Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

25a Medical

Pulmonary Disease Physician in Central Islip, NY · enumerated 2022 · authorized official Anthony Theodoris, Owner.

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

National Provider Identifier

1225748494

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Registry record

Entity type Organization (Type 2)

Legal business name 25a Medical

Practice address 100 W Suffolk Avenue Unit G, Central Islip, NY, 11722

Phone (631) 993-5400

Fax (518) 712-1634

Enumeration date Nov 29, 2022

Last updated in NPPES Nov 29, 2022

Taxonomy & classification

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians Primary

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Anthony Theodoris

Title Owner

Phone (631) 993-5400

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

Where is 25a Medical located?

The practice location on file with NPPES is in Central Islip, NY.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-11-29. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-29.