Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karissa Louise Olson, OTD, OTR

Occupational Therapist in Ames, IA · enumerated 2023.

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

National Provider Identifier

1902583024

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Registry record

Entity type Individual (Type 1)

Name Karissa Louise Olson

Credential OTD, OTR

Sex Female

Practice address 1915 Philadelphia St, Ames, IA, 50010

Phone (515) 232-7220

Enumeration date Jun 30, 2023

Last updated in NPPES Jun 30, 2023

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 121335 (IA) 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 is the NPI number for Karissa Olson?

The National Provider Identifier (NPI) for Karissa Olson is 1902583024, a Type 1 (individual) record in the CMS NPPES registry.

Where does Karissa Olson practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-30.