Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Giant Steps

Q: What type of organization is Giant Steps?

Giant Steps is registered in NPPES as a Occupational Therapist (its primary provider taxonomy).

Occupational Therapist in Lisle, IL · enumerated 2009 · authorized official Karolina Kordalewski, Therapy Center Director.

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

National Provider Identifier

1326271016

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Registry record

Entity type Organization (Type 2)

Legal business name Giant Steps

Practice address 2500 Cabot Dr, Lisle, IL, 60532

Phone (630) 864-3800

Fax (630) 864-3820

Enumeration date Aug 27, 2009

Last updated in NPPES Dec 7, 2023

Taxonomy & classification

103K00000X Behavior Analyst Behavioral Health & Social Service Providers Secondary

104100000X Social Worker Behavioral Health & Social Service Providers Secondary

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

225A00000X Music Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary

2355S0801X Speech-Language Assistant Speech, Language and Hearing Service Providers Secondary

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers Secondary

261QM1300X Multi-Specialty Clinic/Center Ambulatory Health Care Facilities Secondary

Authorized official

Name Karolina Kordalewski

Title Therapy Center Director

Phone (630) 864-3852

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

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Giant Steps?

Giant Steps is registered in NPPES as a Occupational Therapist (its primary provider taxonomy).

Providers at this address

Browse all →

Sarah Presti Occupational Therapist · Lisle, IL NPI 1033326327 Megan Otto Speech-Language Pathologist · Lisle, IL NPI 1831426790 Katherine Crowley Speech-Language Pathologist · Lisle, IL NPI 1861729642 Lindsay Hixenbaugh Speech-Language Pathologist · Lisle, IL NPI 1508167198 Megan Sommerfield Speech-Language Pathologist · Lisle, IL NPI 1053608190 Christina Phillips Speech-Language Pathologist · Lisle, IL NPI 1992083646 Julia Volm Specialist · Lisle, IL NPI 1164700795 Tara Frey Speech-Language Pathologist · Lisle, IL NPI 1962754887

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-07.