HMA, Inc's Third Party Administrator (TPA) is now Hawaii-Mainland Administrators, LLC (HMA). HMA continues to offer all of its valued clients the same administrative services as before. As such, if you're looking for information on a particular employer plan, healthcare claims, medical case management, prior authorization, member customer service, forms or documents, this is the correct website. If you're looking for specific information concerning the provider networks, click the logos below to search the AMN, RAN and/or HMN Networks.