Registry data as of Aug 27, 2026

Katherine Olson, PHARMD

Pharmacist · Mount Pleasant, IA

Katherine Olson, PHARMD is a pharmacist with a practice address in Mount Pleasant, Iowa, and NPI 1457878811, issued on Aug 26, 2017. Check the license (Iowa 23091, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1457878811
Name
Katherine Olson
Credential
PHARMD
Primary taxonomy
Pharmacist 183500000X
License number
23091 IA
Self-reported in NPPES; status is on the state search
Practice location
1045 N Grand Ave, Mount Pleasant, IA 52641
Phone
(319) 385-8600
Enumerated
Aug 26, 2017
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1045 N Grand Ave

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

  1. Dawn DohlerPharmacist1295391761
  2. Natalie Madison, PHARMDPharmacist1164782918
  3. Darin Meinen, PHARMDPharmacist1588218168

Verify Katherine 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 23091
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

25% more Medicare Part D claims than the average pharmacist in 2024

159 Medicare Part D claims for 128 beneficiaries, against an average of 127 among the 28,933 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.

  1. Katherine Olson159
  2. Specialty average127

Most prescribed

  1. Arexvy52 claims
  2. Shingrix51 claims
  3. Boostrix Tdap25 claims
  4. Abrysvo20 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

8 pharmacist records list a Mount Pleasant practice address

They are 8 of the 55 NPPES records with a Mount Pleasant practice address, and 3,185 pharmacist records in Iowa.

Other pharmacist records in Iowa

  1. John Aagesen, RPHAmes, IA1851510887
  2. Angela Aarhus, PHARMDDes Moines, IA1639588510
  3. Mohamed AbbasDavenport, IA1619786928
  4. Tammy Abbas, RPHGarner, IA1982812442
  5. Mary Jo Abbott, RPHIowa City, IA1841325875
  6. Sherry Abbott, RPHBoone, IA1851257125
  7. Ahmed AbdelgadirIowa City, IA1033713896
  8. Salma AbdelrahmanIowa City, IA1558143966
  9. Amanda Abdulbaki, PHARMDDes Moines, IA1730720830
  10. Marla Aboujawdeh, PHARM.D.Mount Vernon, IA1164651147

Common questions

What is Katherine Olson, PHARMD's NPI number?

Katherine Olson, PHARMD's National Provider Identifier (NPI) is 1457878811, issued on Aug 26, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Olson, PHARMD located?

The NPPES record lists a practice address at 1045 N Grand Ave, Mount Pleasant, IA, 52641. Phone: (319) 385-8600. Providers update this record themselves, so call before visiting.

How can I verify Katherine Olson, PHARMD's license?

NPPES lists Iowa license number 23091, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.

How much does Katherine Olson, PHARMD prescribe under Medicare Part D?

In 2024, Katherine Olson, PHARMD had 159 Medicare Part D claims for 128 beneficiaries; the average among pharmacist prescribers was 127. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.