California · Workers' Compensation
What Is California Labor Code §4603: Employer-Requested Change of Physician?
Labor Code 4603 is the California process an employer uses to ask for a different treating physician for an injured worker. The administrative director must find good cause before approving the change, and the result is a five-name panel, four physicians and a chiropractor if the worker asked for one, for the worker to choose from. This section covers the employer's request, not the worker's own right to pick a doctor, which other Labor Code sections handle separately.
Eman Yazdchi, Esq., Certified Specialist in Workers' Compensation Law, California Board of Legal Specialization, State Bar of California.
California Board of Legal Specialization, State Bar of California

California Board of Legal Specialization, State Bar of California
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If the employer desires a change of physicians or chiropractor, he may petition the administrative director who, upon a showing of good cause by the employer, may order the employer to provide a panel of five physicians, or if requested by the employee, four physicians and one chiropractor competent to treat the particular case, from which the employee must select one.
What Is California Labor Code §4603?
This 1975 law gives an employer a path to request a new treating physician through the administrative director, not on its own say so.
State records show this wording was last repealed and rewritten in 1975, and nothing has changed since. It is still active law today.
The statute is not about a worker's right to pick a doctor. It is about the employer's request to swap doctors. The employer files a written petition with the administrative director, the state official who runs this part of the Division of Workers' Compensation. Good cause must be shown first. Only then can the director order a five-name panel: five physicians, or four physicians and one chiropractor if the employee specifically asked for that mix. The injured worker's part comes at the end of that process: choosing one name from the approved list.
How Does a Labor Code 4603 Petition Work in a Real Claim?
The employer asks first, the director checks for good cause, and a panel only follows if the petition is granted.
Picture the order of events. Your employer decides it wants a different doctor treating your injury. It writes a petition to the administrative director explaining why. The director reviews the request and looks for good cause. If the director is not convinced, the petition can simply be denied, and nothing about your treating physician changes.
- The employer files a petition asking for a change of physician or chiropractor.
- The administrative director decides whether the employer has shown good cause.
- If the petition is granted, the director orders the panel: five names in total, with a chiropractor among them only if the worker asked for one.
- The worker selects one name from that panel to become the new treating physician.
Nothing in the statute allows an employer to skip the director and switch the physician on its own. The petition step is what separates a lawful panel from an informal request.
Are There Deadlines or Dollar Amounts Under Section 4603?
The text sets a panel size, not a deadline or a dollar figure.
Labor Code 4603 does not give the administrative director a deadline for deciding a petition, and it does not name a dollar amount. The only number in the statute describes the panel: five names in total. Do not assume a figure or a clock applies here that the text does not state.
A nearby section sets timing rules once a doctor is treating you. Labor Code 4603.2 requires that physician to report to your employer on a set schedule, and it covers how medical bills get reviewed and paid once treatment is under way.
What Other Rules Could Apply Instead of This One?
Several other rules govern who treats you, and this one does not erase any of them.
If your employer has not set up a Medical Provider Network, Labor Code 4600 generally allows you to choose your own doctor once 30 days have passed since you reported the injury. The same statute also lets you keep a personal physician from day one if you told your employer in writing, before you were hurt, that you had one, and you already had your own non-work health coverage in place.
Many employers instead run treatment through a Medical Provider Network, or MPN, set up under Labor Code 4616. An MPN has its own rules for which doctors are in the network and how you switch doctors inside it. The wording of Labor Code 4603 does not mention MPNs at all. It is a separate petition path to the administrative director, one that can sit alongside these other rules rather than replace them.
How Does Labor Code 4603 Connect to Other Medical Treatment Sections?
A five-name panel like this one is easy to confuse with a different panel used for medical evaluations.
This panel is about who treats your injury. It is not the same as a QME, or Qualified Medical Evaluator, panel, which is used for a medical-legal evaluation, such as a disputed rating. The table below shows the difference.
| Panel type | What it is for | Who can ask for it | Governing law |
|---|---|---|---|
| Section 4603 panel | Changing who treats your work injury | The employer, by petition to the administrative director | Labor Code 4603 |
| QME panel | A medical-legal evaluation for a disputed medical issue or rating (3-doctor panel) | Either side, through the normal QME request process | Labor Code 4062.1 and 4062.2 |
If a QME panel is what you are dealing with, our Labor Code 4062.2 page explains that separate strike process. And if the real dispute is whether a specific treatment gets approved rather than who your doctor is, that question usually runs through Utilization Review under Labor Code 4610 instead.
What Should You Save or Ask About a Section 4603 Panel?
Keep the director's order, the list of names, and any deadline you were given to choose.
Save the administrative director's written order, not just a letter from the claims adjuster. Keep the full list of physician names and note which one, if any, is a chiropractor. Write down the date you received the list and any deadline for picking a name. If a chiropractor is on the list, confirm that you were the one who asked for that mix, since the law only allows it at the employee's request.
Questions worth asking the claims administrator include why the petition was filed, what good cause was shown, and whether your current doctor's records were sent to the new physician you choose. If the answers are unclear, or a change of physician is happening without a real petition and a director's order behind it, that is a good time to get a second opinion from a California workers' compensation attorney.
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If a letter or form in your claim cites Labor Code 4603, read it carefully and keep a copy. The law puts the decision with the administrative director, not with the employer's claims adjuster alone, so a valid panel should come with that director's order, not just a request. If you are not sure whether a change of physician was properly ordered under this law, or you have other questions about your California workers' compensation claim, Eman Yazdchi reviews each matter individually. Call (661) 273-1780 or use the contact form to ask about a free consultation.
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Frequently Asked Questions
Does Labor Code 4603 let me, the injured worker, pick my own doctor?
No. Section 4603 is the employer's petition process for changing your treating physician. Your own right to choose a doctor comes from other rules: Labor Code 4600 can allow a choice after 30 days if your employer has no Medical Provider Network, and the same statute lets you keep a personal physician you named in writing before you were hurt if you already had your own non-work health coverage at the time. If a panel results from a 4603 petition, your only choice at that point is which name on the list to pick.
What happens if the administrative director denies the employer's petition?
Labor Code 4603 does not describe that outcome. It only describes what happens when a petition is granted: a panel follows, and the worker's job is picking one name from it. Without a director's order, this law does not change how your treating physician is chosen.
Is a 4603 panel the same as a QME panel?
No. A QME, or Qualified Medical Evaluator, panel under Labor Code 4062.1 and 4062.2 has three doctors and is used for a medical-legal evaluation, such as a rating dispute. A panel under this section is about who provides your ongoing medical treatment. They are separate processes with separate rules.
Does section 4603 still apply if my employer uses a Medical Provider Network?
Many employers now run treatment through a Medical Provider Network, or MPN, under Labor Code 4616, with its own rules for choosing and switching doctors inside that network. The text of Labor Code 4603 does not mention MPNs. If you are unsure which rules govern your claim, ask the claims administrator which process applies, or call our office.
What counts as good cause for this kind of panel?
The text of section 4603 does not define good cause. It leaves that decision to the administrative director, based on the facts the employer presents in the petition. Because the statute does not list examples, do not assume any one reason will or will not qualify.
What should I do if I get a notice about this kind of panel?
Keep the notice and any list of physician names. Check whether the list has five names in total, with or without a chiropractor among them, confirm you were the one who asked for a chiropractor if that applies, and note any deadline the notice gives you to pick a name. If you have questions about what the notice means for your claim, call (661) 273-1780 or use our contact form.
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