If your child has Medicaid,
ABA therapy is covered.
No dollar cap. No arbitrary session limits.
Maryland Medicaid has covered medically necessary ABA therapy for children with autism since January 2017. It is a federal entitlement — which means eligible children are legally entitled to receive it. If your child is enrolled in Maryland Medicaid and has a formal autism diagnosis, the coverage you need almost certainly exists.
What most families lack is not coverage — it is a clear explanation of how the system actually works. Terms like EPSDT, HealthChoice, Carelon, MCO, and Autism Waiver can make the system feel like a wall rather than a door. This guide opens the door.
This guide explains every piece of the Maryland Medicaid system as it relates to ABA therapy: what the different programs are, who manages what, how to get authorized, what to do if you hit a roadblock, and exactly how The Learning Tree ABA supports Medicaid families through every step. If you are ready to start right now, contact us directly — our intake team works with Maryland Medicaid families daily and can begin verifying your eligibility immediately, at no cost.
- ABA therapy is covered under Maryland Medicaid EPSDT for all eligible children under 21 — no dollar cap, no arbitrary session limits.
- HealthChoice MCOs do not manage ABA therapy. That flows through Carelon Behavioral Health at the state level.
- The Autism Waiver is separate from Medicaid ABA — it supplements it with additional services. It has a 5,000+ child waitlist.
- Denials can be appealed successfully. TLT manages the entire appeals process on your behalf.
- EPSDT ABA ends at age 21. Begin transition planning in the early teen years.
Which Maryland Medicaid Programs Apply to ABA Therapy?
Maryland has multiple Medicaid programs and waivers that intersect with autism services. They are not the same program, they are not managed the same way, and they do not cover the same services. Understanding the difference is genuinely important — and it is where most families get confused first.
The most important distinction: Standard Medicaid EPSDT is the correct pathway to ABA therapy — it is a federal entitlement for eligible children. The Autism Waiver is a separate supplemental program with a waitlist of over 5,000 children, and it does not cover ABA therapy anyway. If someone tells you that you need to wait for the Autism Waiver to get ABA therapy, that is incorrect. These are different programs.
HealthChoice: Maryland's Managed Care Program
HealthChoice is the name of Maryland's Medicaid managed care program. Almost all Medicaid-eligible children in Maryland are enrolled in HealthChoice, which means your child's Medicaid coverage is delivered through a Managed Care Organization (MCO) — a health plan you choose or are assigned to at enrollment.
As of early 2026, nine MCOs participate in Maryland's HealthChoice program:
The Carve-Out: Why Your MCO Doesn't Handle ABA
This is the most important thing to understand about HealthChoice and ABA therapy: behavioral health services — including ABA therapy — are "carved out" of your MCO. Your MCO handles primary care, specialist visits, medications, and most medical services, but ABA therapy authorization and billing flow through Carelon Behavioral Health — not your MCO.
Who handles what under HealthChoice
ABA therapy is explicitly separated from your MCO at the state level
- Primary care visits
- Specialist appointments
- Prescriptions and medications
- Hospital and emergency care
- Dental and vision (where covered)
- ABA therapy authorization
- ABA provider network
- Behavior plan review and approval
- ABA therapy claims and billing
- Authorization renewals
The Maryland Autism Waiver
The Maryland Autism Waiver is a separate, supplemental program for children with autism who have significant support needs — specifically, those whose needs would otherwise require institutional care. It is not the same as standard Medicaid ABA coverage, and it is not required in order to access ABA therapy.
The Autism Waiver is a Home and Community-Based Services (HCBS) waiver — a federally approved Medicaid program that allows Maryland to cover services beyond standard Medicaid to support children living at home rather than in institutions. What it covers is meaningfully different from ABA therapy:
Autism Waiver services include: Intensive Individual Support Services (IISS) — one-on-one support for children with high behavioral needs · Respite care for families · Therapeutic Integration services · Family Consultation · Environmental Accessibility Adaptations (home modifications) · Adult Life Planning.
Importantly, the Autism Waiver does not replace or duplicate standard Medicaid ABA therapy. If your child receives ABA therapy through EPSDT, they can also be on the Autism Waiver for additional services — the programs are designed to work together.
The Autism Waiver has a waitlist of over 5,000 children. If your child may benefit from Waiver services, apply and join the registry as early as possible — eligibility requires an IEP or IFSP with at least 15 hours per week of special education services. For information, visit the MSDE Autism Waiver page or contact Pathfinders for Autism for guidance.
How to Determine If Your Child Is Eligible
There are two separate questions: is your child eligible for Maryland Medicaid, and is your child eligible for ABA therapy under Medicaid? The second depends on the first.
Step 1: Maryland Medicaid Eligibility
Based on household income and size
Maryland Medical Assistance (Medicaid) — covers families meeting income thresholds based on federal poverty level guidelines, determined by the Maryland Department of Health
Maryland Children's Health Program (MCHP) — covers children in families with incomes too high for standard Medicaid but who cannot afford private insurance. Higher income limits; same ABA coverage applies
SSI recipients are automatically eligible. If your child qualifies for Supplemental Security Income based on their autism diagnosis, Maryland Medicaid coverage is automatic
Step 2: ABA Therapy Eligibility
Once your child is enrolled in Medicaid
Formal autism diagnosis from a qualified health care professional — including a developmental pediatrician, child psychiatrist, pediatric neurologist, clinical psychologist, neuropsychologist, pediatrician, or nurse practitioner with ASD training
Completed BCBA assessment conducted by a Board Certified Behavior Analyst enrolled with Maryland Medicaid, documenting current skill levels and areas of need
Medical necessity documentation — the BCBA's behavior plan establishes why ABA therapy is clinically indicated, what goals it addresses, and how many weekly hours are needed
To check eligibility and apply for Medicaid, visit Maryland Health Connection or call 1-855-642-8572. The process takes up to 45 days, though many families receive a determination sooner. At The Learning Tree ABA, our intake team works with you to confirm all eligibility documentation is in place — you do not gather or submit these documents independently.
Our intake team verifies Medicaid enrollment and ABA eligibility at no cost, with no obligation. We identify any documentation gaps before they become delays.
Start Your Free Verification →The Prior Authorization Process for Medicaid ABA Therapy
Prior authorization is the step where Carelon Behavioral Health reviews the clinical evidence and formally approves a specific number of therapy hours for your child. No ABA therapy sessions should begin until authorization is confirmed — this is the mechanism that ensures sessions will actually be paid for. Here is exactly what the process looks like from start to finish.
Your child must be actively enrolled in Maryland Medicaid or MCHP before the authorization clock starts. Your ABA provider's intake team verifies that your child's ASD diagnosis comes from a qualified provider type as defined by Carelon's requirements — if not, they will tell you exactly what additional documentation is needed.
Your child's assigned BCBA conducts a comprehensive evaluation — typically spanning several sessions — of communication, social skills, adaptive behavior, daily living abilities, and behavioral challenges using standardized tools. The resulting report documents current skill levels, priority areas, measurable therapy goals, recommended intensity, and planned delivery setting. The quality of this document directly affects the success of the authorization request.
Based on the assessment, the BCBA writes your child's individualized behavior plan. This plan, along with the assessment report and supporting documentation, is submitted to Carelon through the provider portal. All ABA services require prior authorization from Carelon before sessions begin.
Carelon reviews the documentation against medical necessity criteria and EPSDT standards. The review period is typically one to four weeks from submission of complete documentation. Authorization is either approved (specifying weekly hours and the authorization period), approved with fewer hours than requested, or denied. If authorized at fewer hours than recommended, this is not final — see the next section.
Before each 180-day authorization expires, your provider submits a progress update and renewal request to Carelon. At The Learning Tree ABA, we track every authorization timeline and initiate renewals well in advance of expiration — your child's therapy will never be interrupted by an administrative lapse.
What to Do If Medicaid Denies Your ABA Therapy Claim
A denial from Carelon — or a reduced authorization — is not the end of the road. It is an administrative determination that can be challenged, and that is often successfully reversed with the right documentation and process. Parents should not navigate this alone, and at The Learning Tree ABA, they never do.
Step 1: Understand the Reason for the Denial
Carelon is required to provide a written Adverse Determination notice specifying the reason for the denial. Common reasons include:
- Missing or incomplete documentation — diagnosis records, assessment, or behavior plan
- The diagnosing provider does not meet Carelon's qualified health care professional requirements
- Medical necessity not adequately established in the submitted documentation
- Requested therapy intensity inconsistent with clinical criteria without sufficient rationale
- Administrative errors — incorrect member ID, enrollment issues, or coding errors
Reading the denial notice carefully and identifying the specific stated reason is the essential first step. Different denial reasons require different responses.
Step 2: Request a Reconsideration or File an Appeal
Maryland Medicaid provides multiple levels of appeal for denied services:
Request that Carelon reconsider the determination. Your ABA provider submits additional clinical documentation to address the specific denial reason. This is the first and fastest path — submit within the deadline stated in your denial notice.
If your child's condition requires a faster decision than the standard review timeline, you can request an expedited review. This is appropriate when waiting would significantly harm your child's development or wellbeing.
You have the right to request a formal state administrative hearing, where an independent hearing officer reviews the case. The Maryland Office of Administrative Hearings handles these proceedings. This is a formal legal process — having strong clinical documentation and provider support is essential.
If standard appeal channels are not succeeding, Disability Rights Maryland (formerly MDLC) provides free legal services and advocacy for Marylanders with disabilities. Federal EPSDT standards are on your side — children who are legally entitled to a service cannot be denied it without legal recourse.
- Submit within the stated deadline — missing it forfeits your right to appeal at that level
- Address the specific denial reason directly, not just a general restatement of clinical need
- Include all supporting clinical records, not only the documents originally submitted
- Ask your BCBA for a detailed letter of medical necessity that goes beyond standard behavior plan language and specifically argues why the requested hours are clinically necessary for this child
- Know your rights: EPSDT is a federal entitlement — eligible children are legally entitled to medically necessary services
How The Learning Tree ABA Works with Maryland Medicaid
The Learning Tree ABA accepts Maryland Medicaid — including all HealthChoice managed care plans — and works with Medicaid families every day across Baltimore County, Howard County, Harford County, Carroll County, Anne Arundel County, and Montgomery County. For Medicaid families, here is exactly what our intake process looks like:
When you contact us, our intake team verifies your child's Medicaid enrollment status and confirms that the ASD diagnosis meets Carelon's documentation requirements. We identify any documentation gaps before they become delays. No obligation.
If your child's autism diagnosis needs supplementation — for example, if it was conducted by a provider type not on Carelon's approved list — we will tell you clearly what additional documentation is needed and help connect you with resources to obtain it efficiently.
Our intake team prepares and submits all authorization materials to Carelon — the BCBA assessment report, individualized behavior plan, and medical necessity documentation. We track the review timeline, respond to any requests for additional information, and notify you the moment authorization is received.
We monitor every active authorization and initiate renewal submissions well before the 180-day expiration. Your child's therapy will never pause because of an administrative timing issue on our end.
If an authorization is denied or reduced, we manage the appeal process. Our clinical and intake teams have extensive experience preparing Carelon appeal submissions and, when necessary, supporting families through state fair hearing proceedings.
You will always know where things stand. We communicate clearly and promptly about authorization status, any documentation needs, and any issues that arise. If there is ever a delay, we tell you why and what we are doing about it.
Helping families understand and access their Medicaid benefits is part of what we do — not a billable service. The intake team's support costs you nothing. Our Medicaid families never navigate the authorization system alone.
You have enough on your plate. The authorization process, the Carelon relationship, the renewal tracking, the appeals if needed — those are our responsibilities, not yours. Your responsibility is your child. Ours is making sure the system works the way it is supposed to.
— The Learning Tree ABA, on how we support every Medicaid family we serveWhat Happens to Medicaid ABA Coverage When Your Child Turns 21?
This is one of the most important — and most anxiety-provoking — questions for families of older adolescents receiving Medicaid-funded ABA therapy. The answer deserves clarity, because the transition at 21 is real — but it is navigable with the right preparation.
Maryland Medicaid's EPSDT ABA benefit ends when your child turns 21. This is a federal program limit. After age 21, ABA therapy is not covered as a standard Medicaid benefit for most adults in Maryland. However, the transition does not have to be a cliff — and the earlier families begin planning, the more options they have.
The best time to begin planning the age-21 transition is not age 20 — it is the early teen years. The Learning Tree ABA's BCBAs incorporate transition planning into adolescent therapy programs, identifying which adult support systems to pursue and building the independence skills that make those systems most effective.
Maryland Developmental Disabilities Administration (DDA)
The DDA provides services to eligible adults with developmental disabilities — including supported employment, community living, personal supports, and day programs. These are different from ABA therapy but can be essential to quality of life after 21. Apply beginning at age 14 — eligibility takes time and earlier application means earlier potential access. dda.health.maryland.gov
Maryland Division of Rehabilitation Services (DORS)
DORS provides vocational rehabilitation for eligible individuals with disabilities, including young adults with autism. DORS can fund job training, job placement support, and assistive technology. ABA therapy targeting vocational skills during the teen years can make DORS engagement significantly more effective. dors.maryland.gov
Private Insurance May Continue Past 21
If your young adult has private insurance coverage, ABA therapy through private insurance does not automatically end at 21. Coverage depends on the specific plan. Check your plan's ABA benefit terms — some cover through 21 and beyond. Our intake team can help you verify coverage.
Build Transition Planning Into Teen ABA Now
The most effective transition strategy is one built into your teenager's current ABA program — not assembled at age 20. The Learning Tree ABA's BCBAs coordinate ABA goals with your teenager's IEP transition plan and help families understand which adult support systems to pursue while there is still time to build toward them.
The Maryland Medicaid system for ABA therapy is more navigable than it appears from the outside. The coverage is real, it is comprehensive, and it is a federal entitlement — which means eligible children are legally entitled to receive it. What families need is a provider who knows this system inside and out, handles every administrative step competently, and communicates clearly when anything requires your attention.
That is the standard we hold ourselves to at The Learning Tree ABA for every Medicaid family we serve. Contact us today to begin your free Medicaid verification. We are ready to help, and we will be with you every step of the way.
Medicaid Coverage Is There. Let Us Help You Use It.
Our intake team works with Maryland Medicaid families every day. Free eligibility verification, complete authorization management, no surprises.
Contact The Learning Tree ABA → Always a priority. Never a number. — Learn. Grow. Blossom.Frequently Asked Questions
Yes. The Learning Tree ABA is enrolled with Maryland Medicaid and accepts all HealthChoice managed care plans. Our intake team works with Medicaid families every day across multiple Maryland counties, including Baltimore County, Howard County, Harford County, Carroll County, Anne Arundel County, and Montgomery County.
When you contact us, the first thing we do is verify your child's Medicaid enrollment and eligibility for ABA therapy — at no cost and with no obligation. We handle the entire prior authorization process with Carelon Behavioral Health, and we manage all ongoing authorization renewals. Our Medicaid families never navigate the authorization system alone.
