Quick answers
- Does Karen A. Duffy accept Medicare assignment?
- Yes. Medicare's clinician data says Karen A. Duffy 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 Karen A. Duffy see?
- In 2024, CMS data shows 73 Original Medicare patients and 355 services for Karen A. Duffy. This counts Original Medicare only and measures volume, not quality.
- What is Karen A. Duffy's NPI number?
- 1588294581. 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 Karen A. Duffy, 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 | 73 |
|---|---|
| Services billed to Medicare | 355 |
| Different services or procedures | 7 |
| Participating Medicare provider | Yes |
| Average age of these patients | 85 |
Most frequent services
- Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)293 services
- Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)15 services
- Residence visit for new patient with high level of medical decision making, per day, if using time, at least 75 minutes (99345)13 services
- Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)11 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 cholesterol64%
- Alzheimer's disease or dementia63%
- Arthritis58%
- Anxiety49%
- Depression42%
Hospitals where Karen A. Duffy works
Medicare's Facility Affiliation Data lists Karen A. Duffy 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 Virginia Medical CenterCharlottesville, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490009
- UVA Health Culpeper Medical CenterCulpeper, VA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 490019
Practice locations
Addresses where Karen A. Duffy is enrolled with Medicare (CMS data updated October 2, 2026).
- 1221 Lee StCharlottesville, VA 22908 (434) 924‑2500
Group practices
Medicare enrollment lists Karen A. Duffy as a member of this group (CMS data updated October 2, 2026).
- University of Virginia Physicians Group1,717 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Charlottesville
Clinicians with the same Medicare primary specialty in Charlottesville, VA — not a recommendation.
Other clinicians in University of Virginia Physicians Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2019 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1588294581 |
| 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