Independent Medical Review (IMR)
Legal basis: LC §4610.5
Definition
A review process conducted by an independent physician organization when an injured worker disputes a utilization review decision that denied, delayed, or modified requested treatment. IMR decisions are binding and based solely on medical evidence under the MTUS guidelines.
Key Facts About IMR in 2026
QME Physicians in CA
~2,500
Evaluation Fee Range
$2,500-$4,000
Report Deadline
30 days
Avg AI-Assisted Turnaround
14 days
Related Terms
Find a Physician
Browse our directory of 2,500+ QME-certified physicians in California. Filter by specialty, county, and availability.
Browse IMR Physicians →Frequently Asked Questions
What is a Independent Medical Review (IMR)?
A review process conducted by an independent physician organization when an injured worker disputes a utilization review decision that denied, delayed, or modified requested treatment. IMR decisions are binding and based solely on medical evidence under the MTUS guidelines.
What is the legal basis for IMR in California workers' compensation?
Independent Medical Review is governed by LC §4610.5 under California workers' compensation law. This statute defines the requirements, procedures, and standards for independent medical review in the workers' compensation system as of 2026.
How much does a IMR evaluation cost in California?
Independent Medical Review evaluation fees vary depending on the complexity of the case and the physician's specialty. Under California's Official Medical Fee Schedule (OMFS), medical-legal evaluation rates are updated annually. For current 2026 rates, consult the DWC fee schedule or contact IMEPro for guidance.