Is there a time limit in CA for a insurance carrier to ask for a refund from the provider?

In California, insurance carriers typically have a time limit of 18 months from the date of payment to request a refund from a healthcare provider for overpayments or billing errors. However, this timeframe can vary depending on the specific terms of the insurance contract or applicable regulations. It's important for providers to review their contracts and stay informed about any changes in laws or regulations that may affect refund requests.