NPI Portal NPI Lookup & Verification

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

Jeffrey Cahn, D.M.D.

General Practice Dentistry in Stamford, CT · enumerated 2006.

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

National Provider Identifier

1831299916

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Registry record

Entity type Individual (Type 1)
Name Jeffrey Cahn
Credential D.M.D.
Sex Male
Practice address Stamford, CT, 06905
Phone (203) 323-2882
Enumeration date Sep 25, 2006
Last updated in NPPES Dec 17, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

122300000X Dentist Dental Providers · License 6456 (CT) Secondary
1223G0001X General Practice Dentistry Dental Providers · License 6456 (CT) Primary
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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

How do I verify Jeffrey Cahn's NPI record?
Cross-check NPI 1831299916 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1831299916 active?
Yes, as of the latest NPPES snapshot, NPI 1831299916 is active (record last updated 2014-12-17).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-12-17.