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By Eman Yazdchi, Esq. · Certified Specialist in Workers' Compensation Law, State Bar of California Board of Legal Specialization
In California, a QME (Qualified Medical Evaluator) or AME (Agreed Medical Evaluator) is the physician who resolves medical disputes in a workers' comp case. The §4062.2 represented-worker panel process is the standard path; §4062.1 covers unrepresented workers. Yazdchi Law, a Certified Specialist in Workers' Compensation Law firm, handles QME strategy.
For an injured California worker, the day the case shifts from "treatment" to "medical-legal evaluation" is a turning point. The treating physician's role does not end, but a new physician — the Qualified Medical Evaluator or Agreed Medical Evaluator — is brought in to resolve disputed medical questions: causation, apportionment, permanent impairment, and whether the worker is at Maximum Medical Improvement. The QME's report often determines the case's final value more than any other single document.
This guide walks through the difference between a QME and an AME, when each one is used, how the panel process under California Labor Code §4062.2 actually works for a represented worker, how the unrepresented process under California Labor Code §4062.1 differs, and why panel-strike strategy matters. It is written for a worker who has just received a notice of QME panel or is about to request one.
The short version: every California workers' comp case with a medical dispute eventually needs a QME or AME. The represented worker has the right under §4062.2 to a panel of three QMEs from the California Division of Workers' Compensation Medical Unit, with the right to strike one panelist. An AME is an agreed-on neutral physician used in place of the panel when both sides agree. Picking the right path — and the right panelist or AME — is a strategic decision with major case-value consequences.
A Qualified Medical Evaluator (QME) is a physician certified by the California Division of Workers' Compensation Medical Unit to perform medical-legal evaluations. Any California physician who meets the qualifications and applies can become a QME — the certification is open. When a medical dispute arises in a workers' comp case, a panel of three QMEs is generated from the DWC Medical Unit, and the parties select one of the three to perform the evaluation under California Labor Code §4062.2 (or California Labor Code §4062.1 for unrepresented workers).
An Agreed Medical Evaluator (AME) is a single physician the parties agree on, in advance, to perform the evaluation. The AME process bypasses the three-panel system. AMEs are used when both sides trust a particular physician enough to use them without a panel selection — typically a well-known California workers' comp specialist with a reputation for fair and detailed reports. The AME's opinion carries significant weight precisely because both sides agreed to use that physician.
A QME or AME is needed whenever there is a medical dispute in the case. The most common triggers include the insurer's denial of compensability (whether the injury is work-related), the insurer's challenge to the treating physician's impairment opinion, a dispute over apportionment under California Labor Code §4663 between industrial and non-industrial causes, a dispute over whether the worker is at Maximum Medical Improvement (P&S status), a dispute over whether a body part is part of the claim, and a dispute over future medical care needs.
For a represented worker — one with an attorney — the §4062.2 panel process kicks in when the parties exchange written objections or requests for an evaluation. For an unrepresented worker, the California Labor Code §4062.1 process applies, with the same panel-of-three mechanic but procedural differences. Many cases use an AME instead, by stipulation of the parties.
Under California Labor Code §4062.2, after a written objection or request, the requesting party submits a QME panel request to the DWC Medical Unit. The Medical Unit issues a panel of three QMEs in the appropriate specialty, randomly selected from the QME registry. The parties then each have a window — typically 10 days — to strike one panelist. After the strikes, one QME remains, and the worker schedules the evaluation with that QME.
The panel-strike strategy matters. A specialist attorney evaluates each panelist's reputation, history of opinions on similar injuries, treatment philosophy, and apportionment tendencies before striking. A poorly-considered strike can leave the worker with a panelist whose record on the relevant injury favors the insurer. The strike is one of the most consequential strategic choices in a California workers' comp case.
An AME is a single physician agreed to by both parties in advance — typically through stipulation between the worker's attorney and the insurer's defense counsel. The AME process saves the time of the panel-and-strike sequence and produces a report from a single agreed-on physician. AMEs are common in California workers' comp practice because both sides often share short lists of physicians they trust to write fair, defensible reports.
The AME's opinion carries significant evidentiary weight because both sides agreed to the physician. The WCAB judge typically follows the AME's report unless there are specific reasons to depart from it. A worker who has confidence in an AME's reputation may prefer the AME path; a worker whose attorney has a strong panel-strike strategy may prefer the QME panel.
The evaluation typically lasts 30 to 90 minutes and includes a physical examination, a review of the medical records the parties have provided, and questioning about the worker's history and current symptoms. The QME or AME then produces a medical-legal report typically within 30 to 60 days. The report addresses every disputed question — causation, apportionment, impairment rating per the AMA Guides 5th Edition under California Labor Code §4660, Maximum Medical Improvement, future medical care needs under California Labor Code §4600, and any other issue the parties have raised.
Under California Labor Code §5811, the worker is entitled to a qualified interpreter at the QME or AME evaluation, with the cost charged to the defendant. Many California workers' comp evaluations are conducted with Spanish, Korean, Mandarin, Tagalog, or other interpreters, and the interpreter cost does not come out of the worker's settlement.
A specialist attorney has several options. First, request a supplemental report from the QME or AME with specific questions on the disputed findings — apportionment percentage, impairment basis, MMI determination. Second, depose the physician on the record to expose reasoning gaps. Third, on truly defective reports, request a replacement QME panel for cause. Fourth, if the case proceeds to trial on the QME report and the worker disagrees with the resulting Findings and Award, file a Petition for Reconsideration within 25 days of service by mail (or 20 days from electronic service) under California Labor Code §5903.
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Tap to call →The QME or AME decision is one of the most consequential strategic choices in a California workers' comp case. The wrong QME panelist can cost the worker tens of thousands of dollars in the final rating; the right AME can speed the case to fair resolution. The decision deserves attention, not autopilot.
When the §4062.2 panel of three QMEs arrives, a specialist attorney researches each panelist's reputation, history of opinions on similar injuries, treatment philosophy, and apportionment tendencies before striking. A panelist whose record on apportionment favors the insurer is a different choice than a panelist who tends to write conservative impairment ratings. The 10-day strike window is tight; the research has to happen quickly.
If the insurer's defense counsel and the worker's attorney both trust a particular California workers' comp specialist with a reputation for fair, detailed reports, the AME path may produce a faster, more authoritative outcome than the QME panel. The AME's opinion carries significant evidentiary weight because both sides agreed to the physician. This is a strategic choice the attorney evaluates against the case profile.
California workers' compensation attorneys work on contingency under California Labor Code §4906 — typically 15% of any settlement, paid only if the case recovers. A free consultation costs nothing, and a Certified Specialist in Workers' Compensation Law, certified by the California Board of Legal Specialization, State Bar of California, can evaluate the QME vs. AME path, the relevant specialty, and the panelist strike strategy before the panel request goes out. Yazdchi Law handles California QME and AME strategy from the firm's office in Palmdale.
Last reviewed by Eman Yazdchi, Esq., May 2026.
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