Joseph Mayefski, DNP
NPI 1992489843 · Family Nurse Practitioner · Neenah, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Mayefski, DNP is a Family Nurse Practitioner provider in Neenah, WI (NPI 1992489843).
Provider details
- NPI number
- 1992489843
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP
- Sex
- Male
- Sole proprietor
- No
- License
- 14078-33 (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 tenure28% of score
3 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
13 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 13 | $166 |
Typical Medicare-allowed amounts for these services range $166–$166 (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.
Practice location
Mailing address
Additional practice locations (1)
- 1818 N Meade StAppleton, WI 54911-3454Phone: (920) 729-3100
Registry dates
- Enumerated
- 2023-06-12
- Last updated
- 2023-06-12
- Certified
- 2023-05-31
Frequently asked questions
- What is Joseph Mayefski's NPI number?
- Joseph Mayefski's National Provider Identifier (NPI) is 1992489843, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Mayefski's specialty?
- Joseph Mayefski is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joseph Mayefski located?
- Joseph Mayefski's practice location on file with NPPES is 130 2nd St, Neenah, WI 54956-2883.
- What is Joseph Mayefski's phone number?
- The practice phone number listed in the NPPES registry for Joseph Mayefski is (920) 379-7497.
- Does Joseph Mayefski accept Medicare?
- Joseph Mayefski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Mayefski's NPI active?
- Yes — Joseph Mayefski's NPI (1992489843) is active in the NPPES registry as of the last update on 2023-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.