Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alexander Pruden
Social Worker in Port Jefferson, NY · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598458671
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Registry record
Entity type Individual (Type 1)
Name Alexander Pruden
Sex Male
Practice address 100 Highlands Blvd, Ste 101, Port Jefferson, NY, 11777
Phone (631) 331-8200
Enumeration date Jun 2, 2023
Last updated in NPPES Jun 2, 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
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 Alexander Pruden?
Alexander Pruden 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.
Other providers at this practice address
Browse all → Tara Sottile Clinical Social Worker · Port Jefferson, NY NPI 1336426865 Maureen Cataldo Psychiatric/Mental Health Nurse Practitioner · Port Jefferson, NY NPI 1366836652 Georgia Papadakis Clinical Social Worker · Port Jefferson, NY NPI 1518558956 Christine Mckeon Psychiatric/Mental Health Nurse Practitioner · Port Jefferson, NY NPI 1053003558 Abby Sessa Psychiatric/Mental Health Nurse Practitioner · Port Jefferson, NY NPI 1720954266 Patricia Gomez Social Worker · Port Jefferson, NY NPI 1245160936
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-02.