Dr. Bret N. Pasiuk, MD
- Medicare services, 2024
- 797
- Medicare patients, 2024
- 323
- Part D claims, 2024
- 1,462
- Hospital affiliations
- 3
- Industry payments
- $96
- Practice address
- 420 E Division St, Fond Du Lac, WI 54935
- Practice phone
- Call (920) 923-7400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
SSM Health Fond Du LAC Regional Clinic
Fond Du Lac, Wisconsin
Find Dr. Pasiuk's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Bret N. Pasiuk is a nephrologist in Fond Du Lac, Wisconsin
Dr. Pasiuk practices at SSM Health Fond Du LAC Regional Clinic in Fond Du Lac, Wisconsin.
Dr. Pasiuk's NPI, 1447242490, was assigned on August 16, 2005. Dr. Pasiuk holds Wisconsin license 61078.
- NPI
- 1447242490NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608945639
- NPI enumeration date
- August 16, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (920) 923-7400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Bret N. Pasiuk practices at SSM Health Fond Du LAC Regional Clinic in Fond Du Lac, Wisconsin
Dr. Pasiuk's primary practice is SSM Health Fond Du LAC Regional Clinic, at 420 E Division St, Fond Du Lac, WI 54935 in Fond Du Lac County. The practice phone is (920) 923-7400.
- SSM Health Fond Du LAC Regional Clinic420 E Division St, Fond Du Lac, WI 54935 · Fond Du Lac CountyPhone(920) 923-7400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Bret N. Pasiuk is affiliated with 7 sites of care and 1 medical group
Dr. Pasiuk's primary practice is SSM Health Fond Du LAC Regional Clinic in Fond Du Lac, Wisconsin. Dr. Pasiuk is also affiliated with SSM Health St. Agnes Hospital - Fond du Lac. The medical group on file is SSM Health St. Agnes Hospital - Fond du Lac. Dmand AI also links Dr. Pasiuk to 2 more hospitals, 2 dialysis centers and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Bret N. Pasiuk's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pasiuk practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| SSM Health Fond Du LAC Regional Clinic | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Bret N. Pasiuk is one of 168 nephrologists in Wisconsin
Nephrology is Dr. Pasiuk's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Pasiuk is licensed in Wisconsin.
Specialties and state licenses
- Nephrology, WisconsinPrimary
Nephrologists near Dr. Pasiuk
Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Bret N. Pasiuk billed Medicare for 797 services in 2024
CMS data shows 797 Medicare services from Dr. Pasiuk across 5 procedure codes in 2024, for 323 Medicare patients. Medicare paid $84,239 for them.
Dr. Pasiuk's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4452024: 37915%
- Tests and treatments
- 2023: 3462024: 21338%
- Other services
- 2023: 02024: 205
Where Dr. Pasiuk's Medicare services took place, 2024
- In an office46058%
- In a facility33742%
Dr. Pasiuk compared with the Wisconsin median for nephrologists, 2024
- Dr. Pasiuk
- Wisconsin median
- Medicare services
- 797vs 67718% above
- Medicare patients
- 323vs 23637% above
- Part D claims
- 1,322vs 6512.0 times
Medians across 167 nephrologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Pasiuk's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Pasiuk?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Pasiuk and other nephrologists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Bret N. Pasiuk treated 323 Medicare patients in 2024, average age 75
CMS counts 323 Medicare patients who saw Dr. Pasiuk in 2024. The largest group is 75 to 84, with 134 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 15% are also on Medicaid. Their average risk score is 2.83, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Pasiuk's median patient age at 76, with 48% women.
Dr. Pasiuk's Medicare patients by age, 2024
Dr. Pasiuk's Medicare patients by sex, 2024
- Women15147%
- Men17253%
Chronic conditions among Dr. Pasiuk's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes60%
- Heart failure50%
- Ischemic heart disease42%
- Arthritis40%
- Atrial fibrillation33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Pasiuk's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Bret N. Pasiuk wrote 1,462 Medicare Part D claims in 2024
In 2024, Dr. Pasiuk wrote 1,462 Medicare Part D claims for 328 patients. 96% of them were for generic drugs. CMS names the drug for 1,322 of them, across 25 drugs with 11 or more claims each, at $59,300 in total drug cost. In 2023, CMS named 1,276 claims across 22 drugs.
Dr. Pasiuk's Part D claims by kind of drug, 2024
- Generic1,404 claims96%
- Brand-name58 claims4%
Dr. Pasiuk's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Pasiuk's Part D claims, 2024
- Opioids1%13 of 1,462 claims
- Antibiotics1%18 of 1,462 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,2762024: 1,3224%
Drugs named by CMS: 25 in 2024, 22 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Bret N. Pasiuk takes part in Medicare
Dr. Pasiuk accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Bret N. Pasiuk received $96 in industry payments in 2021
CMS Open Payments shows 1 general payment to Dr. Pasiuk from 1 drug or device company in 2021. Education make up the largest share, 100% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $96.
Companies that paid Dr. Pasiuk the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Bret N. Pasiuk's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Bret N. Pasiuk
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Bret N. Pasiuk's NPI number?
Dr. Bret N. Pasiuk's NPI number is 1447242490. It was assigned on August 16, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Bret N. Pasiuk?
Dr. Bret N. Pasiuk is a nephrologist in Fond Du Lac, Wisconsin. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Bret N. Pasiuk practice?
Dr. Pasiuk practices at 420 E Division St, Fond Du Lac, WI 54935. Dr. Pasiuk's primary practice is SSM Health Fond Du LAC Regional Clinic in Fond Du Lac, Wisconsin. Dmand AI also links Dr. Pasiuk to 2 hospitals, 2 dialysis centers and 1 group practice or clinic.
What is Dr. Bret N. Pasiuk's office phone number?
The practice phone on file for Dr. Pasiuk is (920) 923-7400.
What is Dr. Bret N. Pasiuk's medical license number?
Dr. Pasiuk holds Wisconsin license 61078.
Which hospitals is Dr. Bret N. Pasiuk affiliated with?
Dr. Pasiuk is affiliated with SSM Health St. Agnes Hospital - Fond du Lac. Dmand AI links Dr. Pasiuk to 2 more hospitals.
What medical group is Dr. Bret N. Pasiuk part of?
Dr. Pasiuk is linked to SSM Health St. Agnes Hospital - Fond du Lac.
Does Dr. Bret N. Pasiuk accept Medicare?
Yes. CMS data shows Dr. Pasiuk billed Medicare for 797 services in 2024, and Dr. Pasiuk accepts Medicare assignment.
How many Medicare patients does Dr. Bret N. Pasiuk see?
CMS counts 323 Medicare patients who saw Dr. Pasiuk in 2024, with an average age of 75.
What services does Dr. Bret N. Pasiuk bill to Medicare?
In 2024, Dr. Pasiuk's most billed Medicare services were office visit, established patient (99214), dialysis (90960) and medicare service (G2211).
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What drugs does Dr. Bret N. Pasiuk prescribe most?
In 2024 Medicare Part D data, Dr. Pasiuk's most prescribed drugs by claims were Losartan Potassium, Lisinopril and Furosemide.
Has Dr. Bret N. Pasiuk received payments from drug or device companies?
CMS Open Payments shows $96 in general payments to Dr. Pasiuk from 1 company from 2021 to 2021. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Bret N. Pasiuk been practicing?
Dr. Pasiuk graduated from medical school in 2000, 26 years ago.
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