Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John A. Brangan, DMD

General Practice Dentistry in Somerville, MA · enumerated 2006.

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

National Provider Identifier

1972570968

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Registry record

Entity type Individual (Type 1)

Name John A. Brangan

Credential DMD

Sex Male

Practice address 40 Holland Street - Davis Square, Somerville, MA, 02144

Phone (617) 629-6080

Enumeration date Mar 8, 2006

Last updated in NPPES Apr 8, 2009

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 19895 (MA) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

Other identifiers

Identifier	Type	State	Issuer
PH255	Other	MA	HARVARD PILGRIM
X08026	Other	MA	BCBS - DENTAL

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

What specialty is John Brangan?

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

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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-04-08.