California Agreed Medical Evaluator (AME): Selection, Report, and Costs

A California Agreed Medical Evaluator, or AME, is a physician chosen jointly by an injured worker’s attorney and the employer’s insurance carrier to settle medical disputes in a workers’ compensation claim. The AME process is open only to represented workers, and the evaluator’s findings carry more weight before the Workers’ Compensation Appeals Board than almost any other medical opinion in the case. That makes the choice of doctor one of the most consequential decisions in a litigated claim.

Who Can Use an AME

You need an attorney. Labor Code Section 4062.2 governs comprehensive medical evaluations when the employee is represented, and the AME route lives inside that section.¹ Unrepresented workers go through the Qualified Medical Evaluator (QME) panel process instead, where the state assigns a three-doctor panel and there is no negotiation over who performs the exam.

One rule surprises people. If you were represented, went through an AME, and later lose or fire your attorney, you do not get a second evaluation. The completed AME report stands as the medical determination on that issue regardless of your representation status afterward.¹

What Disputes an AME Resolves

A medical-legal evaluation becomes necessary when the treating physician’s report cannot settle a disagreement between the worker and the carrier. Labor Code Section 4060 lists the triggers, and the most common one is whether the injury is work-related in the first place.¹ Other frequent issues include the degree of permanent disability, the need for future medical care, and apportionment, meaning how much of your current condition traces to the work injury versus pre-existing health problems.

Not every disagreement qualifies. If the employer has already accepted the injury, compensability is off the table and the dispute has to involve something else. Disputes subject to independent medical review of utilization review decisions cannot be routed to an AME either.¹ The resulting report is formal evidence, not a casual second opinion.²

How the Doctor Is Chosen

The parties can agree on an AME at any time during the claim. In practice, the applicant’s attorney and the carrier’s representative negotiate over a specific physician, weighing clinical specialty, reputation for thoroughness, and perceived neutrality. Experienced attorneys keep short lists of doctors they consider fair, and when preferences overlap, agreement happens quickly.

When the parties cannot agree, the fallback is the state QME panel. Either side may request a three-member panel no earlier than 10 days after the initial request for a medical evaluation is mailed. Each party strikes one name, and the remaining physician conducts the exam. If one side fails to strike within 10 days, the other side picks from whoever remains.¹ Once a dispute is submitted to an AME, neither side can request a panel on that issue unless both cancel the agreement in writing.

After selection, the represented worker is responsible for scheduling. If the worker fails to notify the employer of the appointment within 10 days, the employer can schedule it instead and inform the worker.¹

Preparing the File the Doctor Sees

Both sides compile a packet before the appointment. California regulations require the claims administrator to send all treating physician records, prior medical records relevant to the dispute, and non-medical records such as surveillance video or job descriptions that bear on the medical issues.³ Diagnostic imaging, payroll records, and wage statements go in when earnings or temporary disability rates are in dispute. The injured worker may also submit records directly.

A letter of instruction accompanies the file, outlining the treating physician’s determination and the specific questions the evaluator must answer. It has to be served on the opposing party at least 20 days before the evaluation so the other side can review and object if needed.³ The questions usually cover whether the injury arose out of employment, the level of permanent impairment, and apportionment.

Ex Parte Communication Rules

Rules on contacting the evaluator are strict. All communications must be in writing and sent simultaneously to the other side. AMEs get one narrow exception: oral or written communications about nonsubstantive matters like scheduling, furnishing records, or checking on report availability are permitted, unless the Appeals Board has already found an improper contact in the case.³

Sending records to the evaluator without copying the other side is an ex parte communication. The aggrieved party can then request a new QME panel, restarting the evaluation and adding months to the claim. Advocacy letters, unauthorized medical reports, or anything else intended to influence the evaluator outside the formal record exchange is also off limits.³

The Appointment

The exam opens with a detailed interview covering the injury, prior conditions, and current symptoms. A physical examination follows, tailored to the body parts or systems at issue. The evaluator runs clinical tests to verify reported complaints and observes functional limitations in person. The doctor may also review records during the session to clarify treatment dates or reconcile conflicting information.

Labor Code Section 4628 requires the physician who signs the report to personally conduct the examination. No one other than a nurse performing routine clinical tasks such as taking blood pressure may examine the worker or participate in the non-clerical preparation of the report, including taking history, reviewing prior records, or drafting the conclusions. If someone other than the signing physician initially outlines history or excerpts records, the physician must personally review all of it and conduct any additional inquiries needed. A report that fails these requirements is inadmissible, and the employer owes no medical-legal fees for it.⁴

Report Timeline

The evaluator has 30 days after the examination to prepare and submit a written report. The deadline applies equally to AMEs and QMEs.⁵ A physician can request a good cause extension from the DWC Medical Director, but extensions cannot exceed an additional 15 days and must be filed five days before the report is due.² If the evaluator misses the deadline without an approved extension, either party can request a replacement. Most attorneys prefer to wait, but the option is there when delays become unreasonable.

