Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Sixto Diego Pacheco, OD
Optometrist in Guaynabo, PR · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1457491003
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Registry record
Entity type Individual (Type 1)
Name Dr. Sixto Diego Pacheco
Credential OD
Sex Male
Practice address 100 Ave San Patricio, Ste A2, Guaynabo, PR, 00968
Phone (787) 749-0909
Fax (787) 749-1213
Enumeration date Feb 6, 2007
Last updated in NPPES May 5, 2017
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
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
Where does Sixto Pacheco practice?
The practice location on file with NPPES is in Guaynabo, PR. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sixto Pacheco?
The National Provider Identifier (NPI) for Sixto Pacheco is 1457491003, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-05-05.