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By Your Side Arizona, LLC

Developmental Disabilities Clinic/Center in Darien, IL · enumerated 2021 · authorized official Kathy Kozicki, Billing Contracting Manager.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1205409174

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Registry record

Entity type Organization (Type 2)
Legal business name By Your Side Arizona, LLC
Practice address 8201 Cass Ave, Darien, IL, 60561
Phone (630) 590-5571
Enumeration date Jul 20, 2021
Last updated in NPPES Jul 20, 2021

Taxonomy & classification

261QD1600X Developmental Disabilities Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Kathy Kozicki
Title Billing Contracting Manager
Phone (630) 590-5571

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for By Your Side Arizona, LLC?
The NPI for By Your Side Arizona, LLC is 1205409174, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for By Your Side Arizona, LLC?
NPPES lists Kathy Kozicki (Billing Contracting Manager) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-07-20.