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

Anthony J Defazio, OD

Optometrist in Du Bois, PA · enumerated 2006.

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

National Provider Identifier

1851332019

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Registry record

Entity type Individual (Type 1)

Name Anthony J Defazio

Credential OD

Sex Male

Practice address Du Bois, PA, 15801

Phone (814) 371-4020

Fax (814) 371-1930

Enumeration date Jun 9, 2006

Last updated in NPPES Dec 4, 2015

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

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OEG000621 (PA) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
0366780001	Other	PA	DMERC
DE53721	Other	PA	PA BLUE SHIELD

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 1851332019 active?

Yes, as of the latest NPPES snapshot, NPI 1851332019 is active (record last updated 2015-12-04).

How do I verify Anthony Defazio's NPI record?

Cross-check NPI 1851332019 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 2026-07-13. Provider record last updated 2015-12-04.