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

Leah Brown, RN CNS

Clinical Nurse Specialist in San Diego, CA · enumerated 2023.

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

National Provider Identifier

1336915206

Verified

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Registry record

Entity type Individual (Type 1)

Name Leah Brown

Credential RN CNS

Sex Female

Practice address San Diego, CA, 92123

Phone (858) 939-5937

Enumeration date Nov 30, 2023

Last updated in NPPES Nov 30, 2023

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

Taxonomy & licenses

364S00000X Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 508588 (CA) 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

What specialty is Leah Brown?

Leah Brown is registered in NPPES with the primary taxonomy of Clinical Nurse Specialist. 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 2023-11-30.