NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Brian Nelson Lee, MD

Occupational Medicine Physician in Irwindale, CA · enumerated 2006.

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

National Provider Identifier

1912070327

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Brian Nelson Lee
Credential MD
Sex Male
Practice address Irwindale, CA, 91706
Phone (626) 960-5361
Fax (626) 337-0833
Enumeration date Nov 15, 2006
Last updated in NPPES Oct 29, 2011

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2083X0100X Occupational Medicine Physician Allopathic & Osteopathic Physicians · License G85119 (CA) 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 Brian Lee practice?
The practice location on file with NPPES is in Irwindale, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Brian Lee?
The National Provider Identifier (NPI) for Brian Lee is 1912070327, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-29.