Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Joseph Gillenwater, LDO
Optician in South Point, OH · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801661335
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Registry record
Entity type Individual (Type 1)
Name Joseph Gillenwater
Credential LDO
Sex Male
Practice address 432 Private Drive 288, South Point, OH, 45680
Phone (740) 894-4749
Fax (740) 894-4827
Enumeration date Nov 15, 2023
Last updated in NPPES Nov 15, 2023
Taxonomy & licenses
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.
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 Joseph Gillenwater?
Joseph Gillenwater 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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-15.