Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cassandra Knox

Physician Assistant in Appleton, WI · enumerated 2020.

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

National Provider Identifier

1669086229

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Registry record

Entity type Individual (Type 1)

Name Cassandra Knox

Sex Female

Practice address 2500 E Capitol Dr, Appleton, WI, 54911

Phone (920) 965-0345

Enumeration date Sep 1, 2020

Last updated in NPPES Jun 25, 2025

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers 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

Is NPI 1669086229 active?

Yes, as of the latest NPPES snapshot, NPI 1669086229 is active (record last updated 2025-06-25).

How do I verify Cassandra Knox's NPI record?

Cross-check NPI 1669086229 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-25.