NPPES file of Aug 9, 2026

Karissa Louise Olson, OTD, OTR

Occupational Therapist · Ames, IA

Karissa Louise Olson, OTD, OTR is an occupational therapist with a practice address in Ames, Iowa, and NPI 1902583024, issued on Jun 30, 2023. Check the license (Iowa 121335, as entered in NPPES) with the Iowa board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1902583024
Name
Karissa Louise Olson
Credential
OTD, OTR
Primary taxonomy
Occupational Therapist 225X00000X
License number
121335 IA
Self-reported in NPPES; status is on the state search
Practice location
1915 Philadelphia St, Ames, IA 50010
Phone
(515) 232-7220
Enumerated
Jun 30, 2023
Record last updated
Jun 30, 2023
Medicare enrollment
Enrolled (PECOS I20250917000996); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest occupational therapist records → All 1,115 in Iowa → Look up another NPI →

Also registered at 1915 Philadelphia St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Carol Boeke, MS, CCC-SLPSpeech-Language Pathologist1124248695
  2. Molly Boell, OTOccupational Therapist1629615877
  3. Emily CaseOccupational Therapist1487322061
  4. Lauren Cummings, M.S. CF-SLPSpeech-Language Pathologist1629815956
  5. Amy Davis, OTD, OTR/LOccupational Therapist1013686948
  6. Chloe DavisSpeech-Language Pathologist1356277263

Verify Karissa Louise Olson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Iowa board licenses this profession
    Search for license 121335    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Iowa license search

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Karissa Louise Olson among 1,115 occupational therapist records in Iowa

Karissa Louise Olson, OTD, OTR is one of 1,115 occupational therapist records with a practice address in Iowa. 18% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2023, is newer than 77% of them.

  • NPI issued2023 · 77% of these records are older, 18% newer
  • In a Medicare fileNo · 18% of these records are
  • In the CMS Doctors and Clinicians fileYes · 20% of these records are
  • Graduated2023 · median 2018 among the 225 with a school on file
  • Record last updated2023 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225X00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 occupational therapist records list a practice address in Ames

They are 31 of the 1,249 NPPES records with a practice address in Ames, and 1,115 occupational therapist records in Iowa. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,115 in Iowa → Every provider in Ames → Occupational Therapist nationwide →

The 8 occupational therapist records with the nearest ZIP codes

  1. Molly Boell, OTAmes, IA 500101629615877
  2. Emily CaseAmes, IA 500101487322061
  3. Amy Davis, OTD, OTR/LAmes, IA 500101013686948
  4. Laurel Davis, OTR/LAmes, IA 500101518616325
  5. Melissa Ghormley, OTR/LAmes, IA 500101063961506
  6. Andrew GrinerAmes, IA 500101386370955
  7. Amy Hock, OTRLAmes, IA 500101942370473
  8. Katelyn Holbrook, OTDAmes, IA 500101346733763

Common questions

What is Karissa Louise Olson, OTD, OTR's NPI number?

Karissa Louise Olson, OTD, OTR's National Provider Identifier (NPI) is 1902583024, issued on Jun 30, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Karissa Louise Olson, OTD, OTR located?

The NPPES record lists a practice address at 1915 Philadelphia St, Ames, IA, 50010. Phone: (515) 232-7220. Providers update this record themselves, so call before visiting.

How can I verify Karissa Louise Olson, OTD, OTR's license?

NPPES lists Iowa license number 121335, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.