Disability
Disability cases require medical expert witnesses who can objectively evaluate a claimant's functional limitations, establish the medical basis for those limitations, and relate them to the demands of specific occupational or daily living activities. These cases arise in Social Security disability proceedings, long-term disability insurance disputes, ADA accommodation litigation, and personal injury claims where permanent impairment is alleged. Expert testimony is essential because disability determinations hinge on medical evidence that translates clinical findings into functional capacity assessments, and opposing sides routinely retain experts who reach different conclusions from the same medical record.
Medical experts in disability cases establish the existence and severity of the claimant's medical conditions, assess residual functional capacity, and opine on whether the claimant meets the applicable definition of disability. The expert reviews the medical record, diagnostic studies, and treatment history to determine whether the claimant's reported limitations are consistent with objective clinical findings. In Social Security cases, the expert applies the SSA's five-step sequential evaluation framework and addresses whether the claimant meets or equals a listed impairment. In insurance disputes, the expert evaluates whether the claimant satisfies the policy's definition of disability, whether own-occupation or any-occupation. The expert also addresses the adequacy of the claimant's treatment efforts and whether maximum medical improvement has been reached.
Orthopedic surgery experts evaluate musculoskeletal impairments including chronic back pain, joint degeneration, and post-surgical functional limitations. Psychiatry experts assess mental health conditions including major depression, anxiety disorders, and PTSD as they relate to occupational functioning. Neurology experts address cognitive impairment, seizure disorders, peripheral neuropathy, and traumatic brain injury. Rheumatology experts evaluate autoimmune conditions such as rheumatoid arthritis and lupus that cause variable but potentially disabling symptoms. Internal medicine experts provide a comprehensive assessment of multi-system disease and comorbidities. Physical medicine and rehabilitation specialists perform formal functional capacity evaluations and vocational assessments.
Disability experts must demonstrate that their opinions are grounded in reproducible clinical methodology, including standardized physical examination findings, validated functional assessment tools, and accepted diagnostic criteria. Under Daubert, the expert must show that the assessment was systematic rather than conclusory, and that functional limitations are supported by objective evidence rather than solely by the claimant's subjective reports. Clinical currency in treating the specific condition at issue strengthens credibility, particularly when the opposing expert is a records-review-only physician.
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