Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lauren Marie Macdonald, RN

Registered Nurse in Leominster, MA · enumerated 2023.

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

National Provider Identifier

1821871617

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Registry record

Entity type Individual (Type 1)

Name Lauren Marie Macdonald

Credential RN

Sex Female

Practice address 165 Mill St, Leominster, MA, 01453

Phone (978) 878-8100

Enumeration date Aug 15, 2023

Last updated in NPPES Aug 15, 2023

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 2388585 (MA) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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.

Read the full guide → Validate an NPI →

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 Lauren Macdonald?

Lauren Macdonald is registered in NPPES with the primary taxonomy of Registered Nurse. 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 2023-08-15.