Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Brett Allen Johnson, M.D.

Urology Physician in Dallas, TX · enumerated 2012.

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

National Provider Identifier

1679830442

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Registry record

Entity type Individual (Type 1)

Name Dr. Brett Allen Johnson

Credential M.D.

Sex Male

Practice address 2001 Inwood Dr Urology - Ut Southwestern Medical Center, Dallas, TX, 75390

Phone (214) 648-2450

Enumeration date Apr 18, 2012

Last updated in NPPES Oct 30, 2020

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License R1393 (TX) 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

How do I verify Brett Johnson's NPI record?

Cross-check NPI 1679830442 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1679830442 active?

Yes, as of the latest NPPES snapshot, NPI 1679830442 is active (record last updated 2020-10-30).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-30.