Skip to content

Frequently Asked Questions:

CPAP & Oral Appliance Therapy (OAT) Referrals

What if I have insurance or cost questions?  

The CPAP or oral appliance supplier is responsible for obtaining authorization. They will be able to answer all questions you have about insurance coverage or cost.

How do I know when my referral has been processed?

ADVENT’s External Referral department will notify you that your external referral has been processed via email. Please allow 5-7 business days for ADVENT to process your referral.  This email will contain status information, name, and contact information of the CPAP or oral appliance supplier that will be working with you. You'll also get direct contact information of ADVENT External Referral Liaison for future questions or concerns. (If you can't seem to find this email, please check your spam folder.)


Once the supplier has received your referral, they will be in contact with you within 5-7 business days. If you haven’t heard from them within a week of receiving the email from ADVENT, please contact us.

What if I have a question regarding the billing of a device or machine?

Please contact the supplier of your CPAP machine or oral appliance.

What are the follow-up processes once I get my CPAP Machine?

Typically, a 30-day CPAP Compliance is scheduled with ADVENT. Here we will check in with you to see how the device is working for you. We'll also check to see if any adjustments need to be made. Also, once a year, you will have an annual visit with ADVENT to monitor your compliance with the device and to order additional supplies.

Who can help answer questions about pressure settings or symptoms?

Contact ADVENT at 888.938.3838 to discuss your questions or concerns. You can also schedule a visit with a Physician Assistant to review CPAP Compliance and symptoms.

What if I need help setting up new Equipment?

Please contact the CPAP or oral appliance supplier to assist you with any questions about equipment or setup.

More questions? Give us a call...we're here to help: