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Last updated: October 19, 2026

Colorado Medicaid ABA Guide

Does Colorado Medicaid Cover ABA Therapy?

Yes, when pediatric behavioral therapy is medically necessary and approved in advance. Here is the parent path from finding a contracted provider to receiving a PAR decision.

See the 6 steps

Clinically reviewed by Meaghan Timko, MS, BCBA, LBA BACB certification #1-05-2608

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The short answer

Health First Colorado covers Pediatric Behavioral Therapies for members age 20 and younger when the care meets EPSDT medical-necessity criteria. A contracted provider must assess the child, prepare a plan of care, and receive prior authorization before treatment starts.

This is a state-plan benefit, not a CES Waiver service. It is also broader than a single autism diagnosis: HCPF bases access on age and medical necessity, while the provider documents the condition, symptoms, assessment, referral, and requested care.

Start-to-approval path

How Colorado Medicaid ABA coverage works

The provider owns most of the clinical paperwork. The parent’s job is to choose the provider carefully, send complete records, and track the written decision.

  1. 1

    Confirm Health First Colorado enrollment

    Check that your child is currently enrolled and that the member information the provider will use is correct. If you are applying for coverage, use PEAK or contact Health First Colorado before assuming the therapy benefit is active. If income is the barrier, HCPF points families to the Children’s Buy-In Program.

  2. 2

    Contact contracted providers

    Use the official HCPF provider list and compare more than one option. Ask whether the provider is accepting new Health First Colorado clients in your ZIP code and whether care is offered at home, in a center, or both.

  3. 3

    Complete the provider assessment

    The provider evaluates the child and builds the requested plan of care. HCPF requires the provider to submit a standardized adaptive-behavior assessment, a referral, and the plan of care with the authorization request.

  4. 4

    Let the provider submit the PAR

    The contracted provider submits the Prior Authorization Request to Colorado’s utilization-management vendor. If reviewers ask for more records, the vendor may deny the request for lack of information if those documents are not received within four business days. ABA or other covered behavioral therapy should not start under this benefit until the request is approved.

  5. 5

    Read the determination letter

    The provider and member receive the final decision. If approved, confirm the authorized services, hours, setting, and end date. An approval may run for up to six months before updated authorization is needed.

  6. 6

    Act quickly on a denial or partial approval

    Read the Notice of Action and its deadline. After a denial, ask about provider-requested reconsideration, a new PAR with more information, and the member appeal process. The Office of Administrative Courts must receive a written appeal within 30 calendar days of the Notice of Action date.

Source: HCPF provider guidance on PAR documents, decisions, and six-month authorization periods.

September 2026: ask about the treatment-plan details

Colorado HCPF now reminds providers to connect each requested intervention to the child’s assessed functional needs and measurable goals. It encourages submitting PARs 14-21 days before the requested start date when possible, so ask your provider when a first request or renewal will go in. Approaches such as social stories, sensory strategies, and mindfulness are not automatically excluded; the provider must explain their clinical purpose and how progress will be measured. This is guidance on documentation and review, not a new blanket coverage ban. Read HCPF’s September provider bulletin, pages 9-11.

Questions to ask before intake

“Accepts Medicaid” is only the first filter. You also need a provider that serves your location, offers the right setting, has a workable start timeline, and can manage the authorization well. Compare in-home versus center-based ABA and use the therapy-center visit questions before you commit to intake.

  • Are you currently accepting new Health First Colorado clients in my ZIP code?
  • Do you provide in-home, center-based, school-based, or hybrid care?
  • How soon can the assessment begin, and what records should I send first?
  • Who prepares and submits the PAR, and how will you update me on its status?
  • How often will a BCBA observe care and review progress with our family?
  • What happens if the approved hours differ from the treatment recommendation?
  • How do you handle renewal before the current authorization expires?

Which Colorado ABA providers accept Medicaid?

Colorado ABA providers that accept Medicaid are the ones contracted with Health First Colorado for Pediatric Behavioral Therapies, and HCPF publishes that contracted provider list. Use the city lists below as a starting point and confirm the contract and openings during intake. Our guide to finding ABA therapy that accepts your Medicaid plan has the questions to ask on that call.

Denver 26 providers Colorado Springs 21 providers Arvada 15 providers Centennial 15 providers Aurora 14 providers Lakewood 13 providers Parker 13 providers Westminster 13 providers Broomfield 12 providers Pueblo 12 providers Brighton 11 providers Castle Rock 11 providers
Browse all Colorado cities

If the PAR is denied or reduced

A denial or partial approval should explain the reason and the member’s appeal rights. Ask the provider to compare the decision with the assessment, referral, and plan of care. Missing records may be handled differently from a disagreement about medical necessity, so the written reason matters. The Office of Administrative Courts must receive a written appeal within 30 calendar days of the Notice of Action date (see HCPF Pediatric Behavioral Therapies); follow the instructions in the current letter.

Keep together

Assessment, referral, plan of care, PAR decision, progress records, provider notes, and every letter or portal message.

Ask immediately

What is the deadline? Can the provider request reconsideration or submit a new PAR with missing information? Was peer-to-peer review offered before the decision?

Frequently asked questions

Does Health First Colorado cover ABA therapy? +
Health First Colorado covers medically necessary Pediatric Behavioral Therapies for eligible members age 20 and younger. The contracted provider must assess the child and obtain prior authorization before treatment starts. Families should confirm the requested service and provider enrollment directly with HCPF and the provider.
Does my child need an autism diagnosis for Colorado Medicaid behavioral therapy? +
The benefit is based on age and EPSDT medical necessity rather than limited to one diagnosis. The referring clinician documents the need for services, while the contracted behavioral-therapy provider completes the assessment and plan of care used in the PAR. Coverage is not automatic based on a diagnosis alone.
What is a PAR for ABA therapy in Colorado? +
PAR means Prior Authorization Request. The behavioral-therapy provider submits it before treatment begins. HCPF requires an adaptive-behavior assessment, referral for services, and plan of care. The review decides whether the request is medically necessary and what services are authorized.
How long does a Colorado Medicaid ABA authorization last? +
An approved Pediatric Behavioral Therapies PAR is valid for up to six months. The exact end date appears in the determination. If treatment should continue, the provider may need to submit a new request with updated assessment, progress, and treatment information.
What if Health First Colorado denies or reduces the requested ABA hours? +
Before a denial or partial denial, the requesting clinician may be contacted for peer-to-peer review. After a denial, read the Notice of Action and its deadline first, then ask the provider about reconsideration or a new PAR with more information. A written appeal must reach the Office of Administrative Courts within 30 calendar days of the Notice of Action date. Keep the assessment, referral, plan of care, denial letter, progress data, and all communication together.
Does the Colorado CES Waiver pay for ABA? +
No. ABA is not on the current CES service list. Health First Colorado members pursue medically necessary ABA through the separate Pediatric Behavioral Therapies benefit. A child may use CES and non-duplicative state-plan benefits at the same time.
Where can I find Colorado Medicaid ABA providers? +
HCPF maintains the official contracted Pediatric Behavioral Therapies provider list, including service areas and contact details. You can also browse Colorado ABA listings by city below or ask Special Needs Care Network for a free shortlist based on your ZIP code and coverage.

Official Colorado sources

This guide summarizes public program information and is not medical, legal, or coverage advice. Benefit rules, provider participation, and authorization requirements can change. Confirm your child’s current coverage with Health First Colorado and the treating provider.

Find Colorado ABA options that fit your coverage

Tell us your ZIP code and insurance. We will help you build a free shortlist of Colorado ABA providers to contact and compare.