Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Wai Chung Yong, MD

Rheumatology Physician in Alhambra, CA · enumerated 2014.

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

National Provider Identifier

1740695790

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Registry record

Entity type Individual (Type 1)

Name Wai Chung Yong

Credential MD

Sex Male

Practice address 925 S Garfield Ave, Alhambra, CA, 91801

Phone (626) 282-0282

Fax (626) 282-0939

Enumeration date Jun 29, 2014

Last updated in NPPES Dec 1, 2022

Taxonomy & licenses

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License A175526 (CA) 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
1740695790	Medicaid	CA	-

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 Wai Chung Yong's NPI record?

Cross-check NPI 1740695790 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1740695790 active?

Yes, as of the latest NPPES snapshot, NPI 1740695790 is active (record last updated 2022-12-01).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-01.