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Dr. Lester Yan, MD

Family Medicine Physician in Hayward, WI · enumerated 2006.

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

National Provider Identifier

1497862387

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Registry record

Entity type Individual (Type 1)
Name Dr. Lester Yan
Credential MD
Sex Male
Practice address 13380 W Trepania Rd, Hayward, WI, 54843
Phone (715) 638-5100
Fax (715) 634-2740
Enumeration date Aug 24, 2006
Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 33218 (WI) 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
730290003 Other WI MEDICARE NUMBER
31848000 Medicaid WI -

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

Where does Lester Yan practice?
The practice location on file with NPPES is in Hayward, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Lester Yan?
The National Provider Identifier (NPI) for Lester Yan is 1497862387, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.