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

RACHEL E GENTILLON
NPI 1609447523
Behavior Analyst in Concord, CA

Q: What is Rachel Gentillon's NPI number?

The NPI number for Rachel Gentillon is 1609447523. It was assigned to this individual provider in the NPPES registry on July 2, 2021. The provider is also known as Rachel E Wilzbach.

Q: What is Rachel Gentillon's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Rachel Gentillon was last updated on June 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 59 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.

Active since July 02, 2021

1200 CONCORD AVE STE 185, CONCORD, CA 94520(575) 489-6651 Get Directions Write a Review

NPPES record last updated: June 22, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Dec 6, 2025, Jul 2, 2021 (2 updates tracked since 2021).

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About Rachel E Gentillon NPPES

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

RACHEL E GENTILLON (NPI 1609447523) is an individual behavior analyst provider in Concord, California, licensed in Washington (LBA.BA.70055504) and active in the NPI registry since July 2021.

NPPES Registry Identity

NPI1609447523

Entity TypeIndividualFemale

Primary Taxonomy103K00000X

Provider Legal NameRACHEL E GENTILLON

Location Address1200 CONCORD AVE STE 185Concord, CA 94520-5006

Mailing Address475 W 260 NOrem, UT 84057-1970 · (801) 221-9930

Phone(575) 489-6651

Sole ProprietorNo

Enumeration DateJuly 2, 2021

Last NPPES UpdateJune 22, 20262 updates tracked since enumeration

NPPES CertifiedJune 22, 2026

✔ NPI 1609447523 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 WA · LBA.BA.70055504

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.

1200 CONCORD AVE STE 185, Concord, CA 94520

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Other Names 1

Former Name (1)Rachel E Wilzbach

Other Identifiers 1

Medicaid1396085718UT

Other Providers at the Same Location NPPES 20

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

JESSICA QUINN

Behavior Technician