Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Todd Gillihan, O.D.

Optometrist in Ann Arbor, MI · enumerated 2007.

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

National Provider Identifier

1255474045

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Registry record

Entity type Individual (Type 1)

Name Dr. Todd Gillihan

Credential O.D.

Sex Male

Practice address 117 S Main St, Ann Arbor, MI, 48104

Phone (734) 665-5306

Fax (734) 930-2383

Enumeration date Feb 14, 2007

Last updated in NPPES Jun 14, 2011

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 4901004251 (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
1255474045	Other	MI	VSP VISION CARE
1255474045	Medicaid	MI	-

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

Where does Todd Gillihan practice?

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

What is the NPI number for Todd Gillihan?

The National Provider Identifier (NPI) for Todd Gillihan is 1255474045, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-14.