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

Alexander Jamal Watson, LCSW

Social Worker in Worcester, MA · enumerated 2021.

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

National Provider Identifier

1851066435

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Registry record

Entity type Individual (Type 1)
Name Alexander Jamal Watson
Credential LCSW
Sex Male
Practice address Worcester, MA, 01605
Enumeration date Aug 15, 2021
Last updated in NPPES Aug 2, 2025

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

Taxonomy & licenses

102L00000X Psychoanalyst Behavioral Health & Social Service Providers Secondary
104100000X Social Worker Behavioral Health & Social Service Providers · License LCSW230017 (MA) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW 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 Alexander Watson practice?
The practice location on file with NPPES is in Worcester, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alexander Watson?
The National Provider Identifier (NPI) for Alexander Watson is 1851066435, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-02.