Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Charles Eugene Diaz
Optician in Lutz, FL · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1174216626
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Registry record
Entity type Individual (Type 1)
Name Charles Eugene Diaz
Sex Male
Practice address 1575 Land O Lakes Blvd, Lutz, FL, 33549
Phone (813) 909-2598
Fax (813) 909-9381
Enumeration date May 31, 2023
Last updated in NPPES May 31, 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
What specialty is Charles Diaz?
Charles Diaz 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.
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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-31.