Karen Duncan, RNC, MSN
NPI 1932369865 · Nurse Practitioner · Vineland, NJ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Duncan, RNC, MSN is a Nurse Practitioner provider in Vineland, NJ (NPI 1932369865).
Provider details
- NPI number
- 1932369865
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RNC, MSN
- Sex
- Female
- Sole proprietor
- No
- License
- 26NJ00160800 (NJ)
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 tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
89 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 36 | $35 |
| Screening Papanicolaou Smear; Obtaining, Preparing and Conveyance of Cervical Or Vaginal Smear to LaboratoryQ0091 | 29 | $40 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 24 | $82 |
Typical Medicare-allowed amounts for these services range $35–$82 (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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 44 | 16 |
| Norethindrone | 17 | — |
| Fluconazole | 15 | 11 |
| Valacyclovir Hclbrand: Valacyclovir | 14 | — |
| Clotrimazole/Betamethasone Dipbrand: Clotrimazole-Betamethasone | 13 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-13
- Last updated
- 2012-02-16
Frequently asked questions
- What is Karen Duncan's NPI number?
- Karen Duncan's National Provider Identifier (NPI) is 1932369865, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Duncan's specialty?
- Karen Duncan is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Duncan located?
- Karen Duncan's practice location on file with NPPES is 484 S Brewster Rd, Vineland, NJ 08361-7874.
- What is Karen Duncan's phone number?
- The practice phone number listed in the NPPES registry for Karen Duncan is (856) 696-0300.
- Does Karen Duncan accept Medicare?
- Karen Duncan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Duncan's NPI active?
- Yes — Karen Duncan's NPI (1932369865) is active in the NPPES registry as of the last update on 2012-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.