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

Dr. Sandra Kantorek, O.D.

Optometrist in Union, NJ · enumerated 2005.

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

National Provider Identifier

1588659437

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Registry record

Entity type Individual (Type 1)

Name Dr. Sandra Kantorek

Credential O.D.

Sex Female

Practice address Union, NJ, 07083

Phone (908) 687-3433

Fax (908) 687-0589

Enumeration date Sep 16, 2005

Last updated in NPPES Sep 29, 2009

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 27OA00368600 (NJ) Primary

152W00000X Optometrist Eye and Vision Services Providers · License TPA 27TO00029600 (NJ) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 27OM00047500 (NJ) Secondary

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
410006990	Other	NJ	PALMETTO GBA-RAILROAD MEDICARE
545317	Other	NJ	AETNA U.S. HEATHCARE ID
222209011	Other	NJ	HORIZON BLUE CROSS & BLUE SHIELD OF NJ
6500580	Other	NJ	GHI PROVIDER ID
F09898	Other	NJ	HEALTH NET ID
C7E921	Other	NJ	EMPIRE BC ID
P479247	Other	NJ	OXFORD HEALTH PLAN ID
334259	Other	NJ	GREAT-WEST HEALTH ID

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Sandra Kantorek?

Sandra Kantorek is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-09-29.