Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cassandra Mason, RDN

Physician Assistant in Walla Walla, WA · enumerated 2021.

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

National Provider Identifier

1760077705

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Registry record

Entity type Individual (Type 1)

Name Cassandra Mason

Credential RDN

Sex Female

Practice address 112 Quail Ln, Walla Walla, WA, 99362

Phone (720) 237-4895

Enumeration date Mar 2, 2021

Last updated in NPPES Dec 11, 2025

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA70072208 (WA) 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

Where does Cassandra Mason practice?

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

What is the NPI number for Cassandra Mason?

The National Provider Identifier (NPI) for Cassandra Mason is 1760077705, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-11.