Two steps: first, ensure your child is enrolled in Maryland Medicaid; second, begin the intake process with a Medicaid-enrolled ABA provider. For Medicaid enrollment, visit Maryland Health Connection or call 1-855-642-8572 to apply online, by phone, or in person at your local Department of Social Services. If your child receives SSI, they are automatically eligible — call the Maryland Department of Health to confirm enrollment if you are not already receiving a Medicaid card.
Once your child is enrolled in Medicaid, contact The Learning Tree ABA. Our intake team will verify your child's enrollment status, confirm the ASD diagnosis documentation meets Carelon's requirements, conduct the BCBA assessment, and submit the prior authorization to Carelon. You do not need to contact Carelon yourself — we manage that relationship entirely on your family's behalf.
Yes, but it is important to understand what the Autism Waiver does and does not cover. The Maryland Autism Waiver is a Home and Community-Based Services (HCBS) waiver that provides supplemental services — intensive individual support, respite care, home modifications, family consultation, and adult life planning — for children with autism who have significant support needs. It does not cover ABA therapy as a separate service, because ABA is already covered under standard Medicaid EPSDT.
The two programs are designed to work together, not substitute for each other. The Autism Waiver currently has a waitlist of over 5,000 children. Families who believe their child may benefit from Autism Waiver services should apply and join the registry early. For information, visit the MSDE Autism Waiver page or contact Pathfinders for Autism.
Maryland Medicaid's EPSDT-based ABA benefit ends at age 21. This is a federal program limit. However, the transition does not have to be a cliff. Families who begin planning early — ideally in the early teenage years — have the best outcomes. Available pathways include services through the Maryland Developmental Disabilities Administration (DDA), vocational rehabilitation through DORS, and in some cases continued coverage through private insurance.
The ABA program at The Learning Tree ABA builds transition planning into adolescent therapy, helping families identify which adult support systems to pursue and developing the independence skills that make those systems most useful. If your teenager is receiving ABA therapy and approaching the end of Medicaid coverage, please raise this with your BCBA so we can plan together.
Yes — and this is one of the most common sources of confusion for Maryland Medicaid families. Being enrolled in a HealthChoice MCO does not affect your child's access to ABA therapy. Here is how it works: HealthChoice MCOs deliver most of your child's Medicaid health benefits, but behavioral health services — including ABA therapy — are managed separately through Carelon Behavioral Health Maryland at the state level.
This means ABA providers contract with Maryland Medicaid and Carelon directly, not with individual MCOs. Prior authorizations and claims for ABA services go to Carelon regardless of which MCO your child is enrolled in. Your MCO membership does not limit which ABA provider you can choose, and you do not need to find an ABA provider in your MCO's network to access coverage. For questions, contact Carelon Behavioral Health Maryland at 1-800-888-1965 — or contact The Learning Tree ABA and let us walk you through it.
The content on this page is intended for general informational and educational purposes only. It is not a substitute for professional medical, clinical, or legal advice. Every child with autism is unique — their needs, strengths, and the therapy goals that are right for them will differ. Information about Medicaid coverage, eligibility criteria, and program details reflects our best understanding at the time of publication and may change; always verify current requirements with Maryland Medicaid, Carelon Behavioral Health, or a qualified professional. Reading this guide does not establish a provider-client relationship with The Learning Tree ABA. To discuss your child's specific situation, please contact our team directly.
- Maryland Department of Health — ABA Provider Manual (Updated April 2025)
- Carelon Behavioral Health Maryland — ABA Program
- Maryland Department of Health — HealthChoice Program
- Maryland Health Connection — Medicaid Enrollment and MCO Comparison
- MSDE — Maryland Autism Waiver Information
- Pathfinders for Autism — Medical Assistance and Medicaid Resources
- Maryland Developmental Disabilities Administration (DDA)
- Maryland Division of Rehabilitation Services (DORS)
- Disability Rights Maryland — Free Legal Services for Marylanders with Disabilities
- The Learning Tree ABA — Services Overview
- The Learning Tree ABA — Contact and Free Consultation
