NPI Portal NPI Lookup & Verification

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

David Louis Weir, M.D.

Specialist in Lafayette, LA · enumerated 2005 · practices at Corwin Ashford Gordon Thomas PC, Inc.

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

National Provider Identifier

1528064441

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Registry record

Entity type Individual (Type 1)
Name David Louis Weir
Credential M.D.
Sex Male
Practice address Lafayette, LA, 70508
Phone (337) 504-4039
Fax (337) 504-4032
Enumeration date Jun 24, 2005
Last updated in NPPES Jun 17, 2019

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

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 019639 (LA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
1374571 Medicaid LA -

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

Where does David Weir practice?
The practice location on file with NPPES is in Lafayette, LA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for David Weir?
The National Provider Identifier (NPI) for David Weir is 1528064441, 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 2019-06-17.