NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Courtney Malachowski, OTR/L

Occupational Therapist in Sausalito, CA · enumerated 2023.

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

National Provider Identifier

1144097312

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Registry record

Entity type Individual (Type 1)
Name Mrs. Courtney Malachowski
Credential OTR/L
Sex Female
Practice address Sausalito, CA, 94965
Phone (415) 339-8800
Enumeration date Dec 7, 2023
Last updated in NPPES Dec 7, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 17859 (CA) 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

What is the NPI number for Courtney Malachowski?
The National Provider Identifier (NPI) for Courtney Malachowski is 1144097312, a Type 1 (individual) record in the CMS NPPES registry.
Where does Courtney Malachowski practice?
The practice location on file with NPPES is in Sausalito, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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