Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Westside Aba

Q: What is the NPI number for Westside Aba?

The NPI for Westside Aba is 1245585777, a Type 2 (organization) record in the CMS NPPES registry.

Behavior Analyst in Frankfort, IL · enumerated 2012 · authorized official Shari Cassidy, Owner, Physical Therapist.

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

National Provider Identifier

1245585777

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Registry record

Entity type Organization (Type 2)

Legal business name Westside Aba

Practice address 10257 W Lincoln Hwy, Frankfort, IL, 60423

Phone (815) 469-1500

Fax (815) 469-1518

Enumeration date Jul 20, 2012

Last updated in NPPES Jul 20, 2012

Taxonomy & classification

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 11210328 (IL) Primary

Authorized official

Name Shari Cassidy

Title Owner, Physical Therapist

Phone (815) 469-1500

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

Who is the authorized official for Westside Aba?

NPPES lists Shari Cassidy (Owner, Physical Therapist) as the authorized official for this organization.

What is the NPI number for Westside Aba?

The NPI for Westside Aba is 1245585777, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-20.