Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexander William Fleming, LMSW

Social Worker in Plattsburgh, NY · enumerated 2020.

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

National Provider Identifier

1629681911

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Registry record

Entity type Individual (Type 1)

Name Alexander William Fleming

Credential LMSW

Sex Male

Practice address 22 Us Oval Ste 100, Plattsburgh, NY, 12903

Phone (518) 563-8000

Enumeration date Aug 26, 2020

Last updated in NPPES Aug 26, 2020

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 107958-01 (NY) Primary

Other identifiers

Identifier	Type	State	Issuer
107958-01	Medicaid	NY	-

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

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.

What specialty is Alexander Fleming?

Alexander Fleming is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-26.