Aetna prior authorization fax number

Aetna's fax number for pharmacy prior authorization on commercial plans, for drugs billed through the pharmacy benefit, is 877-269-9916. Aetna starts medical precertification on Availity, and specialty medication precertification forms go to 888-267-3277.

Which Aetna fax number handles which request?

Each Aetna fax number is tied to a service line, and the table below lists each number with the scope the guide or form prints for it.

The guide prints 800-540-2406 in its Northeast block and repeats it in other regional blocks. The specialty medication form also says Medicare Advantage precertification uses Aetna's separate Medicare fax forms. For Aetna provider appeals, see the Aetna provider appeals fax number.

What should I send with an Aetna prior authorization fax?

The Aetna specialty medication precertification form says to fax the completed form with clinical documentation to 888-267-3277. Aetna's precertification information request form says not to use that form to start a request. Start on Availity or by phone first, then fax the clinical records with the reference number from that start.

A cover sheet with your name, a return fax number and the page count is the usual addition beyond the form and the records. For the rest of a cover sheet, see the cover sheet requirements for a HIPAA fax.

Can I submit an Aetna prior authorization request online?

Yes, Aetna's provider guide recommends submitting all prior authorization requests digitally through Availity. Specialty drug prior authorization runs through the Novologix portal, which the guide says is accessed through Availity. The guide also offers a code search tool for up to 5 CPT codes at a time.

When the request still goes by fax, how to fax a prior authorization request covers the steps.

How do I fax Aetna without a fax machine?

Fax Pigeon sends the Aetna fax from your browser, so the practice needs no fax machine. Upload the completed form and the clinical records, add a cover sheet, and send to the Aetna number in the table that matches the request.

Every plan includes a signed BAA at signup, your own number and delivery proof for each fax. The Basic plan is $4.99 a month billed annually ($5.99 month to month) and includes 200 pages, sent plus received, with 10¢ for each extra page.

How do I confirm Aetna received my fax?

Each fax sent to Aetna from Fax Pigeon comes with delivery proof. Keep the reference number from your Availity or phone start, and fax the clinical records with that number, as the precertification form asks.

If a fax fails or Aetna changes a number, confirm the number on the Aetna pages named in the footer before you send again.

* Fax numbers verified October 13, 2026, on Aetna's own specialty medication precertification request form (PDF) (https://www.aetna.com/content/dam/aetna/pdfs/aetnacom/pharmacy-insurance/healthcare-professional/documents/specialty-medication-precert-request.pdf) and Aetna At-a-Glance provider guide (PDF) (https://www.aetna.com/document-library/healthcare-professionals/documents-forms/aetna-at-a-glance.pdf).