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

Matthew J Kaim, O.D.

Optometrist in Winthrop, MA · enumerated 2006 · practices at Matthew J. Kaim.

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

National Provider Identifier

1194760389

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Registry record

Entity type Individual (Type 1)

Name Matthew J Kaim

Credential O.D.

Sex Male

Practice address Winthrop, MA, 02152

Phone (617) 846-1734

Fax (617) 846-3292

Enumeration date Jun 19, 2006

Last updated in NPPES Oct 13, 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 3084 (MA) 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
0011850	Other	MA	NEIGHBORHEALTH PLAN
W20357	Other	MD	BLUE CROSS
114365	Other	-	EYE MED
2517744	Other	MA	AETNA
0392103	Medicaid	MA	-
732780	Other	MA	TUFTS
W15952	Other	MA	BLUE CROSS
14354	Other	-	SPECTERA
7582	Other	-	DAVIS VISION
AA10590	Other	MA	HARVARD PILGRIM
MA3084	Other	-	VISION BENEFITS OF AMERIC
22+00522	Other	MA	UNITED HEALTHCARE

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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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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 Matthew Kaim?

Matthew Kaim 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.

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Matthew J. Kaim Optometrist · Winthrop, MA NPI 1992983894

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-13.