Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Andrzej Lewandowski, CCC-SLP, MHS

Speech-Language Pathologist in Schiller Park, IL · enumerated 2018 · practices at Dempster Therapeutic Services LLC.

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

National Provider Identifier

1629562459

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Registry record

Entity type Individual (Type 1)

Name Mr. Andrzej Lewandowski

Credential CCC-SLP, MHS

Sex Male

Practice address 9950 Lawrence Ave Ste 309, Schiller Park, IL, 60176

Phone (847) 999-3990

Enumeration date Jun 15, 2018

Last updated in NPPES Jan 22, 2024

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 146.014096 (IL) Primary

Other identifiers

Identifier	Type	State	Issuer
146.014096	Other	IL	IDFPR

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

Where does Andrzej Lewandowski practice?

The practice location on file with NPPES is in Schiller Park, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Andrzej Lewandowski?

The National Provider Identifier (NPI) for Andrzej Lewandowski is 1629562459, a Type 1 (individual) record in the CMS NPPES registry.

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Dempster Therapeutic Services LLC Speech-Language Pathologist · Schiller Park, IL NPI 1639663461

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-22.