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

Margaret W Njigua

Psychiatric/Mental Health Registered Nurse in Lexington, MA · enumerated 2024.

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

National Provider Identifier

1487471843

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Registry record

Entity type Individual (Type 1)

Name Margaret W Njigua

Sex Female

Practice address Lexington, MA, 02421

Phone (781) 861-0890

Enumeration date Sep 25, 2024

Last updated in NPPES Sep 25, 2024

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

Taxonomy & licenses

163WP0808X Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License RN2314786 (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.

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Frequently asked questions

Where does Margaret Njigua practice?

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

What is the NPI number for Margaret Njigua?

The National Provider Identifier (NPI) for Margaret Njigua is 1487471843, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-25.