Written by Boyadzhyan Legal Shield editorial team
Reviewed for legal accuracy by Knarik Boyadzhyan
Last substantively reviewed

For a lot of people the settlement feels like the end of it. Then an envelope arrives, months after you stopped thinking about the accident, saying someone else has a claim on part of the money. Before you look at the number, work out what the letter actually is.
“Medical lien” sounds like one document with one set of rules. In a California injury matter, it is often shorthand for several different payment or reimbursement interests.
A provider may rely on an agreement you signed. A hospital may assert a statutory lien. A health plan may point to plan language. Medi-Cal or Medicare may seek recovery for services connected to the injury.
Those claims are not interchangeable. A medical bill shows an amount charged; it does not by itself establish a right to settlement proceeds. A lien notice or reimbursement letter asserts a right, but who is claiming it, where the authority comes from, which services are covered, what was actually paid, and what the current amount is all still have to be identified.
That distinction matters before your settlement closes. Resolving the injury claim does not automatically resolve every separate medical payment interest. The responsible question is not “What percentage do liens take?” It is “Who claims payment, under what authority, for which services, and what document will show final resolution?”
Start with who is asking, under what authority, and for how much.
Start with the sender's legal identity, not the word “lien” on the letter. A provider, hospital, billing company, collection agency, health plan, plan administrator, government contractor, assignee, or law firm may each be writing in a different capacity. For every letter you're holding, test three things:
- Identity: Who provided or paid for the care, who now claims payment, and has any right been assigned?
- Authority: What signed agreement, plan term, statute, program rule, or other source is said to create a right against the recovery?
- Amount: Which services and payments are included, is the figure preliminary or final, and what record supports it?
Two letters can concern the same services without representing two separate debts. A provider bill may show the charge while an explanation of benefits shows what a plan allowed and paid. A government payment summary may list the same encounter again. Match the dates, provider, service description, amount billed, amount paid, adjustment, and patient responsibility before you treat any number as money already spoken for.
Keep one register without treating every claim alike.
One settlement-resolution register makes the file understandable while preserving the legal identity of each claim. Build it around everyone who may have a claim on the money, not only everyone who has written to you so far.
| Register field | What it should answer |
|---|---|
| Claimant and claim type | Who is asserting the interest, and is it a provider agreement, hospital lien, health-plan claim, Medi-Cal matter, Medicare matter, or something else? |
| Asserted authority | Which agreement, assignment, statute, plan provision, or program rule is cited? |
| Services and connection | Which provider and dates are included, and how are the services connected to the injury claim? |
| Financial record | What was billed, allowed, paid, adjusted, or assigned as patient responsibility? |
| Current status | Is the document a new notice, preliminary list, conditional amount, disputed item, formal demand, or final figure? |
| Open question | Is a plan document, signed agreement, itemized bill, payment detail, notice record, or explanation missing? |
| Resolution record | What written release, satisfaction, no-lien letter, paid demand, or other confirmation will close this claimant's issue? |
Update the register from source documents, not memory. Keep an earlier demand when a revised one arrives.
Mark a figure “preliminary,” “disputed,” or “unknown” when that is accurate rather than inserting an estimate simply to complete the row. A row you can't fill in yet is information. A row you filled in by guessing is not.
Different payment interests require different documents.
The five below are grouped by the interest being asserted, not by the sender. A billing company, a collection agency, an assignee, or a law firm may each be writing in a different capacity, so the name at the top of the letter does not tell you which of the five it is.
A form a provider asked you to sign.
A provider payment agreement may be called a lien, letter of protection, assignment, authorization, or deferred-payment agreement. If a clinic treated you and had you sign something at the front desk, this is the paperwork in question. Read the complete signed terms.
Identify the services covered, how charges are determined, what rights were assigned, what information may be shared, and what the agreement says if there is no recovery. The title of the form does not answer those questions.
A hospital claiming a lien.
California's hospital-lien statutes are narrower. Civil Code section 3045.1 addresses qualifying hospital services within the statute's scope, and section 3045.3 makes specified notice part of an effective statutory lien.
A hospital bill alone does not establish that every statutory requirement was met. Review the actual hospital, services, notice, recipients, delivery, and timing.
This is also where the percentage you may have heard about comes up. The percentage language found elsewhere in that chapter is not a rule for every provider, plan, or government program.
A health plan asking to be reimbursed.
A health-plan reimbursement claim begins with plan identity and the governing document, so find out exactly which plan you have and get the document that governs it. Civil Code section 3040:
- applies to specified California-regulated claimants,
- contains defined limitations,
- excludes hospital, Medi-Cal, and workers' compensation liens, and
- does not create a lien that otherwise does not exist.
Some employee benefit plans can raise federal questions. No universal formula should be applied before the plan and claimant are classified.
A letter from Medi-Cal.
