Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Guilherme William Dwin, LDO
Optician in Plantation, FL · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1992925929
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Registry record
Entity type Individual (Type 1)
Name Guilherme William Dwin
Credential LDO
Sex Male
Practice address 1767 N University Dr, Plantation, FL, 33322
Phone (954) 472-2422
Fax (954) 476-2023
Enumeration date May 1, 2007
Last updated in NPPES May 26, 2010
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 Guilherme Dwin?
Guilherme Dwin 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
Browse all → Robert Horowitz Optometrist · Plantation, FL NPI 1942393780 Robert S. Horowitz Optometrist and Associates PA Optometrist · Plantation, FL NPI 1093016495 20 20 Optical Dispensatory, Inc. Eyewear Supplier · Plantation, FL NPI 1093010696 Brianna Herring, O.D. Pllc Optometrist · Plantation, FL NPI 1124800982
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-05-26.