NPI Portal NPI Lookup & Verification

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

Mr. David Paul Leonard, MSW

Clinical Social Worker in Brockton, MA · enumerated 2006 · practices at Boston Va Hospital.

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

National Provider Identifier

1548365380

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Registry record

Entity type Individual (Type 1)
Name Mr. David Paul Leonard
Credential MSW
Sex Male
Practice address Brockton, MA, 02301
Phone (774) 826-1809
Enumeration date Sep 14, 2006
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 106572 (MA) Primary

Other identifiers

Identifier Type State Issuer
106572 Other MA LICENSE

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 David Leonard?
David Leonard is registered in NPPES with the primary taxonomy of Clinical Social Worker. 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.

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