Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret Elizabeth Mcilvoy, PSYCHOLOGIST

Psychologist in Las Cruces, NM · enumerated 2006.

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

National Provider Identifier

1659452548

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Registry record

Entity type Individual (Type 1)

Name Margaret Elizabeth Mcilvoy

Credential PSYCHOLOGIST

Sex Female

Practice address 350 El Molino Blvd, Las Cruces, NM, 88005

Phone (505) 524-9157

Fax (505) 524-5968

Enumeration date Oct 18, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License NM639 (NM) Primary

Other identifiers

Identifier	Type	State	Issuer
F1049	Medicaid	NM	-

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

What specialty is Margaret Mcilvoy?

Margaret Mcilvoy is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.