State guide

Washington

Programs, dollars, and people that serve autism families in Washington. Federal protections always apply on top of what you see here.

Washington overview

Washington State's Developmental Disabilities Administration (DDA) within DSHS administers Medicaid HCBS waiver services. Apply through DDA as early as possible — Washington's Supported Living and Community Access waiver programs have waitlists. For early intervention, contact Washington's Early Support for Infants and Toddlers (ESIT) program. Washington PAVE is the state's PTI center, one of the most resource-rich in the Northwest. The University of Washington Autism Center is a major clinical and research resource. Washington State mandates ABA insurance coverage.

Verify program names, URLs, and eligibility on official .gov sites — these change.

⏰ Act now — Medicaid waiver waitlist

DDA waivers — Basic Plus, Core, CIIBS, IFS, Community Protection

Typical wait: Usually none — but enrolling in DDA is not the same as getting services

Enroll with DDA first, then ask separately to be evaluated for a specific waiver. Families routinely complete enrollment and assume they are done — enrollment only establishes that you are eligible.

Washington runs five DDA waivers. Ask about CIIBS, Basic Plus and IFS by name.

Apply or learn more →Compare all 50 states

Statewide resources

These four programs exist in every state and are the fastest entry points for most families.

Parent Training & Information (PTI)

Washington PAVE

(800) 572-7368

Federally funded — free help with IEPs, evaluations, and special ed rights.

Insurance Coverage

Whether private insurance must cover autism treatment in Washington.

Washington requires insurance to cover autism treatment

RCW 48.46.291 and 48.44.341 (mental health parity)

Ages:
No autism-specific age limit. Washington does not run a separate autism mandate with its own ceiling — autism is covered as a mental health condition under the DSM categories, so the limits that apply are the ones that apply to medical and surgical care.
Limits:
No autism-specific cap. The statute allows treatment limitations and financial requirements on mental health services ONLY if the same limitations are imposed on medical and surgical coverage. Deductibles and out-of-pocket maximums must be single and shared, not separate for mental health.

Self-funded employer plans (ERISA) are typically exempt — ask your HR department which type of plan you have.

How to use it, and how to appeal a denial →

Medicaid Waiver

Home and community-based services (HCBS) for autism families in Washington.

DDA waivers — Basic Plus, Core, CIIBS, IFS, Community Protection

Developmental Disabilities Administration (DDA), Washington DSHS

Children and adults with developmental and intellectual disabilities, including autism.

How autism qualifies

Autism is within the DDA target population. Eligibility is established from documentation — educational, psychological and medical records — rather than a single diagnostic letter.

What it can pay for

  • Respite
  • Behavioral supports and consultation
  • Personal care
  • Employment and community inclusion
  • Specialized equipment and environmental modifications
  • Intensive in-home behavioral supports (CIIBS)

How the waiting list is ordered

Washington is one of the better states on waiting: DDA waivers generally do not operate a queue, and eligibility determinations are made within 30 days of complete documentation. The catch is procedural rather than numerical. **Applying for DDA enrollment is not the same as requesting services.** Enrollment establishes that you qualify; you then have to ask separately to be assessed for a particular waiver. Families complete enrollment, hear nothing, and assume they are waiting in a queue when in fact no request is pending.

How to apply

Apply for DDA enrollment through DSHS, submitting educational, psychological and medical records. Eligibility is determined within 30 days of them having everything. Once enrolled, contact your case resource manager and ask explicitly to be evaluated for CIIBS, Basic Plus and IFS.

Full Washington waiver detail and sources →

Verified August 2026 against 4 official sources.

Medicaid Managed Care

How Medicaid pays for ABA therapy in Washington.

Apple Health (Washington Medicaid)

ABA covered: All ages

Find or choose your plan

Washington State Health Care Authority (Apple Health) — enroll in or change health plans

(800) 562-3022Official page →

Plans in this state

  • Community Health Plan of Washington
  • Coordinated Care
  • Molina Healthcare of Washington
  • Wellpoint Washington
1 more — see Washington's full plan list →

Apple Health has five managed care plans, and not all are offered in every area; on the state's January 2026 map, UnitedHealthcare does not appear in every region. To start ABA, a client first gets an evaluation and ABA order from an HCA-approved Center of Excellence, and clients 21 and older must see a neurologist, psychiatrist or psychologist. The ABA provider then requests prior authorization, and the state advises getting on several providers' wait lists.

⚠️ Prior authorization is required before starting ABA services.

Checked against 5 official sources, September 2026. Plans change when states rebid contracts, so confirm with the state.

Washington guides

Deeper guides where the facts are genuinely specific to Washington.

Financial help for autism in Washington

SSI, Medicaid, the waiver and what insurers must cover — and which to apply for first.

Autism evaluation in Washington

The two free routes, the deadlines they run against, and verified diagnostic providers.

ABA therapy in Washington

Verified providers, what the state mandate covers, and the questions to ask.

Washington insurance mandate

The statute, the caps, and how to complain when a plan ignores it.

Therapy & care

  • Washington Early Support for Infants & Toddlers (Part C)
  • Autism Society of Washington
  • UW Autism Center

Respite & crisis

  • Washington DDA — Developmental Disabilities Administration