Quick answers
- Does Pamela S. Mahaffey accept Medicare assignment?
- Yes. Medicare's clinician data says Pamela S. Mahaffey 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 Pamela S. Mahaffey see?
- In 2024, CMS data shows 97 Original Medicare patients and 355 services for Pamela S. Mahaffey. This counts Original Medicare only and measures volume, not quality.
- What is Pamela S. Mahaffey's NPI number?
- 1124436118. 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 Pamela S. Mahaffey, 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 | 97 |
|---|---|
| Services billed to Medicare | 355 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)172 services
- Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)71 services
- Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)33 services
- Nursing facility discharge management, more than 30 minutes (99316)24 services
- Prolonged nursing facility evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by the physician or qualifi (G0317)13 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 cholesterol69%
- Depression55%
- Arthritis48%
- Anxiety47%
- Alzheimer's disease or dementia44%
Hospitals where Pamela S. Mahaffey works
Medicare's Facility Affiliation Data lists Pamela S. Mahaffey 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.
- SSM Health St Mary's Hospital - MadisonMadison, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520083
- Stoughton HospitalStoughton, WI · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 521343
Practice locations
Addresses where Pamela S. Mahaffey is enrolled with Medicare (CMS data updated October 2, 2026).
- 3200 E Racine StJanesville, WI 53546 (608) 371‑8000
Group practices
Medicare enrollment lists Pamela S. Mahaffey as a member of this group (CMS data updated October 2, 2026).
- Dean Health Systems Inc1,159 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Janesville
Clinicians with the same Medicare primary specialty in Janesville, WI — not a recommendation.
Other clinicians in Dean Health Systems Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2014 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124436118 |
| 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