Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Vanessa Lynn Marr, PHD

Clinical Social Worker in Ann Arbor, MI · enumerated 2021 · practices at A2 Walk and Talk Therapy.

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

National Provider Identifier

1063089647

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Registry record

Entity type Individual (Type 1)

Name Vanessa Lynn Marr

Credential PHD

Sex Female

Practice address 120 E Liberty St Ste 200, Ann Arbor, MI, 48104

Phone (734) 585-6966

Fax (734) 405-6314

Enumeration date Jun 10, 2021

Last updated in NPPES Aug 2, 2021

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6851109622 (MI) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Vanessa Marr?

Vanessa Marr is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-02.