Mary Dalzell, NP
NPI 1942552658 · Adult Health Nurse Practitioner · Fond Du Lac, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Dalzell, NP is a Adult Health Nurse Practitioner provider in Fond Du Lac, WI (NPI 1942552658).
Provider details
- NPI number
- 1942552658
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 5008 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
375 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 171 | $52 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 88 | $75 |
| Remote Monitoring of Pulmonary Artery Pressure Sensor, Up to 30 Days93264 | 66 | $27 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 50 | $110 |
Typical Medicare-allowed amounts for these services range $27–$110 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 522 | 170 |
| Atorvastatin Calcium | 513 | 159 |
| Furosemide | 339 | 100 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 327 | 107 |
| Metoprolol Tartrate | 288 | 92 |
| Losartan Potassium | 282 | 94 |
| Apixaban |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$98 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (3)
- 1211 Fish Hatchery RdMadison, WI 53715-1909Phone: (608) 252-8000Fax: (608) 410-2905
- 9200 W Wisconsin AveDivision of CardiologyMilwaukee, WI 53226-3522Phone: (414) 955-6777Fax: (414) 955-6203
- 2009 5th StMonroe, WI 53566-1546Phone: (608) 324-2000
Registry dates
- Enumerated
- 2012-10-04
- Last updated
- 2025-04-23
- Certified
- 2025-04-23
Frequently asked questions
- What is Mary Dalzell's NPI number?
- Mary Dalzell's National Provider Identifier (NPI) is 1942552658, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Dalzell's specialty?
- Mary Dalzell is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Dalzell located?
- Mary Dalzell's practice location on file with NPPES is 420 E Division St, Fond Du Lac, WI 54935-4560.
- What is Mary Dalzell's phone number?
- The practice phone number listed in the NPPES registry for Mary Dalzell is (920) 926-8230.
- Does Mary Dalzell accept Medicare?
- Mary Dalzell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Dalzell's NPI active?
- Yes — Mary Dalzell's NPI (1942552658) is active in the NPPES registry as of the last update on 2025-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.