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

JOSEPHINE DIAZ
NPI 1265933592
Behavior Technician in Concord, CA

Active since February 22, 2018
1200 CONCORD AVE STE 185, CONCORD, CA 94520(510) 268-8120 Get Directions Write a Review

NPPES record last updated: July 6, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 6, 2026, Jul 3, 2019, Feb 22, 2018 (3 updates tracked since 2018).

About Josephine Diaz NPPES

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

JOSEPHINE DIAZ (NPI 1265933592) is an individual behavior technician in Concord, California and active in the NPI registry since February 2018. She maintains 2 additional practice locations.

NPPES Registry Identity

NPI1265933592
Entity TypeIndividualFemale
Primary Taxonomy106S00000X
Provider Legal NameJOSEPHINE DIAZ
Location Address1200 CONCORD AVE STE 185Concord, CA 94520-5006
Mailing Address1200 Concord Ave Ste 185Concord, CA 94520-5006 · (510) 268-8120
Sole ProprietorNo
Enumeration DateFebruary 22, 2018
Last NPPES UpdateJuly 6, 20263 updates tracked since enumeration
NPPES CertifiedJuly 6, 2026
NPI 1265933592 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyBehavior TechnicianBehavioral Health & Social Service Providers
Taxonomy Code106S00000X
Definition
The behavior technician is a paraprofessional who practices under the close, ongoing supervision of a behavior analyst or assistant behavior analyst certified by the Behavior Analyst Certification Board and/or credentialed by a state (such as through licensure). The behavior technician is primarily responsible for the implementation of components of behavior-analytic treatment plans developed by the supervisor. That may include collecting data on treatment targets and conducting certain types of behavioral assessments (e.g., stimulus preference assessments). The behavior technician does not design treatment or assessment plans or procedures but provides services as assigned by the supervisor responsible for his or her work.
Also ListedSpecialistTaxonomy 174400000X
1200 CONCORD AVE STE 185, Concord, CA 94520

Secondary Practice Locations 2

Location 13335 M StMerced, CA 95348-2714 · Phone (916) 729-3098
Location 25501 Antique Rose WayRiverbank, CA 95367-9505 · Phone (209) 521-4791

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.

Behavior Technician
1200 CONCORD AVE STE 185
CONCORD, CA 94520
Behavior Technician
1200 CONCORD AVE STE 185
CONCORD, CA 94520
Behavior Analyst
1200 CONCORD AVE STE 185
CONCORD, CA 94520
Behavior Technician
1200 CONCORD AVE STE 185
CONCORD, CA 94520
Behavior Technician
1200 CONCORD AVE STE 185
CONCORD, CA 94520
Behavior Technician
1200 CONCORD AVE STE 185
CONCORD, CA 94520
Behavior Technician
1200 CONCORD AVE STE 185
CONCORD, CA 94520
Behavior Technician
1200 CONCORD AVE STE 185
CONCORD, CA 94520

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 Josephine Diaz's NPI number?

The NPI number for Josephine Diaz is 1265933592. It was assigned to this individual provider in the NPPES registry on February 22, 2018.

Where is Josephine Diaz located?

Josephine Diaz practices at 1200 Concord Ave Ste 185, Concord, CA 94520. The listed phone number is (510) 268-8120.

What is Josephine Diaz's specialty?

The primary specialty registered for this NPI is Behavior Technician with taxonomy code 106S00000X.

When was this NPI record last updated?

The NPPES record for Josephine Diaz was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 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.