Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cynthia Lorah Mostowy, AS, BS, RDH

Dental Hygienist in East Lyme, CT · enumerated 2006.

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

National Provider Identifier

1407876790

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Registry record

Entity type Individual (Type 1)

Name Cynthia Lorah Mostowy

Credential AS, BS, RDH

Sex Female

Practice address 335 Boston Post Rd, East Lyme, CT, 06333

Phone (860) 961-7557

Enumeration date Jul 20, 2006

Last updated in NPPES Oct 2, 2009

Taxonomy & licenses

124Q00000X Dental Hygienist Dental Providers · License 4086 (CT) Primary

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

How do I verify Cynthia Mostowy's NPI record?

Cross-check NPI 1407876790 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1407876790 active?

Yes, as of the latest NPPES snapshot, NPI 1407876790 is active (record last updated 2009-10-02).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-02.