Marybeth Wisniewski, APRN-BC, FNP
NPI 1952598377 · Nurse Practitioner · Greenfield, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marybeth Wisniewski, APRN-BC, FNP is a Nurse Practitioner provider in Greenfield, WI (NPI 1952598377).
Provider details
- NPI number
- 1952598377
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN-BC, FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 3292 (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 tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
213 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 84 | $72 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 45 | $45 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 43 | $95 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 41 | $96 |
Typical Medicare-allowed amounts for these services range $45–$96 (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 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 91 | 30 |
| Atorvastatin Calcium | 90 | 40 |
| Lisinopril | 64 | 25 |
| Losartan Potassium | 50 | 25 |
| Amlodipine Besylate | 47 | 17 |
| Rosuvastatin Calcium | 45 | 15 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-09-30
- Last updated
- 2025-04-29
- Certified
- 2025-04-29
Frequently asked questions
- What is Marybeth Wisniewski's NPI number?
- Marybeth Wisniewski's National Provider Identifier (NPI) is 1952598377, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marybeth Wisniewski's specialty?
- Marybeth Wisniewski is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marybeth Wisniewski located?
- Marybeth Wisniewski's practice location on file with NPPES is 6901 W Edgerton Ave, Greenfield, WI 53220-4420.
- What is Marybeth Wisniewski's phone number?
- The practice phone number listed in the NPPES registry for Marybeth Wisniewski is (414) 421-8400.
- Does Marybeth Wisniewski accept Medicare?
- Marybeth Wisniewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marybeth Wisniewski's NPI active?
- Yes — Marybeth Wisniewski's NPI (1952598377) is active in the NPPES registry as of the last update on 2025-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.