Aetna denied prior authorization? Here’s what to do
Summary: Aetna prior-auth denials cite the CPB criteria that were not met; the peer-to-peer is set up through the provider precertification line. A Aetna prior-authorization denial can usually be appealed with a letter of medical necessity from your doctor — and an expedited appeal if your health is at risk.
Why Aetna denied prior authorization
- The request lacked a letter of medical necessity or clinical notes.
- Aetna considers the service experimental or not medically necessary.
- A formulary or step-therapy rule required trying another option first.
- The request used the wrong code or was missing supporting records.
Calling Aetna: what to expect
Aetna’s line is 1-800-872-3862; member services is typically Mon–Fri, roughly 8am–6pm in your time zone; some plans staff weekends.
To reach a person: enter or say your Aetna member ID, then say "claims" for a denial, or "authorization" for a prior-auth question, then say "representative" to reach a person. Menus change — if yours does not match, say "representative" at any prompt.
Self-service runs through Aetna Health app / aetna.com (https://www.aetna.com); the written route is the Aetna Member Complaint and Appeal Form (available on aetna.com; a letter with the same details is also accepted); and you may see these names on your paperwork: Aetna Health app, CVS Caremark (pharmacy).
Step by step: what to do
- Call Aetna at 1-800-872-3862 (enter or say your Aetna member ID, then say "claims" for a denial, or "authorization" for a prior-auth question, then say "representative" to reach a person) and get the precise reason for the prior-auth denial.
- Ask your prescriber to submit a letter of medical necessity with clinical notes.
- Request a peer-to-peer review between your doctor and the Aetna medical director.
- File a written appeal through the appeal address on your denial letter or the Aetna member portal before the 180 days from the date of the denial deadline.
- If your health is at risk, request an expedited (urgent) appeal.
Common mistakes to avoid
- Waiting on the doctor’s office instead of driving the appeal yourself.
- Skipping the peer-to-peer review, which often resolves the denial fastest.
- Not requesting an expedited appeal when the delay could harm your health.
What to say when you call Aetna
- I’m appealing a prior-authorization denial and want to schedule a peer-to-peer review.
- Please tell me exactly what clinical documentation is missing.
- If this is time-sensitive, I’m requesting an expedited appeal.
Aetna-specific things to know
- Aetna prior-auth denials cite the CPB criteria that were not met; the peer-to-peer is set up through the provider precertification line.
- Pharmacy prior auths run through CVS Caremark, which handles its own appeals.
- Aetna is part of CVS Health, so pharmacy denials come from CVS Caremark and have their own appeal process and phone line.
- Aetna Medicare Advantage members use a different member services number and a Medicare appeals timeline (60 days, not 180).
- The Aetna Health app shows claim status and lets you message member services; written messages are a paper trail.
- Aetna’s clinical policy bulletins (CPBs) are public — a denial usually cites one, and reading it tells you exactly what documentation would overturn it.
Know your rights
You have the right to a written explanation of any denial, to a full copy of your plan documents, and to appeal — first internally, then through an independent external review.
Regulator: your state Department of Insurance (and the federal No Surprises Act). If the internal appeal fails, request an external review and file a complaint with your state Department of Insurance.
If Aetna will not move, the escalation paths that carry weight:
- Ask for a second-level appeal if your plan offers one, or an expedited appeal when a delay would harm your health.
- Request independent external review — Aetna uses an independent review organization once internal appeals are done.
- File with your state Department of Insurance, or the Department of Labor for employer plans.
Don’t sit through Aetna’s phone menu
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Frequently asked questions
What is a peer-to-peer review?
It is a call between your treating doctor and a Aetna medical director to reconsider the prior-authorization denial. It often resolves denials faster than a written appeal alone.
How fast is an expedited appeal?
When a delay could seriously jeopardize your health, plans must decide an expedited appeal much faster than a standard one — often within 72 hours.
Do Aetna Medicare members appeal the same way?
No. Aetna Medicare Advantage plans follow Medicare appeal rules — a 60-day window and a different member services number. Use the number on your Medicare card.
What is an Aetna Clinical Policy Bulletin?
A public document setting out when Aetna considers a service medically necessary. Denials usually cite one, so it tells you exactly what your appeal needs to show.
Where do I file an Aetna appeal?
At the address on your denial letter, or through the Aetna Health app or aetna.com. Keep proof of the date you sent it.