Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kathryn Walker, PT

Physical Therapist in Arlington, VA · enumerated 2007.

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

National Provider Identifier

1275754111

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Registry record

Entity type Individual (Type 1)

Name Kathryn Walker

Credential PT

Sex Female

Practice address 3833 Fairfax Dr, Suite 300, Arlington, VA, 22203

Phone (301) 581-8054

Fax (301) 564-0284

Enumeration date May 1, 2007

Last updated in NPPES Oct 8, 2009

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 2305204995 (VA) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT 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 Kathryn Walker practice?

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

What is the NPI number for Kathryn Walker?

The National Provider Identifier (NPI) for Kathryn Walker is 1275754111, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-08.