Quick answers
- Does Katherine Ketterhagen accept Medicare assignment?
- Yes. Medicare's clinician data says Katherine Ketterhagen 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 Katherine Ketterhagen see?
- In 2024, CMS data shows 145 Original Medicare patients and 189 services for Katherine Ketterhagen. This counts Original Medicare only and measures volume, not quality.
- What is Katherine Ketterhagen's NPI number?
- 1356414668. 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 Katherine Ketterhagen, 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 | 145 |
|---|---|
| Services billed to Medicare | 189 |
| Different services or procedures | 28 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Emergency department visit with moderate level of medical decision making (99284)54 services
- Emergency department visit with high level of medical decision making (99285)53 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)18 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)16 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 pressure73%
- High cholesterol73%
- Arthritis41%
- Anxiety37%
- Ischemic heart disease28%
- Depression27%
Hospitals where Katherine Ketterhagen works
Medicare's Facility Affiliation Data lists Katherine Ketterhagen 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.
- Fort Memorial HospitalFort Atkinson, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520071
- Stoughton HospitalStoughton, WI · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 521343
Practice locations
Addresses where Katherine Ketterhagen is enrolled with Medicare (CMS data updated October 2, 2026).
- 4 Burdick StEdgerton, WI 53534 (608) 884‑3441
- 5614 US Hwy 51McFarland, WI 53558 (608) 838‑8242
- 611 Sherman Ave EFort Atkinson, WI 53538 (920) 568‑5475
- 757 E Milwaukee St, Suite CWhitewater, WI 53190 (608) 561‑6740
- 900 Ridge StStoughton, WI 53589 (608) 873‑6611
Group practices
Medicare enrollment lists Katherine Ketterhagen as a member of these groups (CMS data updated October 2, 2026).
- Stoughton Hospital Association66 clinicians in the group
- Swea Fort SC52 clinicians in the group
- Edgerton Hospital and Health Services, Inc43 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Edgerton
Clinicians with the same Medicare primary specialty in Edgerton, WI — not a recommendation.
Other clinicians in Stoughton Hospital Association
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356414668 |
| 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