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California Labor Code §4600.3 — Predesignation of Personal Physician
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By Eman Yazdchi, Esq. · Certified Specialist in Workers' Compensation Law, State Bar of California Board of Legal Specialization · Cal Bar #285231
(a) (1) Notwithstanding Section 4600, when a self-insured employer, group of self-insured employers, or the insurer of an employer contracts with a health care organization certified pursuant to Section 4600.5 for health care services required by this article to be provided to injured employees, those employees who are subject to the contract shall receive medical services in the manner prescribed in the contract.
What does California Labor Code section 4600.3 establish?
Section 4600.3 lets California workers lock in a personal physician before any injury occurs, bypassing the employer's Medical Provider Network selection when an injury later happens.
Section 4600.3 is the rule that lets a California worker designate a personal physician before any work injury occurs, so when an injury happens, the worker treats with the chosen doctor outside the employer's Medical Provider Network. Predesignation must happen before the injury, in writing, with the doctor's consent. Certified Specialist Eman Yazdchi (California Board of Legal Specialization, State Bar of California) enforces predesignation rights on every file where the form was properly filed.
California Labor Code section 4600.3 (and the related California Labor Code §4600, California's general right to medical treatment reasonably required to cure or relieve the effects of the industrial injury, predesignation framework) allows a California injured worker to predesignate a personal physician for treatment of industrial injuries before any injury occurs. Under section 4600.3, when the California worker properly predesignates a personal physician in writing, and the predesignated physician has agreed in advance to treat the worker for industrial injuries, the predesignated physician provides initial medical treatment after a subsequent injury, overriding the California employer's California Labor Code §4616, California's medical-provider-network statute that lets employers steer treatment into an approved network, California medical-provider-network steering. The section 4600.3 California rule lets California workers preserve continuity of care with a trusted doctor rather than being routed into the employer's MPN at the moment of injury.
What are the section 4600.3 California predesignation requirements?
Predesignation requires a written designation filed with the employer before the injury, signed by the worker, and accepted by the chosen physician on the standard predesignation form.
Under California Labor Code section 4600.3 and the related California Labor Code §4600 California predesignation regulations, the California valid predesignation requires several elements: (1) the predesignation is made in writing before any industrial injury occurs; (2) the California worker has a pre-existing relationship with the named physician (typically meaning the physician has previously directed the worker's medical treatment for non-industrial conditions); (3) the predesignated physician has agreed in advance to accept the predesignation and to treat the California worker for industrial injuries; (4) the predesignation form is delivered to the California employer; and (5) the predesignation contains the physician's name, address, and practice information. The section 4600.3 California predesignation must be made before the injury, not after.
What is the section 4600.3 California "personal physician" definition?
A personal physician means the worker's regular treating doctor who has previously directed the worker's medical treatment and maintains the worker's medical records.
Under California Labor Code section 4600.3, the California "personal physician" eligible for predesignation is generally limited to a California-licensed medical doctor (MD) or osteopath (DO) who: has previously directed the California worker's medical treatment; has a pre-existing relationship with the worker; and maintains records demonstrating that relationship. The section 4600.3 California rule does not allow predesignation of just any doctor, the doctor must be the California worker's actual personal physician, with documentation supporting the prior treating relationship. The section 4600.3 California rule limits predesignation to general practice; certain specialty providers are not eligible for direct predesignation under section 4600.3 California.
How does section 4600.3 California override §4616 MPN steering?
Once properly predesignated, the personal physician treats the worker for the work injury outside MPN steering controls, with the carrier obligated to pay for that care.
Under California Labor Code section 4600.3 and California Labor Code §4616 (medical-provider-network), the California predesignation overrides the California employer's MPN steering. The California Labor Code §4616 California rule normally requires the California injured worker to obtain initial treatment from a physician within the employer's MPN, but the section 4600.3 California predesignation carve-out lets the California worker bypass the MPN and go directly to the predesignated personal physician. The section 4600.3 California override applies only when the predesignation was properly made before the injury and the predesignated physician has agreed to provide treatment. The section 4600.3 California carve-out is one of the limited paths around California Labor Code §4616 California MPN containment.
How does section 4600.3 California interact with §4600 medical-treatment duty and §4616 MPN?
