Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

A-Z Development Group, LLC

Early Intervention Provider Agency in Chicago, IL · enumerated 2015 · authorized official Susan Lorenz, Developmental Therapist.

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

National Provider Identifier

1417322512

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Registry record

Entity type Organization (Type 2)

Legal business name A-Z Development Group, LLC

Practice address 3209 W Argyle St Apt 2n, Chicago, IL, 60625

Phone (773) 391-2377

Enumeration date Dec 1, 2015

Last updated in NPPES Sep 1, 2026

Taxonomy & classification

222Q00000X Developmental Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

252Y00000X Early Intervention Provider Agency Agencies Primary

Authorized official

Name Susan Lorenz

Title Developmental Therapist

Phone (773) 391-2377

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is A-Z Development Group, LLC located?

The practice location on file with NPPES is in Chicago, IL.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2026-09-01. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Susan Lorenz Developmental Therapist · Chicago, IL NPI 1609997964

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-09-01.