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BRIAN KOCISZEWSKI
NPI 1558823401
Behavior Analyst in Chandler, AZ

Active since April 01, 2019
2141 E PECOS RD, CHANDLER, AZ 85225(480) 846-0607(480) 841-6696 Get Directions Write a Review

NPPES record last updated: January 26, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 26, 2026, Apr 1, 2019 (2 updates tracked since 2019).

About Brian Kociszewski NPPES

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

BRIAN KOCISZEWSKI (NPI 1558823401) is an individual behavior analyst provider in Chandler, Arizona, licensed in Arizona (000399) and active in the NPI registry since April 2019. He maintains a secondary practice location in Chandler.

NPPES Registry Identity

NPI1558823401
Entity TypeIndividualMale
Primary Taxonomy103K00000X
Provider Legal NameBRIAN KOCISZEWSKI
Location Address2141 E PECOS RDChandler, AZ 85225-6077
Mailing Address2141 E Pecos RdChandler, AZ 85225-6077 · (480) 846-0607 · Fax (480) 841-6696
Phone(480) 846-0607
Fax(480) 841-6696
Sole ProprietorNo
Enumeration DateApril 1, 2019
Last NPPES UpdateJanuary 26, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 26, 2026
✔ NPI 1558823401 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 AZ · 000399
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.
2141 E PECOS RD, Chandler, AZ 85225
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Secondary Practice Location 1

Location 12121 E Pecos Rd Ste 1Chandler, AZ 85225-6075 · Phone (480) 846-0607 · Fax (480) 841-6696

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc., Providence Health Plan.Insurance ›

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.

CASSIDY SUE DICKENSON
Behavior Technician
2141 E PECOS RD
CHANDLER, AZ 85225
Maricopa County (480) 846-0607
KRISTA YACONETTI LMSW
Social Worker
2141 E PECOS RD
CHANDLER, AZ 85225
Maricopa County (480) 846-0607
MOLLY CELLER
Behavior Technician
2141 E PECOS RD
CHANDLER, AZ 85225
Maricopa County (480) 846-0607
ERIN DOUGHERTY
Speech-Language Pathologist
2141 E PECOS RD
CHANDLER, AZ 85225
Maricopa County (480) 846-0607
LEAH BELL
Specialist/Technologist (Speech-Language Assistant)
2141 E PECOS RD
CHANDLER, AZ 85225
Maricopa County (480) 846-0607
JANE GOODMAN TAMMIK BCBA
Behavior Analyst
2141 E PECOS RD
CHANDLER, AZ 85225
Maricopa County (480) 846-0607
KATELYN PAIGE BROWN
Behavior Analyst
2141 E PECOS RD
CHANDLER, AZ 85225
Maricopa County (480) 846-0607
COURTNEY DANIELLE WEEKS
Behavior Technician
2141 E PECOS RD
CHANDLER, AZ 85225
Maricopa County (480) 846-0607

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 Brian Kociszewski's NPI number?

The NPI number for Brian Kociszewski is 1558823401. It was assigned to this individual provider in the NPPES registry on April 1, 2019.

Where is Brian Kociszewski located?

Brian Kociszewski practices at 2141 E Pecos Rd, Chandler, AZ 85225. The listed phone number is (480) 846-0607.

What is Brian Kociszewski's specialty?

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

What insurance does Brian Kociszewski accept?

Health plans from Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc. and Providence Health Plan list Brian Kociszewski as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Brian Kociszewski was last updated on January 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.