Medicare Enrolled

Dr. Jennifer Duncan, N.P

Physician Assistant · Marysville, CA
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
Low-engagement
414 G ST, Marysville, CA 95901
5307411122
In practice since 2008 (18 years)
NPI: 1043495021 verify on NPPES ↗
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating. This page presents federal public records about Dr. Duncan from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Duncan? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Duncan

Dr. Jennifer Duncan is a physician assistant in Marysville, CA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Duncan performed 910 Medicare services across 239 unique beneficiaries.

Between the years covered by Open Payments, Dr. Duncan received a total of $454 from 13 pharmaceutical and/or device companies across 26 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in physician assistant. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Duncan is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 18 years in practice ▲ Top 11% volume in CA $454 industry payments

Medicare Practice Summary

Medicare Utilization ↗
910
Medicare services
Top 11% in CA for physician assistant
239
Unique beneficiaries
$21
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~51 Medicare services per year of practice

Top procedures by volume

Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.

Procedure Volume Avg. paid Avg. submitted
Telephone medical discussion, 5-10 minutes
A phone conversation with a physician lasting between 5 and 10 minutes to discuss medical matters.
 696 $22 $124
Office visit, established patient (10-19 min)
An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition.
 106 $24 $126
Prothrombin time test (blood clotting)
A laboratory test that measures how long it takes for blood to clot. This procedure evaluates the body's coagulation process.
 72 $4 $9
Exercise or drug-induced heart stress test with ECG
A heart stress test performed using exercise or medication while an electrocardiogram is monitored under physician supervision.
 36 $12 $56
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.

Industry Payment Transparency

Open Payments through 2024 ↗
$454
Total received (2022-2024)
Avg $151/year across 3 years
Top 39% in CA for physician assistant
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
13
Companies
26
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →

Payment profile

Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.

Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$454 (100.0%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$250
2023
$187
2022
$18

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Exact Sciences Corporation
$60
Novo Nordisk Inc
$49
ALK-Abello, Inc
$40
Amgen Inc.
$33
Dexcom, Inc.
$30
Astellas Pharma US Inc
$22
Indivior Inc.
$16
Top 3 companies account for 59.6% of 2024 payments
All-time payments by company (2022-2024) ›
Exact Sciences Corporation
$130
Amgen Inc.
$65
Novo Nordisk Inc
$49
ALK-Abello, Inc
$40
Dexcom, Inc.
$30
Astellas Pharma US Inc
$22
AstraZeneca Pharmaceuticals LP
$18
Janssen Pharmaceuticals, Inc
$18
Biohaven Pharmaceutical Holding Company Ltd.
$18
Boehringer Ingelheim Pharmaceuticals, Inc.
$18
Medtronic, Inc.
$17
Indivior Inc.
$16
SANOFI PASTEUR INC.
$14
Top 3 companies account for 53.6% of all-time payments
Associated products mentioned in payments ›
Cologuard Collection Kit · Dexcom G6 Transmitter · FARXIGA · FLUZONE HIGH-DOSE · Grastek · JARDIANCE · MINIMED 780G · NURTEC ODT · Odactra · Otezla · Ozempic · Rybelsus · SPRAVATO · SUBLOCADE · Veozah
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →

Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.

Looking for a physician assistant in Marysville?
Compare physician assistants in the Marysville area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Physician assistants within 10 mi
38
Per 100K population
45.7
County median income
$73,313
Nearest hospital
ADVENTIST HEALTH AND RIDEOUT
0.0 mi

Data Sources

Provider Registry ✓ NPPES Weekly updates
Medicare Enrollment ✓ PECOS Monthly updates
Practice Data ✓ Medicare Util. Annual (CY lag)
Industry Payments ✓ Open Payments CY 2024
Disciplinary History — Not public N/A

This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →

Summary

Dr. Duncan is a mixed practice specialist, with above-average Medicare volume (top 11% in CA), with low-engagement industry engagement, with 18 years of NPI registration.

This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →

Frequently Asked Questions

Is Dr. Duncan experienced with telephone medical discussion, 5-10 minutes?
Based on Medicare claims data, Dr. Duncan performed 696 telephone medical discussion, 5-10 minutes services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Duncan receive payments from pharmaceutical companies?
Yes. Dr. Duncan received a total of $454 from 13 companies across 26 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Duncan's costs compare to other physician assistants in Marysville?
Dr. Duncan's average Medicare payment per service is $21. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Duncan) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →

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About this page

All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.

This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →