Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Vanessa D Mesner, O.T.

Physical Rehabilitation Occupational Therapist in Los Angeles, CA · enumerated 2008.

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

National Provider Identifier

1619112661

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Registry record

Entity type Individual (Type 1)

Name Vanessa D Mesner

Credential O.T.

Sex Female

Practice address 11860 Wilshire Blvd, Ste 100, Los Angeles, CA, 90025

Phone (310) 795-4459

Fax (310) 312-1139

Enumeration date Dec 4, 2008

Last updated in NPPES Dec 4, 2008

Taxonomy & licenses

225XP0019X Physical Rehabilitation Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OT4751 (CA) Primary

OT · Occupational Therapist: A licensed therapist helping patients develop or recover skills for daily living and working. About the OT credential

Other identifiers

Identifier	Type	State	Issuer
OT4751	Other	CA	STATE LICENSE

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

Is NPI 1619112661 active?

Yes, as of the latest NPPES snapshot, NPI 1619112661 is active (record last updated 2008-12-04).

How do I verify Vanessa Mesner's NPI record?

Cross-check NPI 1619112661 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-04.