ABA Is Growing And So Is the Scrutiny: What CMS’s New ABA Toolkit Means for Providers

Applied behavior analysis (ABA) has experienced tremendous growth over the past several years. More children are receiving services, more providers are entering the field, and Medicaid programs across the country are spending significantly more on ABA.

But with that growth comes increased attention.

In August 2026, the Centers for Medicare & Medicaid Services (CMS) released a new State Medicaid and CHIP Applied Behavior Analysis (ABA) Toolkit designed to help states strengthen oversight of ABA services. CMS says the toolkit is intended to support medically necessary, individualized, evidence-based care while helping states address concerns related to inappropriate treatment, fraud, waste, abuse, provider qualifications, and billing practices.

For ABA providers, this is an important development heading into 2027.

Why Is CMS Focusing More Attention on ABA?

According to CMS, Medicaid and CHIP spending on ABA increased by 421% between 2021 and 2025, while the number of children with an autism spectrum disorder diagnosis receiving services increased by 67% during the same period.

That rapid growth has prompted questions about how states can ensure that ABA services remain clinically appropriate, individualized, and financially sustainable.

CMS specifically points to several areas where states can strengthen oversight, including:

• Medical necessity

• Treatment intensity

• Provider qualifications and supervision

• Provider enrollment and credentialing

• Utilization management

• Payment methodologies

• Program integrity

• Fraud, waste, and abuse

• Billing practices

Importantly, CMS states that the toolkit does not create new federal requirements or direct states to reduce access to medically necessary ABA services. Instead, it provides states with tools and recommendations they may use when evaluating their own Medicaid programs.

What Does This Mean for ABA Providers?

The biggest takeaway is not that ABA providers should expect services to disappear or become universally restricted. The takeaway is that operational accuracy is becoming increasingly important.

As states respond to the growing financial and regulatory attention surrounding ABA, providers may face greater scrutiny around whether services are:

1. Properly authorized

2. Medically necessary

3. Delivered by appropriately qualified professionals

4. Properly documented

5. Billed according to payer requirements

6. Supported by accurate provider enrollment and credentialing

A strong clinical program and a strong administrative infrastructure increasingly go hand in hand.

Documentation and Billing Matter

Good clinical care can still run into problems when administrative processes are inconsistent.

A missing credential, an outdated provider record or CAQH profile, an incorrect authorization, a coding error, or documentation that does not support the services billed can create delays and financial risk.

As payer oversight increases, ABA organizations should consider regularly reviewing:

• Provider credentialing and enrollment status

• Authorization requirements

• Documentation requirements

• Claims submission processes

• Denial trends

• Underpayments

• Payer-specific billing rules

• Internal compliance procedures

The goal isn't simply to avoid denials. It's to create a system where the organization's clinical, credentialing, authorization and billing processes work together.

What Should ABA Leaders Do Now?

There is no single checklist that will apply to every ABA organization because Medicaid requirements vary by state and payer. However, organizations can use this moment as an opportunity to evaluate their administrative infrastructure.

We need to be asking ourselves:

• Are our providers credentialed correctly?

• Are we keeping up with payer-specific requirements?

• Are our authorizations being monitored proactively?

• Are our claims supported by appropriate documentation?

• Do we know why our claims are being denied?

• Are we monitoring changes in Medicaid policy before they affect our operations?

These questions become increasingly important as the ABA industry matures.

Looking Ahead to 2027

ABA is entering a period where growth and accountability will increasingly exist side by side. CMS's new toolkit does not mean that medically necessary ABA services are going away. It does, however, demonstrate that federal and state Medicaid programs are paying closer attention to how ABA services are delivered, authorized, documented, credentialed and reimbursed.

For ABA organizations, the best preparation may be surprisingly practical: build strong systems before you need them.

Accurate credentialing, clean documentation, proactive authorization management, and effective revenue cycle processes can help organizations spend less time chasing administrative problems and more time focusing on the children and families they serve.

At Arohana Support, we help ABA and pediatric therapy organizations manage the administrative side of their businesses from credentialing to revenue cycle management support.

If you're nervous about the changes and want to talk to one of our team members, schedule a time to chat with us today!