Will the at-fault driver's insurance pay my bills as I go?

No. California has no no-fault or personal injury protection coverage. The at-fault insurer typically pays once, at the end, as part of a settlement of the whole claim. Treatment in the meantime is covered by med-pay, your health insurance, a provider lien, Medi-Cal or workers' compensation.

Should I use my health insurance even though someone else caused the crash?

Generally yes. It gets you proper care at negotiated rates, which usually produces a better net result than accumulating full-rate lien balances. Your insurer will assert a reimbursement right against the settlement, which is handled at the end and is often negotiable.

What happens if my bills exceed the at-fault driver's policy limits?

You look for every other source: your own underinsured motorist coverage, an umbrella policy, the driver's employer, the vehicle's owner, or a commercial policy. Note that California UIM is reduced by what the liability carrier paid rather than added to it, so total available coverage is often lower than people assume.

I have no insurance at all. Can I still get treated?

Yes. Many providers treat on a lien and wait for payment from a settlement, and Medi-Cal, county programs and community clinics are available to eligible people. Tell your lawyer early if cost is keeping you from appointments, because gaps in treatment damage both your recovery and your claim.

Can I negotiate what I owe out of my settlement?

Frequently, yes, and it matters as much as the settlement amount. Hospital liens, health plan reimbursement claims and provider lien balances are often reducible. Always ask what your net recovery is after liens before accepting an offer, not just what the gross number is.

Who Pays Your Medical Bills After a California Crash?

What covers treatment right now

Medical payments coverage (med-pay)

An optional auto coverage, frequently a few dollars a month, that pays your treatment regardless of who was at fault and without waiting for anyone to accept liability. Common limits are modest, often $1,000 to $25,000, but in the first weeks it is usually the fastest money available. If you do not have it, add it at your next renewal; it is the cheapest useful coverage on a California auto policy.

Your health insurance

Usually the right answer for anything substantial. Use it. Your insurer will generally assert a right to be reimbursed out of any settlement, which is addressed at the end of the case and is frequently negotiable. Getting proper care promptly matters more than optimizing who pays first, and untreated injuries hurt both your health and your claim.

Treating on a lien

Many California providers, particularly chiropractors, orthopedists, pain management specialists and imaging centers, will treat an injured person with no insurance and wait to be paid from a future settlement. This is a legitimate and widely used arrangement. Two cautions: lien balances are typically billed at full rates rather than negotiated insurance rates, so they can consume a large share of a settlement, and a lien provider gets paid whether or not the recovery is enough to also compensate you. Treating on a lien is a good option; it is not a free one.

Medi-Cal and county programs

Medi-Cal covers eligible Californians and has statutory reimbursement rights out of a settlement under Welfare and Institutions Code section 14124.70 and following. County indigent programs and community clinics are also real options. The important point is that lack of insurance is not a reason to go untreated.

Workers' compensation

If you were working when the crash happened, including driving between job sites or running an errand for an employer, workers' compensation generally covers the treatment. It also creates a parallel case and the comp carrier gets reimbursement rights against any third-party recovery. The two systems interact in ways that need coordinating from the start rather than reconciling at the end.

Liens: the part that determines your net recovery

Here is the thing almost nobody is told at the beginning. A settlement number is not what you receive. Several parties may have a right to be repaid out of it first, and how well those claims are negotiated affects your net as directly as the settlement amount does.

Health insurers, asserting reimbursement or subrogation rights under the plan. ERISA-governed self-funded plans have stronger rights than many other plans, and the distinction matters.
Hospitals, under the Hospital Lien Act, Civil Code section 3045.1, which allows a lien against a third-party recovery for emergency and ongoing services.
Medi-Cal, under Welfare and Institutions Code section 14124.70 and following, with statutory formulas governing its share.
Medicare, with federal reimbursement rights that must be resolved before a settlement is safely distributed.
Lien-based treating providers, under their signed agreements.
Workers' compensation carriers, with a statutory right to reimbursement from a third-party recovery.

The practical reality: these amounts are frequently negotiable, sometimes substantially. Reducing a hospital lien or a plan's reimbursement claim puts money in a client's pocket just as surely as a higher settlement does, and it is unglamorous work that happens after the settlement is agreed. Any evaluation of a settlement offer that does not account for the liens is not an evaluation at all. Ask what your net looks like, not what the gross is.

When the at-fault insurance actually pays

At the end, in one payment, as part of a settlement or judgment that resolves the entire claim. Not along the way, and generally not as a direct payment to your providers.

Which raises the limits problem. Since January 1, 2025, California's minimum liability coverage is $30,000 per person and $60,000 per accident, up from 15/30/5 under Senate Bill 1107. That was the first increase since 1967 and it is still frequently inadequate: a single ambulance ride, emergency room workup, CT scan and a few weeks of physical therapy can approach $30,000 by itself.

When damages exceed the available limits, every other possible policy matters:

Your own underinsured motorist coverage, remembering that California UIM is reduced by what the at-fault carrier pays rather than stacked on top of it.
An umbrella policy held by the at-fault driver or the vehicle's owner.
The at-fault driver's employer, if they were working, which often means commercial limits far above a personal policy.
The vehicle's owner, where a car was lent to someone who should not have been driving it.
A rideshare or commercial policy, where the applicable limits depend on the driver's status at that moment.

Reviewed October 2026. General information about California law, not legal advice. Statutes and case law change; confirm anything you intend to rely on.