NPI Portal NPI Lookup & Verification

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

Dr. Craig A Cassey, O.D.

Optometrist in Brookhaven, PA · enumerated 2005.

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

National Provider Identifier

1669463535

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Registry record

Entity type Individual (Type 1)
Name Dr. Craig A Cassey
Credential O.D.
Sex Male
Practice address Brookhaven, PA, 19015
Phone (610) 872-6077
Fax (610) 872-2845
Enumeration date Oct 31, 2005
Last updated in NPPES Jul 8, 2007

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 OEG000453 (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
0110498000 Other PA INDEPENDENCE BLUE CROSS
513325 Other PA HIGHMARK
55515 Other PA AETNA

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.

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Frequently asked questions

Is NPI 1669463535 active?
Yes, as of the latest NPPES snapshot, NPI 1669463535 is active (record last updated 2007-07-08).
How do I verify Craig Cassey's NPI record?
Cross-check NPI 1669463535 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.