Jennifer Duncan, N.P
NPI 1043495021 · Nurse Practitioner · Marysville, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Duncan, N.P is a Nurse Practitioner provider in Marysville, CA (NPI 1043495021).
Provider details
- NPI number
- 1043495021
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P
- Sex
- Female
- Sole proprietor
- No
- License
- NP17832 (CA)
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
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
669 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) |
|---|---|---|
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 595 | $39 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision By Physician93016 | 39 | $18 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 35 | $45 |
Typical Medicare-allowed amounts for these services range $18–$45 (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 · 40 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 164 | 55 |
| Metformin Hcl | 140 | 33 |
| Amlodipine Besylate | 102 | 33 |
| Warfarin Sodium | 100 | 30 |
| Lisinopril | 99 | 33 |
| Levothyroxine Sodium | 87 | 21 |
| Albuterol Sulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$250 across 14 records (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
Registry dates
- Enumerated
- 2008-01-08
- Last updated
- 2018-09-13
Frequently asked questions
- What is Jennifer Duncan's NPI number?
- Jennifer Duncan's National Provider Identifier (NPI) is 1043495021, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Duncan's specialty?
- Jennifer Duncan is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jennifer Duncan located?
- Jennifer Duncan's practice location on file with NPPES is 414 G St, Marysville, CA 95901-5663.
- What is Jennifer Duncan's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Duncan is (530) 741-1122.
- Does Jennifer Duncan accept Medicare?
- Jennifer Duncan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Duncan's NPI active?
- Yes — Jennifer Duncan's NPI (1043495021) is active in the NPPES registry as of the last update on 2018-09-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.