Holly Maciejewski, APNP
NPI 1679950513 · Family Nurse Practitioner · Waukesha, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Holly Maciejewski, APNP is a Family Nurse Practitioner provider in Waukesha, WI (NPI 1679950513).
Provider details
- NPI number
- 1679950513
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 6342-33 (WI)
Specialties & taxonomies
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
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
225 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 134 | $102 |
| Programming of Dual Lead Pacemaker System93280 | 55 | $29 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 21 | $72 |
| Programming of Dual Lead Implantable Defibrillator System93283 | 15 | $44 |
Typical Medicare-allowed amounts for these services range $29–$102 (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 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 158 | 42 |
| Metoprolol Succinate | 126 | 44 |
| Amiodarone Hcl | 74 | 30 |
| Ranolazinebrand: Ranolazine Er | 66 | 29 |
| Flecainide Acetate | 55 | 22 |
| Diltiazem Hclbrand: Diltiazem 24hr Er (cd) | 55 | 18 |
| Dofetilide | 51 | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,139 across 12 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
Registry dates
- Enumerated
- 2015-04-29
- Last updated
- 2015-04-29
Frequently asked questions
- What is Holly Maciejewski's NPI number?
- Holly Maciejewski's National Provider Identifier (NPI) is 1679950513, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Holly Maciejewski's specialty?
- Holly Maciejewski is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Holly Maciejewski located?
- Holly Maciejewski's practice location on file with NPPES is 1111 Delafield St, Waukesha, WI 53188-3417.
- What is Holly Maciejewski's phone number?
- The practice phone number listed in the NPPES registry for Holly Maciejewski is (262) 542-0074.
- Does Holly Maciejewski accept Medicare?
- Holly Maciejewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Holly Maciejewski's NPI active?
- Yes — Holly Maciejewski's NPI (1679950513) is active in the NPPES registry as of the last update on 2015-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.