Aetna Behavioral Health Appeals in New York
Appealing an Aetna behavioral health denial in New York means tracking two separate clocks: Aetna's own 30-day Level-1 appeal window, and New York's 45-day prompt-payment statute (NY Ins. Law § 3224-a) for clean-claim payment. This guide covers both, plus Aetna's filing address and New York's parity protections.
Where to file your Aetna appeal
P.O. Box 14463
Lexington, KY 40512
30 calendar days
60 days from Level-1 denial
1-860-754-2985
New York's prompt-payment window
In New York, state-regulated (fully-insured) plans — including many Aetna plans — generally must pay or formally respond to a clean claim within 45 calendar days under NY Ins. Law § 3224-a. This deadline does not bind self-funded ERISA plans. This is a claim-payment deadline, not the appeal-decision deadline. If Aetna missed this window on your claim, cite it as a separate payment violation alongside your Aetna appeal — not as the deadline for the appeal decision itself.
Clean-claim payment window: 30 days EFT / 45 days paper under NY Ins. Law § 3224-a. This is a claim-payment deadline, not an appeal-decision deadline. Mental Health Parity Law (Ins. Law § 3221(l)) applies.
MHPAEA parity for Aetna in New York
New York adds state-level parity protection
New York's Mental Health Parity Law (Ins. Law § 3221(l)) applies to fully insured plans and requires parity in coverage, copays, deductibles, and out-of-pocket maximums for mental health and SUD. The NY Department of Financial Services (DFS) enforces parity independently. NYDFS has taken enforcement actions against payers for NQTL violations since 2022, and those actions continue regardless of federal non-enforcement.
Statute: NY Ins. Law § 3221(l) (verify current subsection) (confirm the current section before citing)
Aetna's parity posture: Aetna publishes MHPAEA comparative analyses on request; behavioral health benefits are administered through Aetna Behavioral Health. Document parity violation in detail — Aetna's internal process requires a specific MHPAEA flag in the appeal routing system.
When appealing an Aetna denial in New York on a state-regulated, fully-insured plan, cite both federal MHPAEA (29 CFR § 2590.712) and NY Ins. Law § 3221(l) (verify current subsection) (confirm the current section before citing) together — the state statute remains in force regardless of the 2025 federal non-enforcement of the 2024 MHPAEA Final Rule. Self-funded ERISA plans are preempted from state insurance law, so rely on federal MHPAEA alone there.
Common Aetna denial codes
New York's insurance commissioner
If your internal Aetna appeal is denied, New York's Department of Insurance can help with a complaint or external review for fully-insured plans. Look up the official contact via the NAIC consumer locator.
Note: self-funded ERISA plans are generally exempt from state insurance regulation. If your patient's Aetna plan is employer-sponsored and self-funded, your remedies run through the U.S. Department of Labor (EBSA) rather than New York's commissioner.
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Generate my appeal letter →Frequently asked questions
How long does Aetna have to respond to an appeal in New York?
Aetna generally has 30 calendar days to respond to a Level-1 appeal. If denied, you have 60 days to request external review. Separately, New York's prompt-payment statute gives payers 45 days to respond to a clean claim (NY Ins. Law § 3224-a) — a different deadline governing claim payment, not the appeal decision.
Does MHPAEA apply to Aetna in New York?
Generally, yes — for Aetna's group health plans. Federal MHPAEA applies to Aetna's group health plans in New York. NY Ins. Law § 3221(l) (verify current subsection) (confirm the current section before citing) additionally applies for state-regulated, fully-insured plans — self-funded ERISA plans are preempted from state insurance law and rely on federal MHPAEA alone; where it applies, New York's state law remains in force regardless of the 2025 federal non-enforcement announcement.
Where do I mail or fax a Aetna appeal?
Mail to Aetna Appeals Department, P.O. Box 14463, Lexington, KY 40512. You can also fax to 1-860-754-2985. This address is the same nationally, including for New York providers.