Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katherine Alden

Optician in Williston, VT · enumerated 2023.

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

National Provider Identifier

1023792629

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Registry record

Entity type Individual (Type 1)

Name Katherine Alden

Sex Female

Practice address 863 Harvest Ln, Williston, VT, 05495

Phone (802) 878-2633

Enumeration date Jun 14, 2023

Last updated in NPPES Apr 5, 2024

Taxonomy & licenses

156FX1800X Optician Eye and Vision Services Providers · License 028-0123759 (VT) Primary

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 Katherine Alden?

Katherine Alden is registered in NPPES with the primary taxonomy of Optician. 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 2024-04-05.