Jeffrey Willis, PA
NPI 1558388520 · Physician Assistant · Mequon, WI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Willis, PA is a Physician Assistant provider in Mequon, WI (NPI 1558388520).
Provider details
- NPI number
- 1558388520
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- 1730 (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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
65 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) |
|---|---|---|
| Fluoroscopic Guidance for Needle Placement77002 | 22 | $21 |
| Aspiration of Fluid From Chest Cavity Using Imaging Guidance32555 | 18 | $84 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 13 | $9 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 12 | $35 |
Typical Medicare-allowed amounts for these services range $9–$84 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$226 across 2 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 (1)
- 707 S University AveBeaver Dam, WI 53916-3027Phone: (920) 887-7181
Registry dates
- Enumerated
- 2006-07-16
- Last updated
- 2025-12-10
- Certified
- 2025-12-10
Frequently asked questions
- What is Jeffrey Willis's NPI number?
- Jeffrey Willis's National Provider Identifier (NPI) is 1558388520, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Willis's specialty?
- Jeffrey Willis is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jeffrey Willis located?
- Jeffrey Willis's practice location on file with NPPES is 10945 N Port Washington Rd Ste 201, Mequon, WI 53092-5078.
- What is Jeffrey Willis's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Willis is (262) 292-3151.
- Does Jeffrey Willis accept Medicare?
- Jeffrey Willis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Willis's NPI active?
- Yes — Jeffrey Willis's NPI (1558388520) is active in the NPPES registry as of the last update on 2025-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.