This California guide explains medical expert testimony: what to preserve. Start with this action: Complete all recommended treatment. Preserve this priority record: Complete medical records. Avoid this common gap: Relying only on treating doctor opinions. The sections below organize the evidence, timing, practical questions, and consultation steps that may matter.
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Founder, Civil Litigation, Personal Injury & Criminal Defense Attorney
Raffi Garabed Naljian is the founder of Naljian Law Offices and an active California attorney under State Bar #238919. A Los Angeles Times profile says he founded the firm in 2008 after beginning his legal career in 1997, and the State Bar lists personal injury, litigation, criminal law, and business law among his self-reported practice areas.
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The State Bar record lists Raffi Garabed Naljian as an active California attorney, State Bar #238919. Hurt Advice is a separate referral and legal information service, not the attorney's law firm.
For medical expert testimony: what to preserve, ask how prospective counsel would evaluate Complete medical records and address the risk of Relying only on treating doctor opinions. No directory or topic page can determine the right attorney. Compare active-license status, directly relevant experience, communication, fees, conflicts, availability, and who would handle the work, then confirm case fit directly before choosing counsel.
Topic preparation notes
These notes explain what the issue may involve, which documents make the first review stronger, and when a direct consultation may be more useful than further browsing.
First action: Complete all recommended treatment. Next action: Gather complete medical records. Keep the order tied to actual dates so an attorney can distinguish completed actions, open requests, and assumptions.
Start with Complete medical records and Diagnostic imaging (MRI, CT, X-ray). Add Treatment notes and plans as a separate source, preserving who created or controls each item and when it was obtained.
Avoid Relying only on treating doctor opinions. Also guard against Not getting expert on causation. A useful file separates confirmed facts, disputed points, and records that still need to be requested.
California evidence brief
Medical expert testimony is useful only when the proposed expert is qualified for the actual subject and bases the opinion on information reasonably used in that field. California Evidence Code sections 720 and 801 address those two separate questions. Before focusing on an expert’s title, identify the disputed medical issue, preserve the complete treatment record and imaging, and test whether the opinion explains its assumptions and limitations.
Write the exact issue that requires specialized explanation, such as diagnosis, causation, prognosis, future care, work restrictions, imaging interpretation, or whether a condition predated the event.
Why it matters: Expertise is subject-specific. A clinician may be highly qualified in one area without having the training or experience needed for a different medical or vocational question.
Collect pre-incident records relevant to the body part, emergency records, imaging and original image files, specialist notes, therapy records, prescriptions, work restrictions, prior claims, and current recommendations.
Why it matters: An opinion based on a partial file may miss prior symptoms, changes over time, treatment gaps, or a later event. A chronology also shows which records the expert actually considered.
Identify the facts assumed, records reviewed, examination performed, method used, alternative explanations considered, and conclusions the expert cannot reach. Keep drafts and communications handled through counsel when appropriate.
Why it matters: A useful opinion explains the path from reliable information to the conclusion. Credentials alone do not cure an unsupported assumption or a mismatch between the expert’s field and the disputed issue.
Primary statutory text concerning expert qualification through relevant knowledge, skill, experience, training, or education.
Primary statutory text concerning expert-opinion subjects and the information on which an opinion may be based.
These sources provide general California context. Deadlines, admissibility, available claims, and required proof depend on the specific facts and should be reviewed individually.
Compare the claim facts with the attorney's credentials, listed practice focus, and public sources.
Begin with this step: Complete all recommended treatment. Address urgent safety and necessary care before administrative preparation.
Preserve Complete medical records and Diagnostic imaging (MRI, CT, X-ray) as separate sources. Record their dates, custodians, and any unanswered request.
Review the file for Relying only on treating doctor opinions and Not getting expert on causation. Correct missing context without changing or discarding the original record.
Bring the organized records and questions to the consultation. An independent attorney can evaluate the actual facts only after reviewing them and can provide representation only under a separate agreement.
Start with this step: Complete all recommended treatment. Next: Gather complete medical records. Address urgent safety or medical needs first, and seek timely advice if a deadline or changing evidence may matter.
Prioritize these records: Complete medical records; Diagnostic imaging (MRI, CT, X-ray). Keep originals, note where each record came from, and identify anything requested but not yet received rather than treating a missing item as proof of what it would show.
Avoid this gap: Relying only on treating doctor opinions. Preserve the underlying facts and communications, separate what is known from what is assumed, and let a qualified attorney evaluate how the issue applies to the actual matter.
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