Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Timothy Drew Walker, OD

Optometrist in Grand Blanc, MI · enumerated 2018.

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

National Provider Identifier

1265928717

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Registry record

Entity type Individual (Type 1)

Name Dr. Timothy Drew Walker

Credential OD

Sex Male

Practice address 11225 S Saginaw St, Grand Blanc, MI, 48439

Phone (810) 694-3937

Enumeration date Jul 9, 2018

Last updated in NPPES Jul 9, 2018

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 4901005136 (MI) 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 Timothy Walker practice?

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

What is the NPI number for Timothy Walker?

The National Provider Identifier (NPI) for Timothy Walker is 1265928717, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-07-09.