For eligibility or benefit questions, authorization information, or claim status, please contact customer service or login to the provider portal at AskAllegiance.com.

If you would like to initiate a 30-day open negotiation period, as permitted by law, please contact Multiplan by sending an email to NSAService@multiplan.com or by calling 888-593-7427. If the 30-day negotiation period does not result in a determination, you may initiate the applicable dispute resolution process within four days after the end of the open negotiation period. The Independent Dispute Resolution (IDR) process is also through Multiplan at the email and phone number above. For additional information please visit here.