NPPES file of Aug 9, 2026

Dianna L. Malkowski, PA

Physician Assistant · Oshkosh, WI

Dianna L. Malkowski, PA is a physician assistant with a practice address in Oshkosh, Wisconsin, and NPI 1811194699, issued on Jun 27, 2007. Check the license (Wisconsin 2154, as entered in NPPES) with the Wisconsin 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
1811194699
Name
Dianna L. Malkowski
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
2154 WI
Self-reported in NPPES; status is on the state search
Practice location
2700 W 9TH Ave Ste 203, Oshkosh, WI 54904
Phone
(920) 738-2000
Enumerated
Jun 27, 2007
Record last updated
Mar 26, 2025
Medicaid ID
41940000 WI
Medicare enrollment
Enrolled (PECOS I20070815000725); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 2700 W 9TH Ave Ste 203

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

  1. Lars Swanson, MDInternal Medicine Physician1457346686

Verify Dianna L. Malkowski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 2154
    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 Wisconsin license search

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7.0 times the Medicare Part D claims of the average physician assistant in 2024

5,817 Medicare Part D claims for 397 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 210 claims were for opioids.

  1. Dianna Malkowski5,817
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium258 claims
  2. Lisinopril219 claims
  3. Omeprazole213 claims
  4. Simvastatin178 claims
  5. Levothyroxine Sodium169 claims
  6. Losartan Potassium164 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.

Industry payments in 2024: $13.36

1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dianna Malkowski$13.36
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Ascension Medical Group-Fox Valley Wisconsin IncNeenah, WI

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

Dianna L. Malkowski among 3,475 physician assistant records in Wisconsin

Dianna L. Malkowski, PA is one of 3,475 physician assistant records with a practice address in Wisconsin. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 24% of them.

  • NPI issued2007 · 24% of these records are older, 72% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2007 · median 2016 among the 2,491 with a school on file
  • Record last updated2025 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

43 physician assistant records list a practice address in Oshkosh

They are 43 of the 1,527 NPPES records with a practice address in Oshkosh, and 3,475 physician assistant records in Wisconsin.

The 8 physician assistant records with the nearest ZIP codes

  1. Matthew Bay, P.A.Oshkosh, WI 549041033359401
  2. Mark Evans, PA-COshkosh, WI 549041649205105
  3. Daniel Hafner, PAOshkosh, WI 549041578563946
  4. Marc Jennings, PA-COshkosh, WI 549041144212994
  5. Stephen Kennebeck, PA-COshkosh, WI 549041538169214
  6. Marina Mishin, PA-COshkosh, WI 549041205845351
  7. Sherri Olson, PAOshkosh, WI 549041609858471
  8. Ruthann PeckOshkosh, WI 549041770746067

Common questions

What is Dianna L. Malkowski, PA's NPI number?

Dianna L. Malkowski, PA's National Provider Identifier (NPI) is 1811194699, issued on Jun 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Dianna L. Malkowski, PA located?

The NPPES record lists a practice address at 2700 W 9TH Ave Ste 203, Oshkosh, WI, 54904. Phone: (920) 738-2000. Providers update this record themselves, so call before visiting.

How can I verify Dianna L. Malkowski, PA's license?

NPPES lists Wisconsin license number 2154, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Dianna L. Malkowski, PA prescribe under Medicare Part D?

In 2024, Dianna L. Malkowski, PA had 5,817 Medicare Part D claims for 397 beneficiaries; the average among physician assistant prescribers was 830. 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.