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

CHELSEA RAE SPENCER
NPI 1043729957
Behavior Analyst in Palo Alto, CA

Q: What is Chelsea Spencer's NPI number?

The NPI number for Chelsea Spencer is 1043729957. It was assigned to this individual provider in the NPPES registry on September 22, 2017.

Q: What is Chelsea Spencer'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 Chelsea Spencer was last updated on July 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 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 September 22, 2017

3000 EL CAMINO REAL BLDG 4, PALO ALTO, CA 94306(408) 674-6591 Get Directions Write a Review

NPPES record last updated: July 8, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 8, 2026, Aug 29, 2022, Jul 1, 2021 and 1 more (4 updates tracked since 2017).

On this page

About Chelsea Rae Spencer NPPES

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

CHELSEA RAE SPENCER (NPI 1043729957) is an individual behavior analyst provider in Palo Alto, California and active in the NPI registry since September 2017.

NPPES Registry Identity

NPI1043729957

Entity TypeIndividualFemale

Primary Taxonomy103K00000X

Provider Legal NameCHELSEA RAE SPENCER

Location Address3000 EL CAMINO REAL BLDG 4Palo Alto, CA 94306-2100

Mailing Address204 Wilder AveLos Gatos, CA 95030-7209 · (408) 674-6591

Phone(408) 674-6591

Sole ProprietorNo

Enumeration DateSeptember 22, 2017

Last NPPES UpdateJuly 8, 20264 updates tracked since enumeration

NPPES CertifiedJuly 8, 2026

✔ NPI 1043729957 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyBehavior AnalystBehavioral Health & Social Service Providers

Taxonomy Code103K00000X

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.

3000 EL CAMINO REAL BLDG 4, Palo Alto, CA 94306

Open in Google Maps ↗

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.

CADY DRISCOLL BCBA

Behavior Analyst