Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joy Marie John, DMD

Pediatric Dentistry in Duxbury, MA · enumerated 2014.

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

National Provider Identifier

1346653409

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Registry record

Entity type Individual (Type 1)

Name Dr. Joy Marie John

Credential DMD

Sex Female

Practice address 95 Tremont St. Suite 18, Duxbury, MA, 02332

Phone (781) 934-7111

Enumeration date Jun 6, 2014

Last updated in NPPES Jun 6, 2014

Taxonomy & licenses

1223P0221X Pediatric Dentistry Dental Providers · License 20495 (MA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1346653409 active?

Yes, as of the latest NPPES snapshot, NPI 1346653409 is active (record last updated 2014-06-06).

How do I verify Joy John's NPI record?

Cross-check NPI 1346653409 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-06.