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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DAVETTE WILLIAMS CASTILLE BCBA
NPI 1881191120
Behavior Analyst in Ontario, CA

Active since April 12, 2018
3865 S OASIS PASEO UNIT 82, ONTARIO, CA 91761(909) 736-8344(909) 804-6414 Get Directions Write a Review

NPPES record last updated: July 23, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 23, 2026, Mar 10, 2022, Feb 11, 2022 and 1 more (4 updates tracked since 2018).

About Davette Williams Castille Bcba NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DAVETTE WILLIAMS CASTILLE BCBA (NPI 1881191120) is an individual behavior analyst provider in Ontario, California, licensed in California (1-21-56437) and active in the NPI registry since April 2018.

NPPES Registry Identity

NPI1881191120
Entity TypeIndividualFemale
Primary Taxonomy103K00000X
Provider Legal NameDAVETTE WILLIAMS CASTILLECredential: BCBA
Location Address3865 S OASIS PASEO UNIT 82Ontario, CA 91761-2760
Mailing Address3865 S Oasis Paseo Unit 82Ontario, CA 91761-2760 · (909) 736-8344 · Fax (909) 804-6414
Phone(909) 736-8344
Fax(909) 804-6414
Sole ProprietorYes
Enumeration DateApril 12, 2018
Last NPPES UpdateJuly 23, 20264 updates tracked since enumeration
NPPES CertifiedJuly 23, 2026
✔ NPI 1881191120 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyBehavior AnalystBehavioral Health & Social Service Providers
Taxonomy Code103K00000X
License✔ Licensed in CA · 1-21-56437
Definition
A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.
3865 S OASIS PASEO UNIT 82, Ontario, CA 91761
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Other Names 1

Former Name (1)Davette Colleen Williams Bcba

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

STEPPING STONES BEHAVIORAL CENTER
Community/Behavioral Health
3865 S OASIS PASEO UNIT 82
ONTARIO, CA 91761
San Bernardino County (909) 736-8344

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Davette Castille's NPI number?

The NPI number for Davette Castille is 1881191120. It was assigned to this individual provider in the NPPES registry on April 12, 2018. The provider is also known as Davette Colleen Williams Bcba.

Where is Davette Castille located?

Davette Castille practices at 3865 S Oasis Paseo Unit 82, Ontario, CA 91761. The listed phone number is (909) 736-8344.

What is Davette Castille's specialty?

The primary specialty registered for this NPI is Behavior Analyst with taxonomy code 103K00000X.

When was this NPI record last updated?

The NPPES record for Davette Castille was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.