Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Zachary Evan Royster, OD

Optometrist in London, KY · enumerated 2025 · practices at 20/20 Eyecare of London, LLC.

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

National Provider Identifier

1023989746

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Registry record

Entity type Individual (Type 1)

Name Zachary Evan Royster

Credential OD

Sex Male

Practice address 677 Meyers Baker Rd, London, KY, 40741

Phone (606) 878-7500

Fax (606) 878-8005

Enumeration date Sep 16, 2025

Last updated in NPPES Sep 16, 2025

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 2459DT (KY) 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

What specialty is Zachary Royster?

Zachary Royster is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

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20/20 Eyecare of London, LLC Optometrist · London, KY NPI 1619131281 Jarrod Napier Optometrist · London, KY NPI 1871104364

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-16.