This rule is set by California Labor Code Section 4600 and 8 California Code of Regulations Section 9767. So the short answer depends on two questions: did you fill out the right form before getting hurt, and does your employer actually have an MPN. Here is how each piece works in practice.
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Have a workers comp question? Ask us ›What Is Pre-Designation of a Personal Physician?
California Labor Code Section 4600(d) lets you name your own primary care doctor as your treating physician for any future work injury. You do that with DWC Form 9783, the Pre-designation of Personal Physician form.
Three conditions must be met:
- The form must be submitted to your employer in writing before the injury occurs.
- The doctor must be your regular primary care physician with whom you have an established treating relationship.
- The doctor must have agreed in advance to treat work injuries.
If you meet all three, you can go to your own doctor from day one of the injury, and the carrier pays the bill.
If your spouse or domestic partner is covered under your group health insurance, you can also pre-designate that doctor. Specialty practices (orthopedic, pain management) usually do not qualify because they are not your “primary” physician.
What If My Employer Has an MPN and I Did Not Pre-Designate?
Then you start inside the MPN. Your employer's claims administrator will give you a list of approved doctors within a reasonable distance of your home or workplace. Pick one. You can change to a different MPN doctor at any time without permission, under 8 CCR Section 9767.6.
After 30 days, you have somewhat more flexibility. You can:
- Continue with the MPN doctor.
- Switch to another physician within the MPN at any time.
- Request a different specialty if your injury requires it.
You cannot, in this situation, leave the MPN entirely just because you prefer your family doctor.
What If My Employer Has No MPN?
This is the second main exception. If your employer has no valid MPN, you can treat with the doctor of your choice after 30 days under Labor Code Section 4600(c). Even in the first 30 days, your employer can only direct you to a specific physician if it has set up a valid MPN or designated a Health Care Organization (HCO).
Small employers in California often do not have a real MPN. If you ask the claims adjuster for the MPN information and they cannot give you a list of doctors, that is a sign no valid MPN exists, and you have more freedom than the carrier may suggest.
How Do I Pre-Designate Now in Case I Am Hurt Later?
If you have not been injured yet and want the option of your own doctor, fill out DWC Form 9783 today. The form is available on the California Division of Workers' Compensation (DWC) website.
The steps:
- Confirm with your primary care physician that they will accept workers comp.
- Print DWC Form 9783, fill in your information, your doctor's information, and your group health insurer.
- Sign it and give a copy to HR or your supervisor. Keep a stamped copy or send by email so you have proof of date.
- Update the form if you change doctors or jobs.
You do not need to notify your employer every time the form changes, but you should make sure they have your current designation on file.
What If I Already Saw an MPN Doctor and I Want to Switch?
You have several rights once treatment has started:
- Change to another MPN doctor at any time under 8 CCR Section 9767.6.
- Request a second opinion within the MPN under Labor Code Section 4616.3.
- Request a third opinion if the second opinion confirms the first.
- Request treatment outside the MPN if the network does not have the necessary specialty within reasonable geographic access.
If a third opinion still disagrees with you, you can request that treatment be provided outside the MPN by a physician of your choice, as long as the physician's care is consistent with the Medical Treatment Utilization Schedule (MTUS).
Have a workers comp question? Ask us
Have a workers comp question? Ask us ›What About Emergency Care?
Emergency room care for an acute work injury is always covered regardless of MPN rules. If you go to the nearest ER after an injury, the carrier pays. The MPN restriction applies to ongoing follow-up care, not to emergency stabilization.
After the ER visit, you typically transition back into the MPN within the next few business days. The carrier or claims adjuster will reach out with a list of approved physicians. If you have not heard from them within five business days of the ER visit, call the claims adjuster yourself and ask for the MPN list in writing.
Practical Tips From Cases I Have Handled
A few patterns come up over and over in California workers compensation cases involving doctor choice:
- Pre-designation paperwork goes missing. Always keep a personal copy, ideally signed and dated by HR or scanned to your phone.
- The carrier sometimes claims the MPN includes a specialist when in fact the named doctor is no longer accepting workers comp patients. Verify by calling the clinic directly before you accept the assignment.
- Telemedicine MPN doctors became common after 2020. They are convenient but generally less effective for orthopedic injuries that require hands-on examination. You can ask for an in-person evaluation.
- The MPN list itself must be kept current under 8 California Code of Regulations Section 9767.5. An out-of-date list is grounds to challenge the validity of the network.
If any of those issues come up, document the call in writing (email summary to the adjuster the same day), and consider getting an attorney involved before treatment stalls.