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

Dr. John Thomas Badger, D.M.D.

Dentist in Wakefield, MA · enumerated 2015 · practices at Gerry J.Casazza, D.M.D, F.A.G.D. & Assciates.

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

National Provider Identifier

1689039653

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Registry record

Entity type Individual (Type 1)

Name Dr. John Thomas Badger

Credential D.M.D.

Sex Male

Practice address Wakefield, MA, 01880

Phone (781) 549-8390

Enumeration date Dec 17, 2015

Last updated in NPPES Aug 6, 2025

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

Taxonomy & licenses

122300000X Dentist Dental Providers · License 31569 (TX) Secondary

122300000X Dentist Dental Providers · License DN10000046 (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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is John Badger?

John Badger is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-06.