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Leonard R Yang, MD

Emergency Medicine Physician in Winchester, VA · enumerated 2006.

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

National Provider Identifier

1790744647

Verified

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Registry record

Entity type Individual (Type 1)
Name Leonard R Yang
Credential MD
Sex Male
Practice address 1840 Amherst St, Winchester, VA, 22601
Phone (540) 536-8000
Fax (540) 536-7681
Enumeration date Mar 20, 2006
Last updated in NPPES Mar 3, 2021

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 25633 (WV) Secondary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 0101299767 (VA) 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
5852480 Medicaid VA -
1805908000 Medicaid WV -

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

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.
What specialty is Leonard Yang?
Leonard Yang is registered in NPPES with the primary taxonomy of Emergency Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-03.