Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joon Yau Leong, MD

Urology Physician in Glendale, CA · enumerated 2020.

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

National Provider Identifier

1477174332

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Joon Yau Leong

Credential MD

Sex Male

Practice address 1812 Verdugo Blvd, Glendale, CA, 91208

Phone (818) 790-7100

Enumeration date May 2, 2020

Last updated in NPPES Jul 24, 2025

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License MT220018 (PA) 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

What specialty is Joon Yau Leong?

Joon Yau Leong is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-24.