Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cassandra L Grafius

Marriage & Family Therapist in Hesperia, CA · enumerated 2021.

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

National Provider Identifier

1639841216

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Registry record

Entity type Individual (Type 1)

Name Cassandra L Grafius

Sex Female

Practice address 11951 Hesperia Rd, Hesperia, CA, 92345

Phone (760) 956-2345

Fax (760) 956-3761

Enumeration date Oct 1, 2021

Last updated in NPPES Oct 1, 2021

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 98800 (CA) 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.

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Frequently asked questions

What is the NPI number for Cassandra Grafius?

The National Provider Identifier (NPI) for Cassandra Grafius is 1639841216, a Type 1 (individual) record in the CMS NPPES registry.

Where does Cassandra Grafius practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-01.