California Code, Health and Safety Code - HSC § 1373.7

A health care service plan contract, which is written or issued for delivery outside of California and which provides benefits for California residents that are within the scope of psychological practice, shall not be deemed to prohibit persons covered under the contract from selecting a psychologist licensed in California to perform the services in California which are within the terms of the contract even though the psychologist is not licensed in the state where the contract is written or issued for delivery.