Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alec Lotstein, LICSW

Clinical Social Worker in Framingham, MA · enumerated 2018.

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

National Provider Identifier

1306320189

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Registry record

Entity type Individual (Type 1)

Name Alec Lotstein

Credential LICSW

Sex Male

Practice address 945 Concord St, Framingham, MA, 01701

Phone (860) 806-2527

Enumeration date Sep 18, 2018

Last updated in NPPES Mar 10, 2025

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 226146 (MA) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 126124 (MA) Primary

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 Alec Lotstein practice?

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

What is the NPI number for Alec Lotstein?

The National Provider Identifier (NPI) for Alec Lotstein is 1306320189, 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 2025-03-10.