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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.

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What 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.

Faxing to Aetna — FAQ

It depends on the document type. Claims, prior authorizations, enrollment forms, and appeals each route to a different Aetna intake line, and the number is generally listed on the specific form or in your plan paperwork.

Put the member ID and claim number on every page along with the supporting documentation Aetna requests. Keep the delivery confirmation from Send FAX Mail in case you need to prove the claim was filed on time.

Turnaround depends on urgency. Standard health insurance claims are usually processed within about 30 days, while prior authorizations are decided faster, with urgent requests often answered within 24 to 72 hours.

No. Send FAX Mail works from your email and browser, so you can submit claims and authorization requests without a fax machine. Plans start at $12.99/month with a monthly page allowance, and a high-volume practice that outgrows one plan moves up to a larger tier instead of paying per page. A 7-day free trial lets you send a test claim to Aetna before you commit.

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