Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alexandra Hernandez, MSW
Social Worker in Guaynabo, PR · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538611512
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Registry record
Entity type Individual (Type 1)
Name Alexandra Hernandez
Credential MSW
Sex Female
Practice address 17 Calle 2, Suite 520, Guaynabo, PR, 00968
Phone (787) 248-1302
Enumeration date Oct 26, 2016
Last updated in NPPES Oct 26, 2016
Taxonomy & licenses
101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 05-20-5665 (PR) Secondary
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 Alexandra Hernandez?
Alexandra Hernandez is registered in NPPES with the primary taxonomy of Social Worker. 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-26.