Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Benjamin Kwak, OD

Optometrist in Warrenton, VA · enumerated 2023 · practices at Warrenton Eye Associates.

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

National Provider Identifier

1548035249

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Registry record

Entity type Individual (Type 1)

Name Benjamin Kwak

Credential OD

Sex Male

Practice address 508 Fletcher Dr, Warrenton, VA, 20186

Phone (540) 216-7632

Enumeration date Nov 22, 2023

Last updated in NPPES Dec 4, 2023

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 0618003353 (VA) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD 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

Where does Benjamin Kwak practice?

The practice location on file with NPPES is in Warrenton, VA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Benjamin Kwak?

The National Provider Identifier (NPI) for Benjamin Kwak is 1548035249, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Heidi Calladine Optometrist · Warrenton, VA NPI 1720154115 Warrenton Eye Associates Optometrist · Warrenton, VA NPI 1356794697

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-04.