Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Andrea M Landis, PHD, RN, FNP

Family Nurse Practitioner in Manassas Park, VA · enumerated 2021.

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

National Provider Identifier

1104496389

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Registry record

Entity type Individual (Type 1)

Name Andrea M Landis

Credential PHD, RN, FNP

Sex Female

Practice address 99 Tremont St, Manassas Park, VA, 20111

Phone (703) 993-5880

Enumeration date Jun 29, 2021

Last updated in NPPES Jun 29, 2021

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024164141 (VA) 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 Andrea Landis?

Andrea Landis is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. 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 2021-06-29.