The finished report goes to both sides at the same time. If a hearing is pending, it is also filed with the Workers’ Compensation Appeals Board. The report must include a declaration under penalty of perjury confirming accuracy and must disclose who performed each component of the evaluation.⁴

Why the Report Carries So Much Weight

This is where the AME path diverges most sharply from the QME path. Because both sides hand-picked the evaluator, the Appeals Board treats the AME’s opinion as presumptively reliable. The standard from case law is that the AME’s opinion should ordinarily be followed unless there is good reason to find it unpersuasive. That is a high bar for the losing party.

A QME report gets no such deference. When a QME opinion conflicts with a treating physician’s report, the judge simply follows whichever is more persuasive. The heightened weight attached to an AME is exactly why selection matters. Agreeing to the wrong physician can lock in findings that are very hard to overturn.

Challenging the AME Report

An AME report is hard to beat, but it is not bulletproof. Several options exist for a party that believes the findings are wrong.

Supplemental report. Either side can send written questions asking the evaluator to clarify or expand on specific points. It is the least confrontational step and often the first move when the report has ambiguities or omits a relevant issue.
Deposition. An attorney can depose the AME under oath and cross-examine the physician about methodology, inconsistencies, or unsupported conclusions. Depositions are costly but effective at exposing weaknesses that do not show up on paper.
Treating physician’s report. If the AME report can be successfully undermined, the treating physician’s opinion may gain enough credibility to carry the issue instead.
WCAB review. When settlement is impossible, either party can bring the dispute to a Workers’ Compensation Administrative Law Judge, who weighs all medical evidence and decides which opinions to credit.

Supplemental reports and depositions are the common tools. Asking a judge to reject an AME report outright is an uphill fight given the presumption the report enjoys.

Conflicts of Interest

An AME must be free of disqualifying conflicts, and both the doctor and the parties share responsibility for flagging them. A conflict exists where the evaluator has a familial relationship, a significant financial interest, or a professional affiliation with a party involved in the claim.⁶

The financial thresholds are specific. An evaluator is disqualified if they hold a 5% or greater interest in any business entity connected to the matter, or if 5% or more of their income comes from direct referrals by the involved parties. A catch-all covers any relationship that would cause a reasonable person to doubt the evaluator’s impartiality.⁶

If a conflict surfaces, the evaluator must give written notice to both sides within five business days, identifying the person or entity involved and the category. A party who spots a potential conflict has the same five business days to notify the evaluator in writing, and the evaluator then has five business days to respond with a determination.⁶ An evaluator may also voluntarily step aside when a relationship makes it unethical to proceed, even if the conflict does not fit squarely into an enumerated category.

Who Pays and What It Costs

California’s medical-legal fee schedule sets reimbursement rates. A comprehensive medical-legal evaluation carries a standard fee of $2,015, and the claims administrator is generally responsible as a medical-legal expense of the claim.⁷

Missing a scheduled evaluation costs $503.75 under the fee schedule’s missed appointment code. The same charge applies if the worker arrives more than 30 minutes late and the physician cannot continue, leaves before the evaluation is complete, or cancels within six business days. If the no-show is the worker’s fault, the employer can seek to credit that charge against the eventual award.⁷

A deposition of the AME entitles the physician to a minimum of two hours at the medical-legal testimony rate of $455 per hour.⁷ The party requesting the deposition usually bears the cost, though it can become a disputed item at trial.

Injured workers who travel to the appointment can claim mileage, parking, and public transportation costs as reimbursable expenses of the claim. Keep a mileage log and receipts.

1
California Legislative Information. California Labor Code Section 4062.2
2
Department of Industrial Relations. DWC Answers to Frequently Asked Questions About Qualified Medical Evaluators for Injured Workers
3
Department of Industrial Relations. California Code of Regulations Title 8 Section 35 – Exchange of Information and Ex Parte Communications
4
California Legislative Information. California Labor Code Section 4628
5
Department of Industrial Relations. California Code of Regulations Title 8 Section 38 – Medical Evaluation Time Frames and Extensions for QMEs and AMEs
6
Department of Industrial Relations. California Code of Regulations Title 8 Section 41.5 – Conflicts of Interest by Medical Evaluators
7
Department of Industrial Relations. California Code of Regulations Title 8 Section 9795 – Reasonable Level of Fees for Medical-Legal Expenses