Best Small ABA Clinics in Denver: 5 Top Providers for 2026

Key Takeaways

• Small clinics give your child consistent care: A small ABA clinic in Denver typically pairs your child with one Board Certified Behavior Analyst (BCBA) instead of rotating staff, which protects the relationship that drives progress.
• Five clinics worth knowing about: Alpaca Health, ACES ABA, BehaviorSpan, Action Behavior Centers, and Novus Behavior all serve Denver families with individual care, BCBA supervision, and broad insurance acceptance.
• Colorado law removed coverage caps: Senate Bill 15-015 eliminated age and dollar limits on ABA coverage, and Health First Colorado covers ABA at no cost for kids under 21 under the EPSDT rule.
• Match within 24 hours: If you want to skip the waitlist comparison, you can match with a BCBA through Alpaca's intake and start care in days.

Quick Comparison: 5 Best Small ABA Clinics in Denver

How We Picked These Clinics

This list focuses on small Denver-area providers that prioritize relationships with families over corporate scale. We weighted four things: BCBA supervision (a Board Certified Behavior Analyst should be the one designing and reviewing your child's plan), insurance accessibility (Medicaid plus a wide spread of commercial plans), age range (because small clinics often specialize in narrow windows like early childhood), and how quickly a family can actually start care.

Each clinic below is independently owned or independently operated. We left out large national chains that staff Denver locations with rotating technicians, since the relationship continuity small clinics offer is the differentiator most parents notice within the first few weeks.

5 Best Small ABA Clinics in Denver for 2026

1. Alpaca Health

Alpaca Health is an AI-powered platform that connects Denver families with independent BCBAs, usually within 24 hours of an intake form. The model is different from a traditional clinic. There is no central waitlist and no rotating tech roster, and your child stays with one BCBA who designs and reviews the plan.

Quick facts at a glance:

• Ages served: All ages, from toddlers through teens and into adulthood, depending on which BCBA you match with.
• Service settings: In-home ABA therapy, in-clinic, virtual ABA therapy, in-community, and in-school sessions through independent providers.
• Insurance: Over 100 commercial plans, including Aetna, Blue Cross Blue Shield, Cigna, Kaiser, and ChampVA, plus Health First Colorado for Medicaid families.
• How to start: Complete a short intake form to get matched with a Denver BCBA.

Pros:

• Matching with a vetted independent BCBA in about 24 hours, so families can start care without working through a central waitlist.
• Coverage across more than 100 commercial insurance plans alongside Health First Colorado, with the team handling prior authorization and verification on your behalf.
• One BCBA stays with your child across home, clinic, school, and community settings rather than rotating staff each session.

Cons:

• The model is platform-based rather than a single physical clinic, so there is no brick-and-mortar walk-in location.
• Specific session options depend on which independent BCBA you match with in your area.

Best for: Families who want fast access to a single, consistent BCBA across multiple settings, with support for both Medicaid and commercial coverage.

2. ACES ABA

ACES ABA has been operating since the late 1990s and runs a Denver Learning Center alongside in-home, in-school, and telehealth options. Sessions are designed by a BCBA and delivered by Registered Behavior Technicians under that BCBA's supervision.

Quick facts at a glance:

• Phone: (855) 223-7123.
• Service settings: ACES Learning Center (in-clinic), in-home, in-school, and telehealth.
• Insurance: More than 100 commercial plans, including Aetna, Blue Cross Blue Shield, and Cigna.
• Hours: Monday through Friday, 8:00 AM to 7:30 PM, plus Saturday 9:00 AM to 5:00 PM.

Pros:

• Long-running program with experience delivering ABA in-clinic, in-home, in-school, and through telehealth.
• Extended hours including Saturdays, which can fit schedules that do not work with weekday-only programs.
• Acceptance of more than 100 commercial insurance plans, including Aetna, Blue Cross Blue Shield, and Cigna.

Cons:

• Insurance acceptance skews toward commercial plans, so Medicaid families should confirm coverage before scheduling.
• Specific age ranges are not published on the location page, so families with very young or older children should verify fit during intake.

Best for: Families with commercial insurance who want flexibility across multiple settings and access to evening or Saturday sessions.

3. BehaviorSpan

BehaviorSpan focuses exclusively on early childhood ABA in two Denver-area centers, with most kids attending intensive programs of 30 to 40 hours per week. The model is built around an average graduation timeline of about 18 months, which gives families a clearer endpoint than open-ended programs.

Quick facts at a glance:

• Locations: 2111 S Dahlia St, Denver, CO 80222 and 14707 E 2nd Ave GL100, Aurora, CO 80011.
• Phone: (720) 206-9644.
• Ages served: Children ages 1 through 6.
• Service settings: Center-based, in-clinic only.
• Insurance: Health First Colorado at no cost to families, plus private insurance.

Pros:

• Specialization in early childhood ABA, with a typical program length of about 18 months and a clear graduation path.
• Acceptance of Health First Colorado at no cost to families, alongside private insurance.
• Two physical locations in Denver and Aurora for families who prefer center-based care.

Cons:

• Services are limited to children ages 1 through 6, so families with older kids will need a different provider.
• Programs are center-based only, without in-home or telehealth options.

Best for: Families of toddlers and preschoolers looking for intensive, center-based ABA with a defined treatment timeline.

4. Action Behavior Centers

Action Behavior Centers serves the Denver metro from multiple center-based locations, with twice-a-month BCBA-led family guidance sessions built into every care plan. Coordination with speech, occupational, and physical therapists is part of the model when your child needs more than ABA alone.

