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Caroline C. Pieszak M.D. Inc.

Family Medicine Physician in Westlake Village, CA · enumerated 2017 · authorized official Caroline Pieszak, President.

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

National Provider Identifier

1285173542

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Registry record

Entity type Organization (Type 2)
Legal business name Caroline C. Pieszak M.D. Inc.
Practice address 1220 La Venta Dr Ste 105, Westlake Village, CA, 91361
Phone (805) 777-7242
Fax (805) 777-7242
Enumeration date Feb 20, 2017
Last updated in NPPES Feb 20, 2017

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License A64453 (CA) Primary

Authorized official

Name Caroline Pieszak
Title President
Phone (805) 777-7242

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 is Caroline C. Pieszak M.D. Inc. located?
The practice location on file with NPPES is in Westlake Village, CA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2017-02-20. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-20.