Quick answers
- Does Julie M. Vander Werff accept Medicare assignment?
- Yes. Medicare's clinician data says Julie M. Vander Werff 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 Julie M. Vander Werff see?
- In 2024, CMS data shows 148 Original Medicare patients and 5,559 services for Julie M. Vander Werff. This counts Original Medicare only and measures volume, not quality.
- What is Julie M. Vander Werff's NPI number?
- 1568481463. 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 Julie M. Vander Werff, 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 | 148 |
|---|---|
| Services billed to Medicare | 5,559 |
| Different services or procedures | 99 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)162 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)114 services
- Blood test, lipids (cholesterol and triglycerides) (80061)69 services
- Blood test, comprehensive group of blood chemicals (80053)63 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)59 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 pressure52%
- High cholesterol52%
- Arthritis32%
- Diabetes24%
- Chronic kidney disease16%
- Atrial fibrillation14%
Hospitals where Julie M. Vander Werff works
Medicare's Facility Affiliation Data lists Julie M. Vander Werff 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.
- University of WI Hospitals & Clinics AuthorityMadison, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520098
Practice locations
Addresses where Julie M. Vander Werff is enrolled with Medicare (CMS data updated October 2, 2026).
- 3051 Cahill MainFitchburg, WI 53711 (608) 661‑7200
- 5249 E Terrace DrMadison, WI 53718 (608) 222‑9777
- 675 W Washington AveMadison, WI 53703 (608) 257‑9700
- 8202 Excelsior DrMadison, WI 53717 (608) 831‑1766
Group practices
Medicare enrollment lists Julie M. Vander Werff as a member of this group (CMS data updated October 2, 2026).
- Group Health Cooperative of South Central Wisconsin236 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Fitchburg
Clinicians with the same Medicare primary specialty in Fitchburg, WI — not a recommendation.
Other clinicians in Group Health Cooperative of South Central Wisconsin
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1996 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1568481463 |
| 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