Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Robert Bastien, MD

Specialist in Westlake Village, CA · enumerated 2006.

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

National Provider Identifier

1053371096

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Registry record

Entity type Individual (Type 1)

Name Michael Robert Bastien

Credential MD

Sex Male

Practice address 1240 S Westlake Blvd, Suite 205, Westlake Village, CA, 91361

Phone (805) 495-0551

Fax (805) 496-8079

Enumeration date Mar 24, 2006

Last updated in NPPES Aug 30, 2010

Taxonomy & licenses

174400000X Specialist Other Service Providers · License G68812 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

What is the NPI number for Michael Bastien?

The National Provider Identifier (NPI) for Michael Bastien is 1053371096, a Type 1 (individual) record in the CMS NPPES registry.

Where does Michael Bastien practice?

The practice location on file with NPPES is in Westlake Village, 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 2010-08-30.