Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Thomas V. Difusco, D.C.

Chiropractor in Oceanside, NY · enumerated 2007.

Data current as of Jul 11, 2026 · sourced from CMS NPPES

National Provider Identifier

1164616991

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas V. Difusco

Credential D.C.

Sex Male

Practice address Oceanside, NY, 11572

Phone (516) 316-2597

Enumeration date Sep 5, 2007

Last updated in NPPES Sep 29, 2008

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 007297 (NY) Primary

111N00000X Chiropractor Chiropractic Providers · License DC24710 (CA) Secondary

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1164616991 active?

Yes — as of the latest NPPES snapshot, NPI 1164616991 is active (record last updated 2008-09-29).

How do I verify Thomas Difusco's NPI record?

Cross-check NPI 1164616991 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-09-29.