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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William B Thomas, O.D.

Optometrist in Gallipolis, OH · enumerated 2007 · practices at Integrity Psychiatric Solutions.

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

National Provider Identifier

1467636308

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Registry record

Entity type Individual (Type 1)
Name Dr. William B Thomas
Credential O.D.
Sex Male
Practice address 346 3rd Ave, Gallipolis, OH, 45631
Phone (740) 446-0152
Fax (740) 446-0450
Enumeration date Dec 27, 2007
Last updated in NPPES Nov 13, 2008

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 2842T1607 (OH) 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
0345639 Medicaid OH -
0808110001 Other OH DMERC

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

What specialty is William Thomas?
William Thomas 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-13.