Supporting documentation is required with all submissions for dispute to be considered.
FAX: 1-866-339-8751; ATTN: Provider Claim Disputes
IMPORTANT NOTE: Request can take up to 60 days to process and review. If you have questions or would like to check the status of your request, please contact ATRIO Provider Customer Service 877-672-8620. Your request must be received in writing and will only be reviewed through this process once.
Hours: Monday - Friday, 8AM - 5PM PST.