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

Dr. Lawrence T Ginsberg, O.D.

Optometrist in East Providence, RI · enumerated 2006.

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

National Provider Identifier

1639111271

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Registry record

Entity type Individual (Type 1)

Name Dr. Lawrence T Ginsberg

Credential O.D.

Sex Male

Practice address East Providence, RI, 02914

Phone (401) 431-2929

Fax (401) 431-2031

Enumeration date Jun 11, 2006

Last updated in NPPES Mar 31, 2008

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 OD00499 (RI) Primary

332H00000X Eyewear Supplier Suppliers · License OD00499 (RI) 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
522108187-05	Other	RI	TRICARE
7908-8	Other	RI	BLUE CROSS
003200	Other	RI	BLUE CHIP
22-00206	Other	RI	UNITED HEALTH
9007908	Medicaid	RI	-

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 1639111271 active?

Yes, as of the latest NPPES snapshot, NPI 1639111271 is active (record last updated 2008-03-31).

How do I verify Lawrence Ginsberg's NPI record?

Cross-check NPI 1639111271 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 2008-03-31.