Submitted the application thru provider express, below is the email we received for refence.  Thank you for your request to join the Optum behavioral health network! The Network Participation Request Form for Eliza Rodrigues has been received and will now proceed to Network Management for review. We will contact you if additional information is needed.    You can now easily track the status of your online submission using the new Credentialing Status Toolbar. To access the Toolbar, log into providerexpress.com using your Optum ID, click the Join our Network link in the upper right corner and then select Check Initial Credentialing Status. If you need assistance, please contact our Provider Express Support Center at 1-866-209-9320.  Regards,  Optum Network Services