Supporting documentation is required with all submissions for dispute to be considered.
FAX: 1-866-560-2090; ATTN: Provider Claim Disputes
IMPORTANT NOTE: Your request must be received in writing and will only be reviewed through this dispute process once. Requests can take up to 60 days to process and review. If you have not received a response after 60 days from submission, you can email providercustomerservice@atriohp.com to check the status of the dispute.
Hours: Monday - Friday, 8AM - 5PM PST.