Quick answers
- Does Hans R. Wagenaar accept Medicare assignment?
- Yes. Medicare's clinician data says Hans R. Wagenaar 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 Hans R. Wagenaar see?
- In 2024, CMS data shows 932 Original Medicare patients and 9,592 services for Hans R. Wagenaar. This counts Original Medicare only and measures volume, not quality.
- What is Hans R. Wagenaar's NPI number?
- 1811955073. 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 Hans R. Wagenaar, 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 | 932 |
|---|---|
| Services billed to Medicare | 9,592 |
| Different services or procedures | 63 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)4,300 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)895 services
- Manual urinalysis test with examination using microscope, automated (81001)594 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)561 services
- Bcg live intravesical instillation, 1 mg (J9030)475 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%
- Arthritis43%
- Ischemic heart disease38%
- Diabetes32%
- Chronic kidney disease27%
Hospitals where Hans R. Wagenaar works
Medicare's Facility Affiliation Data lists Hans R. Wagenaar 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.
- Avera Marshall Regional Medical CenterMarshall, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241359
- Avera McKennan Hospital & University Health CenterSioux Falls, SD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 430016
- Avera St LukesAberdeen, SD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 430014
- Sanford Usd Medical CenterSioux Falls, SD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 430027
- Sioux Falls Specialty HospitalSioux Falls, SD · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 430090
Practice locations
Addresses where Hans R. Wagenaar is enrolled with Medicare (CMS data updated October 2, 2026).
- 201 W 69th StSioux Falls, SD 57108 (605) 336‑0635
- 910 E 20th StSioux Falls, SD 57105 (605) 334‑6730
Group practices
Medicare enrollment lists Hans R. Wagenaar as a member of this group (CMS data updated October 2, 2026).
- Urology Specialists Chartered47 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Sioux Falls
Clinicians with the same Medicare primary specialty in Sioux Falls, SD — not a recommendation.
Other clinicians in Urology Specialists Chartered
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2000 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811955073 |
| 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