Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Danny Brown, M.D.

Preventive Medicine/Occupational Environmental Medicine Physician in Prescott, AZ · enumerated 2005.

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

National Provider Identifier

1851374789

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Registry record

Entity type Individual (Type 1)

Name Dr. William Danny Brown

Credential M.D.

Sex Male

Practice address 1210 Longview Dr, Prescott, AZ, 86305

Phone (928) 235-2323

Enumeration date Nov 23, 2005

Last updated in NPPES Oct 6, 2025

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 14288 (AZ) Secondary

2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician Allopathic & Osteopathic Physicians · License 14288 (AZ) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does William Brown practice?

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

What is the NPI number for William Brown?

The National Provider Identifier (NPI) for William Brown is 1851374789, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-06.