NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Debra Olsen, HAP

Dental Hygienist in Glendale, CA · enumerated 2007.

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

National Provider Identifier

1871796912

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Registry record

Entity type Individual (Type 1)
Name Ms. Debra Olsen
Credential HAP
Sex Female
Practice address Glendale, CA, 91202
Fax (818) 338-9218
Enumeration date Jun 6, 2007
Last updated in NPPES Jul 7, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

124Q00000X Dental Hygienist Dental Providers · License 187 (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 Debra Olsen?
The National Provider Identifier (NPI) for Debra Olsen is 1871796912, a Type 1 (individual) record in the CMS NPPES registry.
Where does Debra Olsen practice?
The practice location on file with NPPES is in Glendale, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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