KARISSA LOUISE OLSON OTD, OTR
NPI 1902583024
Occupational Therapist in Ames, IA
About Karissa Louise Olson Otd, Otr NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KARISSA LOUISE OLSON OTD, OTR (NPI 1902583024) is an individual occupational therapist in Ames, Iowa, licensed in Iowa (121335) and active in the NPI registry since June 2023.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Karissa Louise Olson Otd, Otr is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Karissa Olson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Ankeny, IA 50023
- Reassigned Medicare billing, Iowa enrollment
- 72 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
AMES, IA 50010
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Karissa Olson's NPI number?
The NPI number for Karissa Olson is 1902583024. It was assigned to this individual provider in the NPPES registry on June 30, 2023.
Where is Karissa Olson located?
Karissa Olson practices at 1915 Philadelphia St, Ames, IA 50010. The listed phone number is (515) 232-7220.
What is Karissa Olson's specialty?
The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.
Is Karissa Olson enrolled in Medicare?
Yes. Karissa Olson is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Karissa Olson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karissa Olson reassigns Medicare benefits to Younker Rehabilitation Therapy Services, LLC (Ankeny, IA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karissa Olson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karissa Olson accept?
Health plans from Oscar Insurance Company and Wellmark Health Plan of Iowa, Inc. list Karissa Olson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Karissa Olson was last updated on June 30, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.