Service Delivery

Science over Cynicism: The Race to Preserve Best-Practice Applied Behavior Analysis through Expanded Awareness, Advocacy, and Enforcement of the Mental Health Parity and Addiction Equity Act

Kornack et al. (2025) · Behavior Analysis in Practice 2025
★ The Verdict

Insurance caps on location, age, hours, or caregiver presence may violate federal parity law—document and report them.

✓ Read this if BCBAs who bill insurance for kids with autism in any setting.
✗ Skip if Researchers looking for single-case data on skill acquisition.

01Research in Context

01

What this study did

Kornack et al. (2025) reviewed how insurers limit ABA for kids with autism.

They looked at age caps, site limits, hour cuts, and rules that parents must watch.

The paper says these limits break the Mental Health Parity and Addiction Equity Act.

02

What they found

The authors found that many denials are illegal under federal parity law.

They give step-by-step ways to spot, log, and fight each type of limit.

03

How this fits with other research

Kornack et al. (2025) mirrors Kornack et al. (2025) on MUE abuse. One paper targets parity law; the other targets billing-code caps. Both say the same thing: hour limits are unlawful.

Brown et al. (2020) and Brown et al. (2023) show that one in three BCBAs face job handcuffs called non-competes. The 2025 paper adds that insurance handcuffs also push people out of the field.

Cox (2024) looks ahead to value-based care. Once parity fights win, payers will still ask for cost and quality data. The 2025 paper wins the battle; Cox shows the next war.

04

Why it matters

You can start using this today. Keep a simple log of every denial that cites age, site, or hour limits. Quote the parity law in your appeal letter. One extra hour approved is one more hour your client can learn.

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→ Action — try this Monday

Start a shared spreadsheet: date, denial reason, exact words from the letter—then file an appeal citing parity law.

02At a glance

Intervention
not applicable
Design
narrative review
Population
autism spectrum disorder
Finding
not reported

03Original abstract

Widespread insurance funding of applied behavior analysis (ABA) as a medically necessary mental health benefit in the treatment of autism spectrum disorder (ASD) has placed behavior analysts in the role of health-care providers, and the race is on to see whether best-practice ABA will be defined by the insurance industry or behavior analysts. Behavior analysts who work with insurance and/or Medicaid have increasingly encountered payor guidelines that interfere with their efforts to implement treatment plans that reflect generally accepted standards of care. When these arbitrary limits are integrated into ABA practices, payors—not science—are shaping how ABA is implemented. Many common payor guidelines, such as location exclusions, caregiver participation requirements, and age and hour limits, violate the federal Mental Health Parity and Addiction Equity Act (MHPAEA). For the first time since MHPAEA became law, federal agencies are scrutinizing payor guidelines and practices through the lens of MHPAEA and working to increase compliance. In this new climate of MHPAEA enforcement, behavior analysts are uniquely positioned to identify, reject, and report improper guidelines that constrain their ABA practices and promote best practices to optimize patient outcomes. This review of MHPAEA in the context of ABA highlights common violations and current advocacy and aims to equip behavior analysts with the tools to free their practices from improper limits. The online version contains supplementary material available at 10.1007/s40617-024-00932-2.

Behavior Analysis in Practice, 2025 · doi:10.1007/s40617-024-00932-2