Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cassidy Gudmundsson

Behavior Analyst in Sterling, VA · enumerated 2021.

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

National Provider Identifier

1467020602

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Registry record

Entity type Individual (Type 1)

Name Cassidy Gudmundsson

Sex Female

Practice address 45305 Catalina Ct Ste 101, Sterling, VA, 20166

Phone (703) 750-0633

Enumeration date Jun 15, 2021

Last updated in NPPES Jun 15, 2021

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service 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

What specialty is Cassidy Gudmundsson?

Cassidy Gudmundsson is registered in NPPES with the primary taxonomy of Behavior Analyst. 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 2021-06-15.