CA AB1048

Requires employers to include specific contract information in medical bill explanations of review when payment adjustments or denials are based on a contract, including contact information for the rendering provider to request a copy of the underlying contract

Mandates automatic reprocessing and payment at official medical fee schedule rates if the underlying contract is not sent to the rendering provider or their agent within 30 business days of the provider's request

Requires the explanation of review to include the state-assigned medical provider network identification number applicable to the bill

Specifies that requests for authorization of medical services must be signed by the treating physician and may be submitted via mail, fax, or electronic methods including secure email or electronic data interchange

Limits contract disclosure to the rendering provider or their agent once within a 365-day period and clarifies that the underlying contract is the one associated with the rendering provider's tax identification number and the listed medical provider network