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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aaron P Brown, M.D.

Radiation Oncology Physician in Everett, WA · enumerated 2014 · practices at Northwest Washington Radiation Oncology.

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

National Provider Identifier

1720401946

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Registry record

Entity type Individual (Type 1)
Name Aaron P Brown
Credential M.D.
Sex Male
Practice address 1717 13th St Ste 200, Everett, WA, 98201
Phone (425) 297-5590
Fax (425) 297-5595
Enumeration date Jan 23, 2014
Last updated in NPPES Feb 24, 2026

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License MD60446485 (WA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
MD60446485 Other WA WA SATE MEDICAL LICENSE
BP10037860 Other TX TX RESIDENT MEDICAL LICENSE/PERMIT NUMBER

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

How do I verify Aaron Brown's NPI record?
Cross-check NPI 1720401946 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1720401946 active?
Yes, as of the latest NPPES snapshot, NPI 1720401946 is active (record last updated 2026-02-24).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-24.