NPPES file of Aug 9, 2026

Bret N. Pasiuk, M.D.

Nephrology Physician · Fond Du Lac, WI

Bret N. Pasiuk, M.D. is a nephrology physician with a practice address in Fond Du Lac, Wisconsin, and NPI 1447242490, issued on Aug 16, 2005. Check the license (Wisconsin 61078, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1447242490
Name
Bret N. Pasiuk
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
61078 WI
Self-reported in NPPES; status is on the state search
Practice location
305 Camelot Drive, Fond Du Lac, WI 54935
Phone
(920) 923-2333
Enumerated
Aug 16, 2005
Record last updated
Oct 26, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(920) 923-2331
Medicaid ID
414303500 MD
Medicare enrollment
Enrolled (PECOS I20131023000766); accepts 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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Verify Bret N. Pasiuk in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 61078    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 Wisconsin license search

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About as many Medicare Part D claims as the average nephrology physician in 2024

1,462 Medicare Part D claims for 328 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 13 claims were for opioids.

  1. Bret Pasiuk1,462
  2. Specialty average1,465

Most prescribed

  1. Losartan Potassium357 claims
  2. Lisinopril114 claims
  3. Furosemide106 claims
  4. Amlodipine Besylate103 claims
  5. Carvedilol70 claims
  6. Potassium Chloride61 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 one group practice

  1. Agnesian Healthcare IncWaupun, WI

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

Nephrology Physician providers in Wisconsin

There are 207 nephrology physician records in Wisconsin.

All 207 in Wisconsin → Every provider in Fond Du Lac →

Other nephrology physician records in Wisconsin

  1. Pablo Abrego, MDWausau, WI1689774317
  2. Uzoamaka Achufusi, MBBSFitchburg, WI1154558773
  3. Christopher Adams, MDLa Crosse, WI1760521769
  4. Venkata Adavikolanu, MDGreen Bay, WI1568804078
  5. Omer Afzal, M.D.Waukesha, WI1952393944
  6. Osaid Ahmad, MDNeenah, WI1689618589
  7. Edward Ahrens, M.D.Madison, WI1225119522
  8. Manohar Ahuja, M.D.Milwaukee, WI1467426064
  9. Wadad Ailabouni, MDMarshfield, WI1811196355
  10. Adedamola AkinsikuMilwaukee, WI1619715760

Common questions

What is Bret N. Pasiuk, M.D.'s NPI number?

Bret N. Pasiuk, M.D.'s National Provider Identifier (NPI) is 1447242490, issued on Aug 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Bret N. Pasiuk, M.D. located?

The NPPES record lists a practice address at 305 Camelot Drive, Fond Du Lac, WI, 54935. Phone: (920) 923-2333. Providers update this record themselves, so call before visiting.

How can I verify Bret N. Pasiuk, M.D.'s license?

NPPES lists Wisconsin license number 61078, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Bret N. Pasiuk, M.D. prescribe under Medicare Part D?

In 2024, Bret N. Pasiuk, M.D. had 1,462 Medicare Part D claims for 328 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.

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.