ABA Providers in Washington

How ABA coverage works in Washington

Medicaid

Apple Health. Under the federal EPSDT rule, Medicaid must cover medically necessary treatment for children under 21, which includes ABA where a clinician has documented the need. Prior authorization is normally required.

Under age 3

Start with your state's Part C early intervention program, which runs under Part C of IDEA. It is separate from insurance, it is low or no cost, and you do not need a diagnosis to request an evaluation.

Ages 3 and up

Your school district handles educational services through an IEP under Part B of IDEA. That is separate from insurance-funded ABA, and many families use both at once.

Commercial plans

Every state requires state-regulated health plans to cover autism services, though the specifics differ. Your plan documents and the provider's intake team are the two reliable sources for what yours actually covers.

The common exception

Self-funded employer plans follow federal ERISA rules rather than state mandates, so a state requirement may not apply. Many cover ABA regardless. Ask HR whether your plan is self-funded or fully insured.

These are federal rules that apply in every state, plus the name of the state Medicaid program. We deliberately do not publish per-state hour caps or age limits here, because those change and stale numbers are worse than none.