NPPES file of Aug 9, 2026

Mary J. Dalzell, NP

Adult Health Nurse Practitioner · Fond Du Lac, WI

Mary J. Dalzell, NP is an adult health nurse practitioner with a practice address in Fond Du Lac, Wisconsin, and NPI 1942552658, issued on Oct 4, 2012. Check the license (Wisconsin 5008, 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
1942552658
Name
Mary J. Dalzell
Credential
NP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
5008 WI
Self-reported in NPPES; status is on the state search
Practice location
420 E Division St, Fond Du Lac, WI 54935
Phone
(920) 926-8230
Enumerated
Oct 4, 2012
Record last updated
Apr 23, 2025
Fax
(920) 926-8997
Medicaid ID
1942552658 WI
Medicare enrollment
Enrolled (PECOS I20130124000243); 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.
Download card Updates feed

8 nearest adult health nurse practitioner records → All 398 in Wisconsin → Look up another NPI →

Also registered at 420 E Division St

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

  1. Elizabeth Berenz, FNP-BCFamily Nurse Practitioner1619386885
  2. Melissa Berggren, PA-CPhysician Assistant1639377617
  3. Louann Biddick, NPNurse Practitioner1770566721
  4. Jennifer Bissell, MDFamily Medicine Physician1316146962
  5. Tiffany Boelk, APNPNurse Practitioner1700459690
  6. David Bowman, M.D.Cardiovascular Disease Physician1962492397

Verify Mary J. Dalzell 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 5008    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

4.1 times the Medicare Part D claims of the average adult health nurse practitioner in 2024

5,198 Medicare Part D claims for 696 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Mary Dalzell5,198
  2. Specialty average1,280

Most prescribed

  1. Metoprolol Succinate522 claims
  2. Atorvastatin Calcium513 claims
  3. Furosemide339 claims
  4. Clopidogrel327 claims
  5. Metoprolol Tartrate288 claims
  6. Losartan Potassium282 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: $97.74

3 payments; by number, the most common kind was food and beverage; the largest payer was CVRx, Inc. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary Dalzell$97.74
  2. Specialty average$946.40

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. Agnesian Healthcare IncFond Du Lac, WI

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

Mary J. Dalzell among 398 adult health nurse practitioner records in Wisconsin

Mary J. Dalzell, NP is one of 398 adult health nurse practitioner records with a practice address in Wisconsin. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 52% of them.

  • NPI issued2012 · 52% of these records are older, 41% newer
  • In a Medicare fileYes · 57% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2012 · median 2013 among the 172 with a school on file
  • Record last updated2025 · 69% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in Wisconsin

There are 398 adult health nurse practitioner records in Wisconsin.

All 398 in Wisconsin → Every provider in Fond Du Lac → Adult Health Nurse Practitioner nationwide →

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Jammi Cairns, NPFond Du Lac, WI 549351093836751
  2. Courtney CollienFond Du Lac, WI 549351124443726
  3. Megan Diener, APNPFond Du Lac, WI 549351720413651
  4. Michele Ellefson, DNP, APNPFond Du Lac, WI 549351528209574
  5. Amy Fannin, APNPFond Du Lac, WI 549351093124265
  6. Julie Johnson, NPFond Du Lac, WI 549351184605891
  7. Rachael Kolaske, APNPFond Du Lac, WI 549351609202779
  8. Lisa Michels, APNPFond Du Lac, WI 549351952735516

Common questions

What is Mary J. Dalzell, NP's NPI number?

Mary J. Dalzell, NP's National Provider Identifier (NPI) is 1942552658, issued on Oct 4, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Mary J. Dalzell, NP located?

The NPPES record lists a practice address at 420 E Division St, Fond Du Lac, WI, 54935. Phone: (920) 926-8230. Providers update this record themselves, so call before visiting.

How can I verify Mary J. Dalzell, NP's license?

NPPES lists Wisconsin license number 5008, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Mary J. Dalzell, NP prescribe under Medicare Part D?

In 2024, Mary J. Dalzell, NP had 5,198 Medicare Part D claims for 696 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.