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Aetna Prior Authorization Fax Number — Send Online

RonFax Editorial · Online fax guides & destination research ·

Medical prior authorization and appeals when directed by plan materials.

Searching for the Aetna fax number usually means you already have a packet to send and need a reliable way to transmit it today.

RonFax dials the number on your notice. We are not affiliated with Aetna.

Aetna fax number (verify first)

A line commonly listed for Aetna — Prior Authorization is:

(888) 632-3862 · digits: 8886323862

Department commonly listed: Aetna Prior Authorization.

Pre-filled send page: Fax to Aetna — Prior Authorization.

Important: Prior auth fax numbers differ by plan and region — confirm on your Aetna form or provider portal.

What to include

  • Member ID and group number
  • Patient demographics and diagnosis codes
  • Provider NPI and requested services
  • Supporting clinical documentation

Merge into one PDF when possible. RonFax shows price before checkout ($1.99 up to 3 pages, $0.50/extra).

How to fax from your browser

  1. Open Fax to Aetna
  2. Confirm 8886323862 matches your official paperwork (edit if your letter differs)
  3. Upload your PDF
  4. Pay once and save your status URL

Also: email-to-fax (Gmail / Outlook).

Related guides


Confirm the fax on your official materials, then send from home in minutes.

Frequently asked questions

What is the Aetna fax number?
A commonly listed line is (888) 632-3862. Prior auth fax numbers differ by plan and region — confirm on your Aetna form or provider portal.
Can I fax Aetna without a fax machine?
Yes. Open the RonFax send page with the number pre-filled, upload a PDF, pay once, and track delivery.
Does RonFax process my paperwork?
No. RonFax only transmits the PDF you upload. Complete forms yourself and use the fax line on your official materials.

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