Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Sandra M Justiniano, D.M.D.
Endodontics in Mayaguez, PR · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1295849875
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Registry record
Entity type Individual (Type 1)
Name Dr. Sandra M Justiniano
Credential D.M.D.
Sex Female
Practice address 117 Calle De Diego Este, Mayaguez, PR, 00680
Phone (787) 652-3502
Fax (787) 652-4306
Enumeration date Aug 19, 2006
Last updated in NPPES Aug 7, 2014
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD 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
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 Sandra Justiniano?
Sandra Justiniano is registered in NPPES with the primary taxonomy of Endodontics. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-07.