Quick answers
- Does Justin P. Dux accept Medicare assignment?
- Yes. Medicare's clinician data says Justin P. Dux accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Justin P. Dux see?
- In 2024, CMS data shows 294 Original Medicare patients and 519 services for Justin P. Dux. This counts Original Medicare only and measures volume, not quality.
- What is Justin P. Dux's NPI number?
- 1518209022. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Justin P. Dux, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 294 |
|---|---|
| Services billed to Medicare | 519 |
| Different services or procedures | 78 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Ultrasound of both sides of head and neck blood flow (93880)89 services
- Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)83 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)36 services
- Ultrasound study of arm and leg arteries (93922)29 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)29 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Ischemic heart disease41%
- Chronic kidney disease39%
- Atrial fibrillation33%
Hospitals where Justin P. Dux works
Medicare's Facility Affiliation Data lists Justin P. Dux at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Oconomowoc Memorial HospitalOconomowoc, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520062
- Waukesha Memorial HospitalWaukesha, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520008
Practice locations
Addresses where Justin P. Dux is enrolled with Medicare (CMS data updated October 2, 2026).
- 1111 Delafield St, Suite 209Waukesha, WI 53188 (262) 542‑0444
Group practices
Medicare enrollment lists Justin P. Dux as a member of this group (CMS data updated October 2, 2026).
- Waukesha Surgical Specialists, S.C.18 clinicians in the group
Specialties
Other general surgeons in Waukesha
Clinicians with the same Medicare primary specialty in Waukesha, WI — not a recommendation.
Other clinicians in Waukesha Surgical Specialists, S.C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518209022 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians