Wash. Rev. Code § 48.102.051
(1) Except as otherwise allowed or required by law, a provider, broker, purchaser, insurance company, insurance producer, information bureau, rating agency or company, or any other person with actual knowledge of an insured's identity, shall not disclose the identity of an insured or information that there is a reasonable basis to believe could be used to identify the insured or the insured's financial or medical information to any other person unless the disclosure:
(e) Is necessary to allow the provider or broker or their authorized representatives to make contacts for the purpose of determining health status.
[ 2009 c 104 s 8.]