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

Dr. Greg S. Levin, O.D.

Optometrist in Warwick, RI · enumerated 2006 · practices at Charles C Calenda MD Inc.

Data current as of Jul 11, 2026 · sourced from CMS NPPES

National Provider Identifier

1407929169

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Registry record

Entity type Individual (Type 1)
Name Dr. Greg S. Levin
Credential O.D.
Sex Male
Practice address Warwick, RI, 02886
Phone (401) 737-2200
Enumeration date Nov 17, 2006
Last updated in NPPES Feb 26, 2017

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 ODTG00497 (RI) Primary
152W00000X Optometrist Eye and Vision Services Providers · License 3729 (MA) Secondary
OD — Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

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 1407929169 active?
Yes — as of the latest NPPES snapshot, NPI 1407929169 is active (record last updated 2017-02-26).
How do I verify Greg Levin's NPI record?
Cross-check NPI 1407929169 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 2026-07-11. Provider record last updated 2017-02-26.