Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Katherine Mary Walsh, P.T.

Pediatric Physical Therapist in Ballston Lake, NY · enumerated 2008.

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

National Provider Identifier

1891948360

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Registry record

Entity type Individual (Type 1)

Name Ms. Katherine Mary Walsh

Credential P.T.

Sex Female

Practice address 24 Sheldon Dr, Ballston Lake, NY, 12019

Phone (518) 399-3019

Enumeration date Oct 28, 2008

Last updated in NPPES Oct 28, 2008

Taxonomy & licenses

2251P0200X Pediatric Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 015615 (NY) 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

What is the NPI number for Katherine Walsh?

The National Provider Identifier (NPI) for Katherine Walsh is 1891948360, a Type 1 (individual) record in the CMS NPPES registry.

Where does Katherine Walsh practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-28.