Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Samuel I Barr, DMD

Q: What is the NPI number for Samuel Barr?

The National Provider Identifier (NPI) for Samuel Barr is 1649284894, a Type 1 (individual) record in the CMS NPPES registry.

General Practice Dentistry in Boston, MA · enumerated 2006.

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

National Provider Identifier

1649284894

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Registry record

Entity type Individual (Type 1)

Name Samuel I Barr

Credential DMD

Sex Male

Practice address 188 Longwood Ave, Boston, MA, 02115

Phone (617) 432-1414

Enumeration date Jul 27, 2006

Last updated in NPPES Apr 16, 2023

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 034173 (NY) Secondary

1223G0001X General Practice Dentistry Dental Providers · License DN13951 (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

What is the NPI number for Samuel Barr?

The National Provider Identifier (NPI) for Samuel Barr is 1649284894, a Type 1 (individual) record in the CMS NPPES registry.

Where does Samuel Barr practice?

The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-16.