Justin Leaf, Ph.D., BCBA
Board Certified Behavior Analyst, recognized by Behavior Analyst Certification Board · NPI 1881995942 (Centers for Medicare & Medicaid Services)
Last updated: April 17, 2026
Foristell, MO
ABA Therapy
Accepting Patients
Provider Details
- NPI Number
- 1881995942
- Credentials
- Ph.D., BCBA
- Service Setting
- In-Clinic
- Languages
- English
Specialties
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View all therapists in Foristell →Helpful Resources for Parents
Guides to help you decide if this type of therapy is right for your child, what to ask, and what to expect.
ABA Therapy: A Complete Parent's Guide
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