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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Chad Elston Linsley, O.D.

Optometrist in Mason, MI · enumerated 2010 · practices at Dr. Glen A. Linsley Optometrist, PC.

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

National Provider Identifier

1477865863

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Registry record

Entity type Individual (Type 1)
Name Dr. Chad Elston Linsley
Credential O.D.
Sex Male
Practice address 109 E Maple St, Mason, MI, 48854
Phone (517) 676-4499
Enumeration date Jul 14, 2010
Last updated in NPPES Jul 23, 2012

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 4901004584 (MI) Primary
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier Type State Issuer
0C30213 Other MI BLUE CROSS BLUE SHIELD OF MICHIGAN

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 Chad Linsley?
Chad Linsley 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-23.