NPI Portal NPI Lookup & Verification

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

Mrs. Katherine A Zwanziger, D.P.T.

Orthopedic Physical Therapist in Gilbert, AZ · enumerated 2006.

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

National Provider Identifier

1871515171

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Registry record

Entity type Individual (Type 1)
Name Mrs. Katherine A Zwanziger
Credential D.P.T.
Sex Female
Practice address Gilbert, AZ, 85297
Fax (866) 939-2673
Enumeration date Jul 24, 2006
Last updated in NPPES Jan 20, 2014

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 7180 (AZ) Secondary
2251X0800X Orthopedic Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 7180 (AZ) Primary
DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession. About the DPT 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.

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Frequently asked questions

Where does Katherine Zwanziger practice?
The practice location on file with NPPES is in Gilbert, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Katherine Zwanziger?
The National Provider Identifier (NPI) for Katherine Zwanziger is 1871515171, 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 2014-01-20.