NPPES file of Aug 9, 2026

Linda S. Koskiniemi, APRN, CNP

Gerontology Nurse Practitioner · Duluth, MN

Linda S. Koskiniemi, APRN, CNP is a gerontology nurse practitioner with a practice address in Duluth, Minnesota, and NPI 1689235244, issued on Jun 25, 2019. Check the license (Minnesota 6679, as entered in NPPES) with the Minnesota board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689235244
Name
Linda S. Koskiniemi
Credential
APRN, CNP
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
6679 MN
Self-reported in NPPES; status is on the state search
Practice location
400 E 3RD St, Duluth, MN 55805
Phone
(218) 786-8364
Enumerated
Jun 25, 2019
Record last updated
Apr 10, 2020 (not updated in 6 years: call before relying on the address or phone)
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 400 E 3RD St

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

  1. Peter Aas, MDHospitalist Physician1063455848
  2. Amina Adil, MDCardiovascular Disease Physician1336482314
  3. Rahul Aggarwal, M.D.Pediatric Critical Care Medicine Physician1336198332
  4. Olubisi Akinseloyin, MDHospitalist Physician1619309010
  5. Glenn Albin, M.DCardiovascular Disease Physician1902851116
  6. David AlexanderDiagnostic Radiology Physician1932135936

Verify Linda S. Koskiniemi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Minnesota board licenses this profession
    Search for license 6679
    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 Minnesota license search

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96% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024

57 Medicare Part D claims for 24 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D.

  1. Linda Koskiniemi57
  2. Specialty average1,369

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.

Linda S. Koskiniemi among 363 gerontology nurse practitioner records in Minnesota

Linda S. Koskiniemi, APRN, CNP is one of 363 gerontology nurse practitioner records with a practice address in Minnesota. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 68% of them.

  • NPI issued2019 · 68% of these records are older, 26% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2020 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gerontology Nurse Practitioner providers in Minnesota

There are 363 gerontology nurse practitioner records in Minnesota.

The 8 gerontology nurse practitioner records with the nearest ZIP codes

  1. Carin ElingDuluth, MN 558051346297959
  2. Sara McCumberDuluth, MN 558051619918406
  3. Siobhan McMahon, RN NPDuluth, MN 558051932133147
  4. Stephanie Walters, APRN, CNPDuluth, MN 558051972916377
  5. Lindsay Wenzel, CNPDuluth, MN 558051598178188
  6. Veronica Carson, GNP-BGHermantown, MN 558111366751059
  7. Rosetta Villeneuve, NPGrand Rapids, MN 557441952388506
  8. Kristen Jaster, APRN, CNPCarlton, MN 557181770859605

Common questions

What is Linda S. Koskiniemi, APRN, CNP's NPI number?

Linda S. Koskiniemi, APRN, CNP's National Provider Identifier (NPI) is 1689235244, issued on Jun 25, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Linda S. Koskiniemi, APRN, CNP located?

The NPPES record lists a practice address at 400 E 3RD St, Duluth, MN, 55805. Phone: (218) 786-8364. Providers update this record themselves, so call before visiting.

How can I verify Linda S. Koskiniemi, APRN, CNP's license?

NPPES lists Minnesota license number 6679, as entered by the provider. Search the Minnesota board that licenses this profession; the NPPES record confirms identity only.

How much does Linda S. Koskiniemi, APRN, CNP prescribe under Medicare Part D?

In 2024, Linda S. Koskiniemi, APRN, CNP had 57 Medicare Part D claims for 24 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

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.