How to Get an Autism Diagnosis in Tennessee
Last updated April 23, 2026 - Reviewed by Autism Hearts Editorial Team
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A complete guide to autism evaluations in Tennessee, covering TEIS early intervention, the ECF CHOICES managed long-term supports program, TN's insurance mandate, and diagnostic centers including Vanderbilt Kennedy Center.
- Reviewed by Autism Hearts Editorial Team.
- Last updated April 23, 2026.
- Primary topic: how to get autism diagnosis in Tennessee.
Editorial Review
This guide is reviewed by the Autism Hearts editorial team and written to help families move from research into practical next steps.
It is educational content and should not replace medical, legal, insurance, or educational advice from licensed professionals and official state agencies.
Last reviewed April 23, 2026 by Autism Hearts Editorial Team
Medical Disclaimer: This guide is for educational purposes only and does not substitute for professional medical advice, diagnosis, or treatment.
If you're looking for how to get an autism diagnosis in Tennessee, the state is home to the Vanderbilt Kennedy Center — one of the nation's leading University Centers for Excellence in Developmental Disabilities — alongside a unique managed long-term supports program called Employment and Community First CHOICES (ECF CHOICES) that is specifically designed to support individuals with intellectual and developmental disabilities, including autism, in achieving employment and community integration.
How to Get an Autism Diagnosis in Tennessee: Your First Steps
Start with your child's pediatrician. Bring specific written observations of concerns and request a referral to a developmental pediatrician or licensed psychologist for a comprehensive autism evaluation.
At the same time, contact the Tennessee Early Intervention System (TEIS) if your child is under age 3. TEIS is Tennessee's IDEA Part C Early Intervention program. Call 1-844-836-3653 to start. Free evaluations; no autism diagnosis required — developmental delay qualifies. Services begin within 30 days of the IFSP.
For children age 3 and older, contact your local school district. Tennessee districts must evaluate children suspected of having disabilities at no cost within 60 days of a written request.
Search diagnostic providers in Tennessee →
Choosing an Evaluation Center in Tennessee
Nashville / Middle Tennessee
- Vanderbilt Kennedy Center (Nashville): A federally designated University Center for Excellence in Developmental Disabilities; among the most respected autism programs in the Southeast and the country. Offers comprehensive evaluations, research opportunities, and clinical services. Expect 10–16 month waits.
- Monroe Carell Jr. Children's Hospital at Vanderbilt (Nashville): The academic medical center affiliated with Vanderbilt Kennedy Center; developmental-behavioral pediatrics program. 8–14 month waits.
- Saint Thomas Health (Nashville): Good community option for Middle Tennessee families.
Memphis / West Tennessee
- Le Bonheur Children's Hospital (Memphis): The main pediatric hospital for West Tennessee; developmental medicine program. 8–12 month waits.
Knoxville / East Tennessee
- East Tennessee Children's Hospital (Knoxville): Primary hub for East Tennessee; developmental-behavioral pediatrics. 6–12 month waits.
- University of Tennessee Medical Center (Knoxville): Academic program for East TN families.
Private Practice Psychologists Tennessee has a growing network of licensed psychologists across Nashville, Memphis, and Knoxville. Typical waits of 2–5 months.
Tennessee-Specific Programs and Rights (Apply Immediately)
Tennessee Early Intervention System (TEIS) — Ages 0–3 Free early intervention for children under 3. Call 1-844-836-3653. Service coordinators develop the IFSP and arrange services. No prior diagnosis needed.
School District Evaluation — Ages 3–21 Submit a written evaluation request; the district has 60 days to complete it at no cost. IEP rights apply.
Tennessee Division of Intellectual Disabilities Services (DIDS) / DIDD Tennessee's DIDD provides long-term supports for individuals with intellectual and developmental disabilities. Programs include:
- Employment and Community First CHOICES (ECF CHOICES): Tennessee's innovative managed long-term supports and services (MLTSS) program specifically designed to support individuals with IDD — including autism — in achieving competitive integrated employment and community participation. Managed through TennCare (Tennessee Medicaid).
- Family Support Program: Respite care, family training, and crisis supports.
- Supported Living: Community residential supports for eligible adults.
To access DIDD services, contact DIDD at 1-844-836-3653 or your regional DIDD office. Tennessee has moved much of its DD service delivery into the managed care ECF CHOICES program — contact TennCare and DIDD simultaneously to understand your options.
Tennessee Vocational Rehabilitation (VR) — Age 14+ Tennessee VR provides job coaching, education funding, and career planning for autistic teens and adults. Apply through the VR website.
Tennessee Autism Insurance Mandate Tennessee's autism insurance mandate requires state-regulated health insurance plans to cover autism diagnosis and treatment including ABA therapy. Coverage applies through age 21. Speech, OT, and PT are also covered. Self-funded employer ERISA plans may not be covered by state law — check your plan documents.
Vanderbilt Kennedy Center Treatment and Research Institute for Autism Spectrum Disorder (TRIAD) TRIAD, housed within the Vanderbilt Kennedy Center, is Tennessee's premier autism training and resource program. Their website and resource directory are excellent starting points for families navigating the Tennessee autism service system.
What to Expect During an Autism Evaluation in Tennessee
A comprehensive evaluation includes parent interview, cognitive testing, adaptive behavior assessment (Vineland-3), ADOS-2 and/or ADI-R, direct observation, and a written report (2–6 weeks after testing).
Once you have the report, bring it to your DIDD regional office, school district, insurance company, and therapy providers.