Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Karen Van Valkenburg, OTR/L, CHT

Hand Occupational Therapist in Ladera Ranch, CA · enumerated 2006.

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

National Provider Identifier

1609831767

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Registry record

Entity type Individual (Type 1)

Name Mrs. Karen Van Valkenburg

Credential OTR/L, CHT

Sex Female

Practice address 11 Pickering Circle, Ladera Ranch, CA, 92694

Phone (000) 055-5555

Fax (000) 044-4444

Enumeration date Apr 19, 2006

Last updated in NPPES Nov 29, 2012

Taxonomy & licenses

225XH1200X Hand Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OT 5628 (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

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.

What specialty is Karen Van Valkenburg?

Karen Van Valkenburg is registered in NPPES with the primary taxonomy of Hand Occupational Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-11-29.