Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Geriatrics and Longevity Treatment Specialist, PC

Geriatric Medicine (Family Medicine) Physician in Hackensack, NJ · enumerated 2011 · authorized official Stefanos Pantagis, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1306121504

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Registry record

Entity type Organization (Type 2)

Legal business name Geriatrics and Longevity Treatment Specialist, PC

Practice address 810 Main St, Hackensack, NJ, 07601

Phone (201) 663-7375

Enumeration date Oct 19, 2011

Last updated in NPPES Nov 13, 2013

Taxonomy & classification

207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Stefanos Pantagis

Title Owner

Phone (201) 663-7375

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Geriatrics and Longevity Treatment Specialist, PC?

The NPI for Geriatrics and Longevity Treatment Specialist, PC is 1306121504, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Geriatrics and Longevity Treatment Specialist, PC?

NPPES lists Stefanos Pantagis (Owner) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-11-13.