If you are an Arta member or are interesting in becoming an Arta member, please contact our Customer Service Representative toll-free at 1-800-780-8879, Monday through Friday from 8:30 AM to 4:30 PM.
If you are an Arta provider, please contact us at 1-949-260-6500 for verification of member eligibility, the status of authorizations, claims payment look-up, or for any other information that you may need assistance with on Monday through Friday from 8:30 AM to 4:30 PM.
After hours and on weekends, providers may use Arta’s automated verification system, which is reached by calling 949-260-6500.