NPI Portal NPI Lookup & Verification

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

Mrs. Kathleen Hassen Stack, PT

Physical Therapist in North Branford, CT · enumerated 2007.

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

National Provider Identifier

1952522930

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Registry record

Entity type Individual (Type 1)
Name Mrs. Kathleen Hassen Stack
Credential PT
Sex Female
Practice address North Branford, CT, 06471
Fax (203) 937-1064
Enumeration date May 1, 2007
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 005200 (CT) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

Other identifiers

Identifier Type State Issuer
005200 Other CT PT LICENSE NUMBER
080005200CT01 Other CT ANTHEM PROVIDER NUMBER
11340795 Other CT CAQH PROVIDER ID

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 Kathleen Hassen Stack?
The National Provider Identifier (NPI) for Kathleen Hassen Stack is 1952522930, a Type 1 (individual) record in the CMS NPPES registry.
Where does Kathleen Hassen Stack practice?
The practice location on file with NPPES is in North Branford, CT. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.