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Independent Medical Review (IMR) Determinations, Trend

Published by California Department of Managed Health Care | State of California | Catalog Last Checked: June 26, 2026 at 08:25 PM | Dataset Last Updated: June 01, 2026 at 01:00 PM
This data is from the California Department of Managed Health Care (DMHC). It contains all decisions from Independent Medical Reviews (IMR) administered by the DMHC since January 1, 2001. An IMR is an independent review of a denied, delayed, or modified health care service that the health plan has determined to be not medically necessary, experimental/investigational or non-emergent/urgent. If the IMR is decided in an enrollees favor, the health plan must authorize the service or treatment requested.

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