Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William James Brownlee III, M.D.

Surgery Physician in Washington, DC · enumerated 2005.

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

National Provider Identifier

1245224369

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Registry record

Entity type Individual (Type 1)

Name Dr. William James Brownlee III

Credential M.D.

Sex Male

Practice address 1160 Varnum St Ne, Suite 300-B, Washington, DC, 20017

Phone (202) 526-0200

Fax (202) 832-3476

Enumeration date Sep 2, 2005

Last updated in NPPES Mar 26, 2010

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MD21292 (DC) Primary

2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License MD21292 (DC) Secondary

2086S0127X Trauma Surgery Physician Allopathic & Osteopathic Physicians · License MD21292 (DC) Secondary

2086X0206X Surgical Oncology Physician Allopathic & Osteopathic Physicians · License MD21292 (DC) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License MD21292 (DC) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

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Frequently asked questions

Where does William Brownlee practice?

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

What is the NPI number for William Brownlee?

The National Provider Identifier (NPI) for William Brownlee is 1245224369, 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 2010-03-26.