Aetna Fax Number — Fax Claims and Prior Authorizations
Aetna handles claims, prior authorizations, enrollment changes, and appeals through different intake fax numbers, so there isn't one line that covers everything. The correct number depends on what you're submitting and which Aetna plan the member has, and it's usually printed on the form itself or in your plan documents. For provider-side submissions like credentialing or prior authorization, the number often appears on Aetna's provider portal forms or the denial letter you're responding to.
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Aetna Fax Number
Contact Aetna for department-specific fax number
Hours: Aetna claims department typically operates Monday-Friday, 8:00 AM - 6:00 PM ET.
Send a Fax NowWhat You Can Fax to Aetna
- Medical claims
- Prior authorization requests
- Enrollment and disenrollment forms
- Provider credentialing documents
- Appeals and grievances
Tip: Write your member ID or policy number and the claim number on every page, because Aetna's intake teams index documents by those identifiers. For a prior authorization, attach the diagnosis code, procedure code, and the clinical notes that justify the request, since incomplete submissions get returned and delay the decision. Send through Send FAX Mail so you keep a timestamped delivery confirmation as proof you met any filing deadline.