no more than the amounts paid by the plaintiff or the insurer for services received or still owing at trial. The court explained that the collateral source rule "precludes certain deductions against otherwise recoverable damages, but does not expand the scope of economic damages to include expenses the plaintiff never incurred."

So a large chart total your insurer settled for much less is not a damages claim in the amount billed. The discount does not vanish either: what your insurer paid on your behalf is still recoverable. Keep every explanation of benefits, not just the bills, because those numbers also anchor the rest of the case, including how pain and suffering gets valued.

What this means in California

• Two years, usually. Code of Civil Procedure § 335.1 gives you generally two years from the date of injury to bring a personal injury claim. If a public entity is involved, a government claim is normally due within six months.
• Partial fault reduces, it does not bar. California follows pure comparative negligence, so being partly responsible cuts your recovery by your share rather than eliminating it. Under § 3040 that reduction can flow through to the health plan's lien as well.
• The gross settlement is not your number. Liens and reimbursement rights come off before you see anything, which is why the payback side deserves as much attention as the offer. Attorney's fees are separate again; we explain how contingency fees work elsewhere.

Practical next steps

Do three things this week. Pull your auto declarations page and confirm whether you have MedPay. Give your providers your health insurance information and ask them to bill it. And start one folder holding every bill, every explanation of benefits, and every lien or reimbursement letter that arrives, including the ones that look like junk mail. If you want someone to sort out which liens are valid and what they can actually collect, a consultation with our firm is free and there is no fee unless there is a recovery.