Medi-Cal uses a state third-party-liability process, and it may not begin with a letter to you at all. DHCS instructs a member or representative to report a new personal injury case and provide updates so the department can review paid services related to the incident and issue its lien or other determination. If you are a Medi-Cal member, that reporting step comes before any determination arrives. Keep the DHCS case information, service list, supporting medical and billing records, objections or updates, and final correspondence together in one place.
A letter from Original Medicare.
Original Medicare uses its own terminology, and the first thing to work out is which letter you are holding. Medicare Advantage or prescription-plan correspondence may identify a different plan and process, so check which coverage you have first.
CMS describes a conditional payment letter as an interim account of payments it currently identifies as related; additional payments may appear while the claim is pending. After resolution information and updated payment review, CMS may issue a formal recovery demand. A conditional payment amount and a final demand are therefore not the same document.
Take the total apart, line by line.
A total is a conclusion. Work back from each total to the entries underneath it, and confirm that the service occurred, that the identified entity provided or paid for it, that the date falls within the period under review, and that the record connects it to the same incident. Then compare what you have: the medical chart, itemized bill, explanation of benefits, payment data, adjustments, and later corrections. That review may reveal:
- a duplicate entry,
- an unrelated service,
- a prior or later condition requiring separate analysis,
- a payment from another source,
- a corrected bill, or
- an interim amount that is no longer current.
Finding a discrepancy does not decide entitlement. It identifies the specific item and source document that should be addressed through the claimant's proper review or dispute process.
The same discipline applies if what you are hoping for is a smaller number. “Reduction” is not one legal remedy. The relevant question may be whether a right exists, whether notice or agreement terms were satisfied, whether each service is related, whether the amount reflects actual payment data, or whether a program-specific review, compromise, appeal, or waiver process applies. No result can be promised before the claimant, authority, and record are known.
Unresolved claims change what the settlement actually means.
What your losses are worth is a separate question, discussed in damages in a California personal injury case. How care gets paid for while your case is still open is covered on our traumatic brain injury page. This section is about what is still open after both.
Payment interests may still need attention when settlement funds are distributed, even after damages have been evaluated. A gross damages figure, a proposed settlement, and an amount available after unresolved obligations are not the same thing. Before you agree to settle, you should be able to see, in one place:
- every possible claimant,
- which figures are current or preliminary,
- what is disputed,
- which documents are missing, and
- what written confirmations remain necessary.
The guide to evaluating an insurer's first settlement offer addresses the release and broader offer terms.
An asserted interest is not self-validating merely because a letter arrived. It also should not be ignored merely because you disagree with it.
Your lawyer may need to classify the claim, obtain the controlling document, compare services and payment records, use the appropriate agency or plan process, and determine what must be resolved before closing. What you can do now is get the paperwork into one place, so that work starts from a complete record. Our Personal Injury practice page explains the broader representation context, without promising that every lien can be reduced or eliminated.
Primary Legal Authorities and Agency Sources
- California Civil Code § 3040 (opens in a new window)
- California Civil Code §§ 3045.1–3045.6, Hospital Liens (opens in a new window)
- California Welfare and Institutions Code §§ 14124.70–14124.94 (opens in a new window)
- DHCS: Report a New Personal Injury Case and Case Updates (opens in a new window)
- 42 U.S.C. § 1395y, Medicare Secondary Payer Provisions (opens in a new window)
- CMS: Medicare's Recovery Process (opens in a new window)
Go through the register before the settlement terms are final.
Pull together every provider bill, explanation of benefits, signed agreement, lien notice, plan letter, DHCS record, and Medicare letter you have, and put each one into the register. For each, write down the claimant, asserted authority, service dates, current status, open question, and needed resolution document.
Then bring the register and your source records to a consultation. If the pile is disorganized, bring it disorganized. Initial consultations with Boyadzhyan Legal Shield are free, confidential, and carry no obligation to hire the firm.
Continue reading
How Are Damages Calculated in a California Personal Injury Case?
California personal injury damages are separate forms of legally caused harm. Each category needs its own proof, causal connection, and non-duplicative explanation.
Personal InjuryHow Do Gaps in Medical Treatment Affect a California Injury Claim?
A gap in medical treatment is an interval, not a legal conclusion. Its significance depends on the chronology, the reason, and the issue it is used to address.
Car AccidentsShould You Accept the Insurance Company's First Settlement Offer?
A settlement trades the claim for payment and a release. Evaluate medical status, losses, liens, coverage, disputed fault, and the release before deciding.
- Should You Give the Insurance Company a Recorded Statement?
- How a California Personal Injury Claim Works
- How Comparative Negligence Works in California Injury Claims
- What Evidence Helps Prove a California Personal Injury Claim?
- What Happens at a California Personal Injury Deposition?
- California Personal-Injury Deadlines: How Long Do You Have to File?
