Quick answers
- Does Rebecca L. Zimmermann accept Medicare assignment?
- Yes. Medicare's clinician data says Rebecca L. Zimmermann 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 Rebecca L. Zimmermann see?
- In 2024, CMS data shows 333 Original Medicare patients and 1,681 services for Rebecca L. Zimmermann. This counts Original Medicare only and measures volume, not quality.
- What is Rebecca L. Zimmermann's NPI number?
- 1669788477. 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 Rebecca L. Zimmermann, 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 | 333 |
|---|---|
| Services billed to Medicare | 1,681 |
| Different services or procedures | 49 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)185 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)166 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)161 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)136 services
- Anticoagulant management of patient taking warfarin (93793)120 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 cholesterol70%
- High blood pressure69%
- Arthritis43%
- Ischemic heart disease27%
- Chronic kidney disease27%
- Atrial fibrillation25%
Hospitals where Rebecca L. Zimmermann works
Medicare's Facility Affiliation Data lists Rebecca L. Zimmermann 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.
- Aurora Lakeland Medical CenterElkhorn, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520102
- Aurora Memorial Hospital BurlingtonBurlington, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520059
- Aurora St Lukes Medical CenterMilwaukee, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520138
Practice locations
Addresses where Rebecca L. Zimmermann is enrolled with Medicare (CMS data updated October 2, 2026).
- 1020 N 12th StMilwaukee, WI 53233 (414) 219‑3056
- 146 E Geneva SqLake Geneva, WI 53147 (262) 249‑5000
- 1550 Hobbs DrDelavan, WI 53115 (262) 740‑4200
- 525 Kenosha St AWalworth, WI 53184 (262) 275‑2101
- W3985 County Rd NnElkhorn, WI 53121 (262) 741‑2000
Group practices
Medicare enrollment lists Rebecca L. Zimmermann as a member of this group (CMS data updated October 2, 2026).
- Aurora Medical Group, Inc.3,813 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Milwaukee
Clinicians with the same Medicare primary specialty in Milwaukee, WI — not a recommendation.
Other clinicians in Aurora Medical Group, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Midwestern University, Chicago College Of Osteopathic Med |
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1669788477 |
| 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