Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Allegra P Mcelroy, RN FNP

Nurse Practitioner in Mashpee, MA · enumerated 2007.

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

National Provider Identifier

1003023284

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Registry record

Entity type Individual (Type 1)

Name Allegra P Mcelroy

Credential RN FNP

Sex Female

Practice address 107 Commercial St, Mashpee, MA, 02649

Phone (508) 477-7090

Fax (508) 477-7028

Enumeration date May 17, 2007

Last updated in NPPES Oct 20, 2008

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 236184 (MA) Primary

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 specialty is Allegra Mcelroy?

Allegra Mcelroy is registered in NPPES with the primary taxonomy of Nurse Practitioner. 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 2008-10-20.