Quick facts at a glance:

• Phone: (720) 324-7600.
• Service area: Denver, Aurora, Westminster, Parker, Broomfield, and surrounding suburbs.
• Ages served: 18 months through 8 years for center-based ABA, plus a 5 to 12 ABC Academy School Program.
• Service settings: Center-based with family guidance sessions twice each month.
• Insurance: 120 or more commercial plans accepted, including Aetna, Anthem BCBS, Cigna, and Carelon.

Pros:

• Coverage of more than 120 commercial insurance plans, including Aetna, Anthem BCBS, Cigna, and Carelon.
• Twice-monthly BCBA-led family guidance sessions are part of every care plan.
• Multiple Denver-area locations across Denver, Aurora, Westminster, Parker, and Broomfield.

Cons:

• The model is center-based, without in-home or community options as part of the standard program.
• The main program serves up to age 8, and older children move to the separate ABC Academy track or to another provider.

Best for: Families of younger children who prefer center-based care with built-in family training and a wide insurance network.

5. Novus Behavior

Novus Behavior is a small relationship-focused practice that brings ABA into the settings where children spend most of their time. The team coordinates with local providers like teachers, pediatricians, and other therapists, which makes it a practical fit for families who want one BCBA stitching together the broader picture.

Quick facts at a glance:

• Phone: 720-432-0338.
• Service area: Denver, Littleton, Highlands Ranch, Lakewood, and Westminster.
• Ages served: Children, teens, and adults with individualized goals.
• Service settings: In-home and in-school, scheduled by appointment.
• Insurance: Anthem Blue Cross, Cigna, ComPsych, Health First Colorado, and PASA (DD and SLS waivers).

Pros:

• Service across all ages, including teens and adults, which is less common among small ABA practices.
• Coverage of in-home and in-school sessions, with coordination across schools, pediatricians, and other therapists.
• Acceptance of Health First Colorado and PASA waivers (DD and SLS) alongside commercial plans.

Cons:

• No center-based location, so families who prefer clinic-only sessions would need a different provider.
• Sessions run by appointment, which can require more scheduling coordination than fixed-hours programs.

Best for: Families looking for in-home or in-school ABA across a wider age range, including teens and adults, with Medicaid waiver support.

Why Small Clinics Often Work Better for Families

Smaller clinics tend to keep BCBA-to-child ratios tight, which means the person designing your child's plan is the same person reviewing data and adjusting goals each week. Research published in the Journal of Applied Behavior Analysis ties closer supervision to better skill outcomes, which matches what most parents notice within the first month.

Continuity of staffing is the second factor. A small clinic that keeps a stable team gives your child a chance to build trust with one or two adults rather than starting over with a new technician every few months. That trust is part of what makes the technique work.

How to Choose a Small ABA Clinic in Denver

Three things matter most when you're picking a clinic:

• BCBA supervision: A Board Certified Behavior Analyst should be designing the plan and reviewing it weekly, not handing it off to a registered technician. Ask how often the BCBA actually meets with your child.
• Parent involvement: Programs that build in structured parent training tend to produce better progress, since you spend far more time with your child than any therapist will.
• Setting fit: Decide whether your child does better with in-home sessions, center-based care, or a mix. Small clinics often offer more flexibility on this than large chains.

Once you've narrowed the list, ask each clinic for a sample week of programming. The level of specificity in the answer tells you a lot about how much thought goes into the plan.

Insurance and Medicaid in Colorado

Colorado removed all age and dollar caps on ABA coverage with Senate Bill 15-015 in 2015, so commercial insurance plans regulated by the state must cover medically necessary ABA without annual limits. Most plans require prior authorization, which a clinic with experienced billing staff can handle for you.

For Medicaid families, Health First Colorado covers ABA at no cost for children under 21 under the federal EPSDT rule. You can also contact the Colorado Medicaid agency for a full list of Medicaid-enrolled providers, or skip the six to twelve month waitlists at large corporate centers.

Get Started With ABA in Denver

If you want to skip the comparison legwork, you can match with a BCBA through Alpaca's intake form and connect with a Denver provider in about 24 hours. Most families in the Denver metro area and across Colorado are matched with an independent BCBA who handles the insurance verification and prior authorization paperwork on the family's behalf.

Frequently Asked Questions About ABA clinics in Denver

How much does small ABA therapy cost in Denver?

Out-of-pocket ABA therapy in Denver typically runs $120 to $150 per hour without insurance. Most families pay nothing through Health First Colorado for kids under 21, and commercial insurance covers medically necessary ABA without caps under Colorado law. Our ABA therapy cost guide breaks down typical out-of-pocket ranges.

How quickly can my child start ABA at a small clinic?

Most small clinics can complete an intake and initial assessment within one to four weeks, much faster than the six to twelve month waitlists at large corporate centers. Alpaca Health typically matches families with a BCBA within 24 hours of submitting an intake form.

What ages do small ABA clinics in Denver serve?

Most small Denver clinics specialize in early childhood, with BehaviorSpan and Action Behavior Centers serving ages 1 to 8. Alpaca Health and Novus Behavior work across all ages, including teens and adults, which is useful for families looking for continuity beyond elementary school.

Do small ABA clinics in Denver accept Medicaid?

Yes. BehaviorSpan, Novus Behavior, and providers in the Alpaca Health network all accept Health First Colorado. ACES ABA and Action Behavior Centers focus on commercial insurance, so Medicaid families have the most options through the other three.

Should I choose in-home ABA or center-based?

It depends on your child and your family's schedule. Center-based ABA is often better for kids who need a structured learning environment with peer interaction, while in-home ABA generalizes skills directly into the routines your family lives every day. Many families combine both.

What credentials should an ABA therapist have?

Look for a Board Certified Behavior Analyst (BACB) overseeing your child's program, with Registered Behavior Technicians delivering the day-to-day sessions under that BCBA's supervision. Avoid programs where a BCBA is named on paper but rarely actually engages with your child.