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Mrs. Madeleine Margaret Gillwald, FNP

Family Nurse Practitioner in Arlington, VA · enumerated 2014.

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

National Provider Identifier

1518384809

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Registry record

Entity type Individual (Type 1)
Name Mrs. Madeleine Margaret Gillwald
Credential FNP
Sex Female
Practice address 4600 Langston Blvd, Arlington, VA, 22207
Phone (571) 492-3080
Fax (571) 492-3081
Enumeration date Mar 25, 2014
Last updated in NPPES Jan 26, 2023

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN1019855 (DC) Secondary
363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024174872 (VA) Primary
163WC0200X Critical Care Medicine Registered Nurse Nursing Service Providers · License 0001241677 (VA) Secondary
163WN0002X Neonatal Intensive Care Registered Nurse Nursing Service Providers · License 0001241677 (VA) Secondary
FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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 Madeleine Gillwald?
Madeleine Gillwald 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 2023-01-26.