Predesignation interacts with the carrier's medical-treatment duty by giving the worker control over the initial treating physician, who then directs referrals and specialty consultations.
Under California Labor Code section 4600.3 (predesignation), California Labor Code §4600 (medical-treatment duty), and California Labor Code §4616 (MPN), the California treatment-access framework operates in layers. California Labor Code §4600 California establishes the California employer's general duty to provide reasonably required medical treatment. California Labor Code §4616 California then allows the California employer to channel that treatment through its MPN. Section 4600.3 California creates the predesignation carve-out: when properly invoked before injury, the section 4600.3 California predesignated physician provides initial treatment outside the California Labor Code §4616 California MPN. The three California sections together define how a California injured worker actually accesses California Labor Code §4600 California reasonable medical treatment after an industrial injury.
Related on yazdchilaw.com: California workers' compensation lawyer pillar · California Labor Code §5400.30 explained · California Labor Code §3700.6 explained · what to do if you can't go back to work after a workers' comp injury.
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What does California Labor Code section 4600.3 actually establish for predesignation?
California Labor Code section 4600.3 (and the related California Labor Code §4600 California predesignation framework) allows a California injured worker to predesignate a personal physician for treatment of industrial injuries before any injury occurs. Under section 4600.3, when the California worker properly predesignates a personal physician in writing, and the predesignated physician has agreed in advance to treat the worker for industrial injuries, the predesignated physician provides initial medical treatment after a subsequent injury, overriding the California employer's California Labor Code §4616 California medical-provider-network steering. Section 4600.3 California lets workers preserve continuity of care.
What are the section 4600.3 California predesignation requirements?
Under California Labor Code section 4600.3 and the related California Labor Code §4600 California predesignation regulations, the California valid predesignation requires several elements: (1) the predesignation is made in writing before any industrial injury occurs; (2) the California worker has a pre-existing relationship with the named physician; (3) the predesignated physician has agreed in advance to accept the predesignation and to treat the California worker for industrial injuries; (4) the predesignation form is delivered to the California employer; and (5) the predesignation contains the physician's name, address, and practice information. The section 4600.3 California predesignation must be made before the injury, not after.
What is the section 4600.3 California "personal physician" definition?
Under California Labor Code section 4600.3, the California "personal physician" eligible for predesignation is generally limited to a California-licensed medical doctor (MD) or osteopath (DO) who: has previously directed the California worker's medical treatment; has a pre-existing relationship with the worker; and maintains records demonstrating that relationship. The section 4600.3 California rule does not allow predesignation of just any doctor, the doctor must be the California worker's actual personal physician, with documentation supporting the prior treating relationship. The section 4600.3 California rule limits predesignation to general practice; certain specialty providers are not eligible for direct predesignation under section 4600.3 California.
How does section 4600.3 California override §4616 MPN steering?
Under California Labor Code section 4600.3 and California Labor Code §4616 (medical-provider-network), the California predesignation overrides the California employer's MPN steering. The California Labor Code §4616 California rule normally requires the California injured worker to obtain initial treatment from a physician within the employer's MPN, but the section 4600.3 California predesignation carve-out lets the California worker bypass the MPN and go directly to the predesignated personal physician. The section 4600.3 California override applies only when the predesignation was properly made before the injury and the physician has agreed. The section 4600.3 California carve-out is one of the limited paths around California Labor Code §4616 California MPN.
How does section 4600.3 California interact with §4600 medical-treatment duty and §4616 MPN?
Under California Labor Code section 4600.3 (predesignation), California Labor Code §4600 (medical-treatment duty), and California Labor Code §4616 (MPN), the California treatment-access framework operates in layers. California Labor Code §4600 California establishes the California employer's general duty to provide reasonably required medical treatment. California Labor Code §4616 California then allows the California employer to channel that treatment through its MPN. Section 4600.3 California creates the predesignation carve-out: when properly invoked before injury, the section 4600.3 California predesignated physician provides initial treatment outside the California Labor Code §4616 California MPN. The three California sections together define how a worker actually accesses California Labor Code §4600 California medical treatment.
Last reviewed by Eman Yazdchi, Esq., June 2026.
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