Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Margaret Mary Glenning, NP

Women's Health Nurse Practitioner in Van Nuys, CA · enumerated 2007.

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

National Provider Identifier

1558541888

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Registry record

Entity type Individual (Type 1)

Name Ms. Margaret Mary Glenning

Credential NP

Sex Female

Practice address Van Nuys, CA, 91402

Phone (818) 920-0808

Enumeration date Nov 3, 2007

Last updated in NPPES Apr 6, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 6425 (CA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
279262	Other	CA	RN 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Margaret Glenning?

The National Provider Identifier (NPI) for Margaret Glenning is 1558541888, a Type 1 (individual) record in the CMS NPPES registry.

Where does Margaret Glenning practice?

The practice location on file with NPPES is in Van Nuys, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-06.