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How to send a fax to Aetna — Prior Authorization ((888) 632-3862)

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Opens the send form with this number prefilled ($1.99 for up to 3 pages).

Medical prior authorization — verify against your plan’s directory; numbers may vary by region.

Steps

  1. Click Send fax now—your browser opens RonFax with (888) 632-3862 in the recipient field (country code +1).
  2. Upload a PDF or image (max 8 MB). Word files must be exported to PDF first.
  3. Enter your name and email, review the price (from $1.99 for up to 3 pages), pay securely, and submit. Track status on the page we provide after checkout.

Full institution profile — fax line details and optional letter template.