NPI Portal NPI Lookup & Verification

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

Dr. Lisa Brennan, N.D.

Naturopath in Kirkland, WA · enumerated 2011.

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

National Provider Identifier

1588931240

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Registry record

Entity type Individual (Type 1)
Name Dr. Lisa Brennan
Credential N.D.
Sex Female
Practice address Kirkland, WA, 98034
Phone (425) 899-1234
Fax (425) 828-3626
Enumeration date Nov 23, 2011
Last updated in NPPES Sep 15, 2014

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

Taxonomy & licenses

175F00000X Naturopath Other Service Providers · License NATU.NT.60344479 (WA) Primary

Other identifiers

Identifier Type State Issuer
2034989 Medicaid WA -

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 Lisa Brennan?
The National Provider Identifier (NPI) for Lisa Brennan is 1588931240, a Type 1 (individual) record in the CMS NPPES registry.
Where does Lisa Brennan practice?
The practice location on file with NPPES is in Kirkland, WA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-09-15.