Member portal·aetna.com member secure inbox
Appeals fax·1-860-975-1526
Corporate Member Appeals·PO Box 14511, Lexington, KY 40512
Sign in at Aetna.com and send the appeal + attachments through the secure message inbox.
For Aetna denials
Carrier · Aetna · appeal letterHow to appeal a denied claim for Aetna.
Aetna is one of the largest U.S. health-insurance carriers — operating in all 50 states under the CVS Health umbrella with products keyed to the issuer state of the contract (Aetna Health & Life, Aetna Health of California, Aetna Life Insurance Company, Aetna Health Insurance Company of New York, and the Medicare Advantage product issued through SilverScript and Coventry). The published appeals framework is the aetna.com member-portal secure-message inbox plus the federal-mandated 1-860-975-1526 appeals fax and the corporate Member Appeals address at PO Box 14511, Lexington, KY 40512 — and the same federal frameworks that apply to any other ACA / Medicare / Medicaid plan apply on the appeal, including the ACA Nondiscrimination obligation at 45 C.F.R. § 147.136, the Medicare appeals framework at 42 C.F.R. § 422, the controlling state Medicaid appeal contract for state-contract Medicaid plans, and the ERISA § 503 procedure at 29 C.F.R. § 2560.503-1 for self-funded employer plans.
01 · What this carrier looks like
An Aetna denial — and the carrier-published appeals framework that applies to it.
Aetna is one of the largest U.S. health-insurance carriers by enrollment — operating as the health-insurance subsidiary of CVS Health, headquartered in Hartford, Connecticut, with state-specific products that include Aetna Health of California, Aetna Health Insurance Company of New York, Aetna Health & Life, Aetna Life Insurance Company, and the SilverScript / Coventry Medicare Advantage products. EOB reason codes for an Aetna denial are typically 'precertification not obtained,' 'medical necessity not established,' 'step-therapy criteria not satisfied,' 'not a covered benefit / non-formulary drug,' or 'out-of-network provider.' The published appeals channels are the aetna.com member-portal secure-message inbox, the 1-860-975-1526 federal-mandated appeals fax, and the corporate Member Appeals address at PO Box 14511, Lexington, KY 40512 — the address on the back of the Aetna member ID card. Most state affiliates converge on this trio, though state-licensed Knox-Keene HMO affiliates operate their own UR agent framework under Cal. Health & Safety Code § 1368 in California.
Aetna appeals on the federal-framework side run through three channels. ACA marketplace plans operate under the Nondiscrimination obligation at 45 C.F.R. § 147.136 with the four-month external-review window at (d) attaching on the second-stage level. The ERISA § 503 claims-procedure rule at 29 C.F.R. § 2560.503-1 governs self-funded employer plans with the 180-day internal-appeal window keyed to the Adverse Benefit Determination under (h)(3)(i), and Aetna's Group Service Agreement and SPD apply on the underlying plan-document claims-procedure section. The controlling state adverse-determination statute applies for fully-insured Aetna plans operating in licensed states — California's Knox-Keene under Cal. Health & Safety Code § 1368 and Cal. Ins. Code § 10169 with the 180-day DMHC IMR window, New York's N.Y. Ins. Law § 3214-a with the 30-day internal window, Texas TDI under Texas Insurance Code Chapter 21 § 21.58A with the 30-day internal / 4-month IRO window, and so forth across the 50-state footprint.
A well-built Aetna appeal letter cites the controlling state adverse-determination statute (for fully-insured plans) or the federal framework that applies to the plan type, attaches the EOB-side documentation, and frames the request to land in the right one of Aetna's three published channels — the aetna.com member-portal secure-message inbox (best for first-stage internal appeals), the 1-860-975-1526 federal-mandated appeals fax (best for expedited review or post-stabilization care), or the corporate Member Appeals address at PO Box 14511, Lexington, KY 40512 (best for the offline mail-in path with fax-confirmation tracking). The letter branches on whether the controlling review window is the four-month ACA federal external review, the state statutory 60-day / 180-day, the 180-day ERISA internal, or the expedited 72-hour / 7-day window for ongoing treatment.
01 · The three Aetna denial shapes we see most
- 01
Imaging or procedure precertification not obtained
An Aetna denial letter cites 'precertification not obtained' on the EOB — the prior-auth defect is procedural, the underlying clinical record is still on file, and the appeal attaches the prior-auth reference number, the referring-physician's order, and the documentation that was already on the clinical record at the time the Aetna Adverse Benefit Determination was issued. The appeal frames the precertification defect as the eligible waiver basis, cites the controlling state adverse-determination statute (or 45 C.F.R. § 147.136 for ACA plans, or 29 C.F.R. § 2560.503-1 for self-funded ERISA), and asks for reprocessing at in-network cost-share on the existing clinical record.
- 02
Pharmacy step-therapy exception denied
An Aetna pharmacy denial cites 'step-therapy criteria not satisfied' or 'fail-first required' on the prescribed drug — the documentation in the clinical record shows prior failure on the formulary-preferred step or a clinical contraindication, and the appeal attaches the prior-failure documentation, frames the step-therapy exception under the ACA Nondiscrimination rule at 45 C.F.R. § 147.136, and asks for a one-time formulary exception with retroactive prior-auth waiver on the controlling state statute or ERISA § 503 framework.
- 03
Out-of-network or balance-billing dispute routed to Aetna
An Aetna enrollee who received out-of-network or balance-billing on a non-emergent specialty visit where the directory showed no qualified in-network specialist within the plan's geographic and appointment-access standards. The dispute is a network-adequacy dispute, not a coverage denial — the appeal cites the controlling state network-adequacy statute, attaches the directory lookup and the appointment-access record, and asks for reprocessing at in-network cost-share or a single-case agreement under the Aetna Letter Review / Appeals framework at 1-860-975-1526.
01 · Aetna's published channels
Aetna
02 · Frequently asked
The Aetna-published appeals framework, the federal-mandated 1-860-975-1526 fax, and the state affiliates that attach on an Aetna denial.
Three questions an Aetna member typically has before drafting the appeal — with the federal-mandated appeals fax, the corporate Member Appeals address, and the controlling federal or state regime attached to each answer.
03 · Submit the Aetna denial
The same EOB — defended with the published 1-860-975-1526 fax + the corporate Member Appeals address.
Upload the most recent Aetna denial letter or EOB, answer the four short intake questions, and Denvow picks the ACA Nondiscrimination rule under 45 C.F.R. § 147.136, the ERISA § 503 procedure under 29 C.F.R. § 2560.503-1, or the controlling state adverse-determination statute (Cal. Ins. Code § 10169 / N.Y. Ins. Law § 3214-a / Tex. Ins. Code § 21.58A / Florida Statutes § 627.646 / 215 ILCS 134/20) — and the letter branches on whether you're at the first-stage internal appeal or the four-month ACA / state 60-day / 180-day DMHC IMR external-review channel.
Already in the intake? Type "Aetna" in the Insurer field on the form — the channel lookup keys off the typed name and the 1-860-975-1526 appeals fax plus the PO Box 14511 mailing address are the published channels. Answer the rest of the four questions and submit.
03 · Submit the Aetna denial
Denvow is template-and-tooling, not legal counsel. For denials that genuinely need litigation, an ERISA fiduciary complaint, or a state-court remedy, we recommend a licensed attorney in the relevant jurisdiction — and will say so when we see one.
Looking for state-specific guidance? Read the Georgia denial guide →·Read the New Jersey denial guide →