What Is an Independent Medical Examination (IME) in Personal Injury?

An Independent Medical Examination — commonly called an IME — is a medical evaluation of an injury claimant conducted by a physician selected and paid by the insurance company or the opposing party's legal team. Despite the word 'independent,' the examining physician is retained by the defense to evaluate your injuries in the context of a disputed claim. Understanding how IMEs work, what the examining physician is likely to focus on, and how to protect your rights during the examination is essential to any significant personal injury case.

What an Independent Medical Examination Is

An IME — sometimes called a defense medical examination (DME) in more candid usage — is a one-time medical evaluation of an injury claimant by a physician hired by the insurance company or defense. Its purpose is to generate a medical opinion that the defense can use to dispute the nature, extent, or causation of the claimant's injuries. IMEs are almost never ordered to confirm the treating physician's findings; they are ordered because the defense believes a second opinion will reduce damages.

IMEs are a routine part of personal injury litigation. They are not inherently improper, and courts routinely allow them. But the examining physician's conclusion — typically a written report arguing that the claimant's injuries are less severe, less permanent, or less causally related to the accident than claimed — becomes a critical contested piece of evidence at trial if the case does not settle.

Who Conducts IMEs

Insurance companies maintain relationships with physicians who conduct IMEs regularly — often spending a significant percentage of their professional time on these evaluations rather than treating patients. Defense-retained IME physicians are typically board-certified in the relevant specialty and are credentialed to testify as expert witnesses. Their fees for IME examinations and testimony are paid by the retaining party (the insurer or defense attorney), which creates a financial relationship that the plaintiff's attorney will highlight in cross-examination at trial.

IME physicians are not treating physicians. They typically spend significantly less time with the claimant than treating physicians do — often 30 to 60 minutes for an evaluation covering injuries that treating physicians have monitored over months. The IME report is based on this brief examination combined with a review of the claimant's medical records.

California Rules Governing IMEs

In litigation, IMEs in California personal injury cases are governed by Code of Civil Procedure section 2032. Key rules: the defense is entitled to one physical examination of the plaintiff by a licensed physician without obtaining a court order, upon demand, as long as the plaintiff's physical condition is in controversy. Additional examinations require either agreement or a court order showing good cause. The plaintiff is entitled to know: the time, place, and manner of the examination; the identity and specialty of the examining physician; and the conditions, restrictions, and scope of the examination.

Under CCP section 2032.510, the plaintiff has the right to have a doctor, attorney, or other representative present during the examination. The examining physician cannot use diagnostic methods that are not within the scope of a routine physical examination without a court order. Under CCP section 2032.610, the plaintiff is entitled to receive a copy of the IME report upon request.

What to Expect at an IME

A typical IME examination proceeds as follows: the examining physician reviews your medical records before the appointment; the appointment begins with a verbal history of the accident, your injuries, and your current symptoms; the physician conducts a physical examination of the areas claimed to be injured; the examination concludes and the physician prepares a written report. The physician will not provide you with a diagnosis or treatment recommendations — the IME is not a treating relationship and creates no doctor-patient obligation.

Common IME tactics to be aware of: brief examination time disproportionate to the claimed injury severity; range-of-motion measurements that differ from treating physician findings; heavy reliance on "symptom magnification" or "non-organic findings" arguments to suggest the claimant is exaggerating; and selective review of medical records emphasizing pre-existing conditions. None of these are improper, but they are patterns that your treating physicians and your own expert witnesses will need to address if the case goes to trial.

Protecting Your Rights During an IME

Before the IME: review your medical history with your attorney to ensure consistency between what you tell the IME physician and what your treating records document; do not minimize or exaggerate your symptoms — describe your actual experience accurately; and bring a list of your current medications and treating physicians. During the IME: answer the physician's questions truthfully and completely; do not volunteer information beyond what is asked; describe your symptoms on your worst days, not your best; and note the duration of the examination. After the IME: document in writing the length of the exam, everything the physician asked, and everything the physician examined, as soon as possible after leaving.

If your attorney has arranged for an observer to attend, the observer should note the same information. The length discrepancy between a 45-minute IME and 18 months of treating care is itself powerful cross-examination material at trial.

After the IME — Handling an Adverse Report

IME reports in contested cases virtually always conclude that the claimant's injuries are less severe, shorter in duration, or less causally related to the accident than the treating physicians report. This is expected. The defense IME report does not end the case — it creates a battle of the experts at trial. Your treating physicians can testify about their clinical findings, their course of treatment, and their opinions about causation and prognosis. If necessary, your attorney may retain a rebuttal medical expert to specifically address the IME physician's conclusions.

The consistency and quality of your treating records over time is your most powerful response to an adverse IME. A treating physician who has documented your injuries through repeated clinical evaluations over many months carries significantly more weight with a jury than a physician who examined you once for 45 minutes at the insurance company's request.