Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kam Lun Robert Au Yeung, M.D.

Hospitalist Physician in Fresno, CA · enumerated 2006.

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

National Provider Identifier

1669449823

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Registry record

Entity type Individual (Type 1)

Name Kam Lun Robert Au Yeung

Credential M.D.

Sex Male

Practice address 2823 Fresno St, Fresno, CA, 93721

Phone (559) 459-4390

Enumeration date Mar 7, 2006

Last updated in NPPES Jan 27, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License C142071 (CA) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License C142071 (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

Is NPI 1669449823 active?

Yes, as of the latest NPPES snapshot, NPI 1669449823 is active (record last updated 2021-01-27).

How do I verify Kam Lun Au Yeung's NPI record?

Cross-check NPI 1669449823 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Fabian Nwadei Internal Medicine Physician · Fresno, CA NPI 1457348310 Catherine Thaxter Physician Assistant · Fresno, CA NPI 1073502449 Brian Chinnock Emergency Medicine Physician · Fresno, CA NPI 1861481947 Ramona Guzman Family Nurse Practitioner · Fresno, CA NPI 1578554150 Colleen Black Advanced Practice Midwife · Fresno, CA NPI 1801879879 Leslie Olson Orthopaedic Surgery Physician · Fresno, CA NPI 1427032812 Lydia Hadley Family Nurse Practitioner · Fresno, CA NPI 1588641617 Lisa Moreno Surgical Physician Assistant · Fresno, CA NPI 1831166800

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-27.