Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lawrence Dwight Barr, M.D.

Internal Medicine Physician in Attleboro, MA · enumerated 2006.

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

National Provider Identifier

1225192321

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Registry record

Entity type Individual (Type 1)

Name Lawrence Dwight Barr

Credential M.D.

Sex Male

Practice address Sturdy Memorial Hospital, 211 Park Street, Attleboro, MA, 02703

Phone (508) 236-7600

Enumeration date Dec 21, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 150414 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does Lawrence Dwight Barr practice?

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

What is the NPI number for Lawrence Dwight Barr?

The National Provider Identifier (NPI) for Lawrence Dwight Barr is 1225192321, a Type 1 (individual) record in the CMS NPPES registry.

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