Karen Duffy
NPI 1588294581 · Acute Care Nurse Practitioner · Charlottesville, VA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Duffy is a Acute Care Nurse Practitioner provider in Charlottesville, VA (NPI 1588294581).
Provider details
- NPI number
- 1588294581
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 0024178327 (VA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
332 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 293 | $152 |
| 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 andG0180 | 15 | $44 |
| Residence Visit for New Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 75 Minutes99345 | 13 | $165 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 11 | $104 |
Typical Medicare-allowed amounts for these services range $44–$165 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 54 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 92 | 26 |
| Apixabanbrand: Eliquis | 91 | 27 |
| Amlodipine Besylate | 83 | 25 |
| Atorvastatin Calcium | 61 | 21 |
| Metoprolol Succinate | 54 | 21 |
| Sertraline Hcl | 49 | 14 |
| Albuterol Sulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$25 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1215 Lee StCharlottesville, VA 22908-5801Phone: (434) 924-0211
Registry dates
- Enumerated
- 2020-01-19
- Last updated
- 2023-08-09
- Certified
- 2023-08-09
Frequently asked questions
- What is Karen Duffy's NPI number?
- Karen Duffy's National Provider Identifier (NPI) is 1588294581, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Duffy's specialty?
- Karen Duffy is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Duffy located?
- Karen Duffy's practice location on file with NPPES is 1221 Lee St, Charlottesville, VA 22908-5801.
- What is Karen Duffy's phone number?
- The practice phone number listed in the NPPES registry for Karen Duffy is (434) 924-2706.
- Does Karen Duffy accept Medicare?
- Karen Duffy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Duffy's NPI active?
- Yes — Karen Duffy's NPI (1588294581) is active in the NPPES registry as of the last update on 2023-08-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.