Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Brandith G Irwin MD Pllc

Dermatology Physician in Seattle, WA · enumerated 2006 · authorized official Brandith Irwin, Owner.

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

National Provider Identifier

1699831032

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Registry record

Entity type Organization (Type 2)

Legal business name Brandith G Irwin MD Pllc

Other name <Unavail>

Practice address 1101 Madison St, Suite 1490, Seattle, WA, 98104

Phone (909) 335-8638

Fax (909) 335-8644

Enumeration date Dec 29, 2006

Last updated in NPPES Jun 20, 2008

Taxonomy & classification

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Brandith Irwin

Title Owner

Phone (909) 335-8638

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

Where is Brandith G Irwin MD Pllc located?

The practice location on file with NPPES is in Seattle, WA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-06-20. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-20.