NPPES file of Aug 9, 2026

Susan M. Olszewski, FNP-BC APNP

Nurse Practitioner · Fond Du Lac, WI

Susan M. Olszewski, FNP-BC APNP is a nurse practitioner with a practice address in Fond Du Lac, Wisconsin, and NPI 1568693828, issued on Aug 5, 2009. Check the license (Wisconsin 3781-033, 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
1568693828
Name
Susan M. Olszewski
Credential
FNP-BC APNP
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
3781-033 WI
123624 WI
Self-reported in NPPES; status is on the state search
Practice location
210 Wisconsin American Dr, Fond Du Lac, WI 54937
Phone
(920) 907-7000
Enumerated
Aug 5, 2009
Record last updated
Oct 16, 2025
Medicaid ID
100005404 WI
Medicare enrollment
Enrolled (PECOS I20090925000226); 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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Also registered at 210 Wisconsin American Dr

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

  1. Brianna Anderson, AUDAudiologist1932512522
  2. Theresa Baseley, NPNurse Practitioner1043279805
  3. Jennifer BeattiePhysical Therapist1245152800
  4. Jeremy Bell, DOObstetrics & Gynecology Physician1457339616
  5. Alicia BirschbachPhysical Therapy Assistant1326609306
  6. Krystine Breedlove, ACNPC-AGNurse Practitioner1376146910

Verify Susan M. Olszewski 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 3781-033
    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
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3.8 times the Medicare Part D claims of the average nurse practitioner in 2024

4,223 Medicare Part D claims for 466 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 50 claims were for opioids.

  1. Susan Olszewski4,223
  2. Specialty average1,109

Most prescribed

  1. Atorvastatin Calcium243 claims
  2. Losartan Potassium190 claims
  3. Levothyroxine Sodium174 claims
  4. Amlodipine Besylate152 claims
  5. Lisinopril133 claims
  6. Omeprazole126 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. Aurora Medical Group, Inc.Fond Du Lac, WI

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

Susan M. Olszewski among 3,995 nurse practitioner records in Wisconsin

Susan M. Olszewski, FNP-BC APNP is one of 3,995 nurse practitioner records with a practice address in Wisconsin. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 26% of them.

  • NPI issued2009 · 26% of these records are older, 72% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2009 · median 2017 among the 2,701 with a school on file
  • Record last updated2025 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

60 nurse practitioner records list a practice address in Fond Du Lac

They are 60 of the 1,312 NPPES records with a practice address in Fond Du Lac, and 3,995 nurse practitioner records in Wisconsin.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Theresa Baseley, NPFond Du Lac, WI 549371043279805
  2. Krystine Breedlove, ACNPC-AGFond Du Lac, WI 549371376146910
  3. Rachel Damon, NPFond Du Lac, WI 549371487798070
  4. Amy Gumieny, NPNorth Fond Du Lac, WI 549371386180362
  5. Lisa Liedke, APNPFond Du Lac, WI 549371336783042
  6. Jessica Loehr, NPFond Du Lac, WI 549371841627163
  7. Jeanne Mossberger, APNPFond Du Lac, WI 549371831489343
  8. Nichole Nelson, APNPFond Du Lac, WI 549371013530724

Common questions

What is Susan M. Olszewski, FNP-BC APNP's NPI number?

Susan M. Olszewski, FNP-BC APNP's National Provider Identifier (NPI) is 1568693828, issued on Aug 5, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Susan M. Olszewski, FNP-BC APNP located?

The NPPES record lists a practice address at 210 Wisconsin American Dr, Fond Du Lac, WI, 54937. Phone: (920) 907-7000. Providers update this record themselves, so call before visiting.

How can I verify Susan M. Olszewski, FNP-BC APNP's license?

NPPES lists Wisconsin license number 3781-033, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Susan M. Olszewski, FNP-BC APNP prescribe under Medicare Part D?

In 2024, Susan M. Olszewski, FNP-BC APNP had 4,223 Medicare Part D claims for 466 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.