What is the fax number for Aetna — Prior Authorization?

The commonly listed fax line for Aetna — Prior Authorization (Aetna Prior Authorization) is (888) 632-3862. Always confirm on the institution’s latest instructions before you send — numbers can change.

How do I fax to Aetna — Prior Authorization online without a fax machine?

Open the send form on this page (number is pre-filled), upload a PDF or image, pay, and RonFax transmits the fax for you. You’ll get a status page and email confirmation when delivery completes.

How much does it cost to send a fax to Aetna — Prior Authorization?

RonFax is pay-as-you-go: $1.99 covers up to 3 pages, then $0.50 per extra page. No monthly plan required.

What should I include when faxing Aetna — Prior Authorization?

Typical packets include: Member ID and group number; Patient demographics and diagnosis codes; Provider NPI and requested services; Supporting clinical documentation. Use a cover page if the institution asks for a subject or routing note.

Is this an official Aetna — Prior Authorization page?

No — this is an independent send guide from RonFax. We help you transmit documents to the listed number; we are not affiliated with Aetna — Prior Authorization. Verify requirements on their official site when unsure.

Fax to Healthcare & prior auth

How to Fax to Aetna — Prior Authorization: Step-by-Step Guide

Healthcare & prior auth

Aetna — Prior Authorization

Hartford, CT

Verified Mar 2026

Fax number

(888) 632-3862

Pre-filled below — send online in about a minute. No fax machine.

Send this fax online →

What to include

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

Send your fax

Quick info

Department: Aetna Prior Authorization

Fax line: (888) 632-3862

Include member ID and group number on the cover page
Attach clinical notes required for your CPT codes
Use prescriber NPI on all forms

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

Prerequisites — what to prepare

Before you fax Aetna — Prior Authorization, gather these items into one PDF when possible:

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

Step-by-step — send via RonFax

No fax machine required. Pay once from $1.99 for up to 3 pages ($0.50 per extra page).

Merge completed prior auth form + clinical PDFs.
Verify fax number on your Aetna authorization form.
Send via RonFax from home or clinic — no fax machine required.

Back to send form ↑

Frequently asked questions

What is the fax number for Aetna — Prior Authorization?: The commonly listed fax line for Aetna — Prior Authorization (Aetna Prior Authorization) is (888) 632-3862. Always confirm on the institution’s latest instructions before you send — numbers can change.
How do I fax to Aetna — Prior Authorization online without a fax machine?: Open the send form on this page (number is pre-filled), upload a PDF or image, pay, and RonFax transmits the fax for you. You’ll get a status page and email confirmation when delivery completes.
How much does it cost to send a fax to Aetna — Prior Authorization?: RonFax is pay-as-you-go: $1.99 covers up to 3 pages, then $0.50 per extra page. No monthly plan required.
What should I include when faxing Aetna — Prior Authorization?: Typical packets include: Member ID and group number; Patient demographics and diagnosis codes; Provider NPI and requested services; Supporting clinical documentation. Use a cover page if the institution asks for a subject or routing note.
Is this an official Aetna — Prior Authorization page?: No — this is an independent send guide from RonFax. We help you transmit documents to the listed number; we are not affiliated with Aetna — Prior Authorization. Verify requirements on their official site when unsure.

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