NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. David Seung Hee Yoon, D.M.D.

General Practice Dentistry in Springfield, VA · enumerated 2009.

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

National Provider Identifier

1033340021

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Registry record

Entity type Individual (Type 1)
Name Dr. David Seung Hee Yoon
Credential D.M.D.
Sex Male
Practice address Springfield, VA, 22150
Fax (703) 451-1961
Enumeration date Aug 7, 2009
Last updated in NPPES Jan 7, 2022

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 0401414548 (VA) Primary
DMD — Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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.

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Frequently asked questions

Where does David Yoon practice?
The practice location on file with NPPES is in Springfield, VA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for David Yoon?
The National Provider Identifier (NPI) for David Yoon is 1033340021, 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 2022-01-07.