NPPES file of Aug 9, 2026

Karl Koivisto, MD

Emergency Medicine Physician · Princeton, MN

Karl Koivisto, MD is an emergency medicine physician with a practice address in Princeton, Minnesota, and NPI 1962931451, issued on Jun 8, 2017. Check the license (Minnesota 67132, as entered in NPPES) on the Minnesota Board of Medical Practice; 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
1962931451
Name
Karl Koivisto
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
67132 MN
13846498-1205 UT
Self-reported in NPPES; status is on the state search
Practice location
911 Northland Dr, Princeton, MN 55371
Phone
(763) 389-1313
Enumerated
Jun 8, 2017
Record last updated
Apr 15, 2025
Medicare enrollment
Enrolled (PECOS I20200806001118); accepts Medicare assignment
Medical or professional school
University Of Minnesota Medical School, 2017
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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Also registered at 911 Northland Dr

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

  1. Marci AlberdingCertified Respiratory Therapist1083753867
  2. Anthony Artisensi-Skime, CESRehabilitation Practitioner1568501492
  3. Jayme Baldwin, RDNRegistered Dietitian1659045110
  4. Alex Basara, M.D.Emergency Medicine Physician1326677253
  5. Cierra Beckerleg, M.S. SLPSpeech-Language Pathologist1831051010
  6. Thomas Blankenship, MDFamily Medicine Physician1487606091

Verify Karl Koivisto in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical Practice
    Search for license 67132
    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
Open the Minnesota 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.

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2% more Medicare Part D claims than the average emergency medicine physician in 2024

230 Medicare Part D claims for 163 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 41 claims were for opioids.

  1. Karl Koivisto230
  2. Specialty average226

Most prescribed

  1. Oxycodone Hcl38 claims
  2. Prednisone35 claims
  3. Cephalexin16 claims
  4. Cefuroxime14 claims
  5. Ondansetron Odt13 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.

Bills Medicare through 3 group practices

  1. Fairview Health ServicesMinneapolis, MN
  2. University OF Minnesota PhysiciansMinneapolis, MN
  3. University OF Utah Adult ServicesSalt Lake City, UT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Karl Koivisto among 1,348 emergency medicine physician records in Minnesota

Karl Koivisto, MD is one of 1,348 emergency medicine physician records with a practice address in Minnesota. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 76% of them.

  • NPI issued2017 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2017 · median 2012 among the 818 with a school on file
  • Record last updated2025 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 emergency medicine physician records list a practice address in Princeton

They are 8 of the 218 NPPES records with a practice address in Princeton, and 1,348 emergency medicine physician records in Minnesota.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Alex Basara, M.D.Princeton, MN 553711326677253
  2. Roseann Ekstrom, M.D.Princeton, MN 553711265687438
  3. Craig Jones, DOPrinceton, MN 553711477073336
  4. Brendan Meyer, MDPrinceton, MN 553711366554727
  5. Breanna Peterson, D.O.Princeton, MN 553711013399112
  6. Brenda Sommerdorf, MDPrinceton, MN 553711457301038
  7. Jake Tarnowski, MDPrinceton, MN 553711922597707
  8. Paul Stahler, MDPrior Lake, MN 553721093782104

Common questions

What is Karl Koivisto, MD's NPI number?

Karl Koivisto, MD's National Provider Identifier (NPI) is 1962931451, issued on Jun 8, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Karl Koivisto, MD located?

The NPPES record lists a practice address at 911 Northland Dr, Princeton, MN, 55371. Phone: (763) 389-1313. Providers update this record themselves, so call before visiting.

How can I verify Karl Koivisto, MD's license?

NPPES lists Minnesota license number 67132, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Karl Koivisto, MD prescribe under Medicare Part D?

In 2024, Karl Koivisto, MD had 230 Medicare Part D claims for 163 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.