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

Katherine M Castle

Registered Nurse in East Aurora, NY · enumerated 2025.

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

National Provider Identifier

1679442966

Verified

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Registry record

Entity type Individual (Type 1)

Name Katherine M Castle

Sex Female

Practice address East Aurora, NY, 14052

Phone (716) 861-9250

Enumeration date Nov 4, 2025

Last updated in NPPES Nov 4, 2025

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 371200 (NY) Primary

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 Castle?

The National Provider Identifier (NPI) for Katherine Castle is 1679442966, a Type 1 (individual) record in the CMS NPPES registry.

Where does Katherine Castle practice?

The practice location on file with NPPES is in East Aurora, 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 2025-11-04.