Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marek Graczkowski, OTR

Occupational Therapist in Boca Raton, FL · enumerated 2007.

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

National Provider Identifier

1649493099

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Registry record

Entity type Individual (Type 1)

Name Marek Graczkowski

Credential OTR

Sex Male

Practice address 23315 Blue Water Cir, Boca Raton, FL, 33433

Phone (561) 368-1033

Enumeration date Apr 11, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OT10388 (FL) Primary

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 Marek Graczkowski practice?

The practice location on file with NPPES is in Boca Raton, FL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Marek Graczkowski?

The National Provider Identifier (NPI) for Marek Graczkowski is 1649493099, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.