Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Cassandra C Hallstone, LMFT, MHP, CMHS

Marriage & Family Therapist in Puyallup, WA · enumerated 2008.

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

National Provider Identifier

1326225566

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Registry record

Entity type Individual (Type 1)

Name Ms. Cassandra C Hallstone

Credential LMFT, MHP, CMHS

Sex Female

Practice address 325 E Pioneer, Puyallup, WA, 98372

Phone (970) 618-8645

Enumeration date Jan 30, 2008

Last updated in NPPES Nov 20, 2018

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License RC00059650 (WA) Secondary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License LF60505501 (WA) Primary

LMFT · Licensed Marriage and Family Therapist: A licensed therapist specializing in relational and family psychotherapy. About the LMFT 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 specialty is Cassandra Hallstone?

Cassandra Hallstone is registered in NPPES with the primary taxonomy of Marriage & Family Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-20.