Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John William Dean III, D.D.S.

Periodontics in New Haven, CT · enumerated 2006.

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

National Provider Identifier

1386756658

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. John William Dean III

Credential D.D.S.

Sex Male

Practice address 123 York St, Suite H, New Haven, CT, 06511

Phone (203) 773-9186

Enumeration date Aug 31, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223P0300X Periodontics Dental Providers · License 007448 (CT) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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

How do I verify John Dean's NPI record?

Cross-check NPI 1386756658 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1386756658 active?

Yes, as of the latest NPPES snapshot, NPI 1386756658 is active (record last updated 2007-07-08).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.