NPI Portal NPI Lookup & Verification

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

Ms. Katherine Louise Weinstock, LICSW

Clinical Social Worker in Newburyport, MA · enumerated 2007 · practices at Cognitive & Behavior Therapies of Newburyport, P.C..

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

National Provider Identifier

1770792012

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Registry record

Entity type Individual (Type 1)
Name Ms. Katherine Louise Weinstock
Credential LICSW
Sex Female
Practice address Newburyport, MA, 01950
Phone (978) 463-6635
Enumeration date May 22, 2007
Last updated in NPPES Oct 2, 2008

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 107257 (MA) Primary

Other identifiers

Identifier Type State Issuer
WEP50188 Other MA BCBS OF MA

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

What is the NPI number for Katherine Weinstock?
The National Provider Identifier (NPI) for Katherine Weinstock is 1770792012, a Type 1 (individual) record in the CMS NPPES registry.
Where does Katherine Weinstock practice?
The practice location on file with NPPES is in Newburyport, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-02.