Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diana Hollenhorst, BA.ED., ECE P-3

Behavior Analyst in Everett, WA · enumerated 2015.

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

National Provider Identifier

1730563222

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Registry record

Entity type Individual (Type 1)

Name Diana Hollenhorst

Credential BA.ED., ECE P-3

Sex Female

Practice address 900 Pacific Ave, Everett, WA, 98201

Phone (425) 258-7311

Enumeration date Jul 14, 2015

Last updated in NPPES Dec 10, 2015

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License CG60490899 (WA) Primary

Other identifiers

Identifier	Type	State	Issuer
2046882	Medicaid	WA	-

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 Diana Hollenhorst?

The National Provider Identifier (NPI) for Diana Hollenhorst is 1730563222, a Type 1 (individual) record in the CMS NPPES registry.

Where does Diana Hollenhorst practice?

The practice location on file with NPPES is in Everett, WA. 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 2015-12-10.