Jennifer Ann Duncan, NP
- Medicare patients, 2024
- 102
- Part D claims, 2024
- 2,003
- Hospital affiliations
- 3
- Industry payments
- $53
- Medical groups
- 3
- Practice address
- 555 Fremont Street, Colusa, CA 95932
- Practice phone
- Call (916) 458-8635
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ampla Health Colusa
FQHC - Main Site · Colusa, California
Find Jennifer Duncan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Jennifer Ann Duncan is a nurse practitioner in Colusa, California
Jennifer Duncan practices at Ampla Health Colusa in Colusa, California.
Jennifer Duncan's NPI, 1043495021, was assigned on January 8, 2008. Jennifer Duncan holds California license NP17832.
- NPI
- 1043495021NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648354613
- NPI enumeration date
- January 8, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (916) 458-8635
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Jennifer Ann Duncan practices at Ampla Health Colusa in Colusa, California
Jennifer Duncan's primary practice is Ampla Health Colusa, at 555 Fremont Street, Colusa, CA 95932 in Colusa County. The practice phone is (916) 458-8635.
- Ampla Health Colusa555 Fremont Street, Colusa, CA 95932 · Colusa CountyPhone(916) 458-8635
Source: Dmand AI Affiliation Data
Jennifer Ann Duncan is affiliated with 8 sites of care and 3 medical groups
Jennifer Duncan's primary practice is Ampla Health Colusa in Colusa, California. Jennifer Duncan is also affiliated with Colusa Medical Center. The medical group on file is Adventist Health Physicians Network. Dmand AI also links Jennifer Duncan to 2 more hospitals, 2 group practices and clinics, 2 home health agencies and 2 medical groups, each named with a free account. Jennifer Duncan's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Jennifer Ann Duncan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Jennifer Duncan practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ampla Health Colusa | Available with a free account |
| +7 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Jennifer Ann Duncan is one of 5,983 nurse practitioners in California
Nurse practitioner is Jennifer Duncan's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Jennifer Duncan is licensed in California.
Specialties and state licenses
- Nurse practitioner, CaliforniaPrimary
Nurse practitioners near Jennifer Duncan
Counts of nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Jennifer Ann Duncan treated 102 Medicare patients in 2024, average age 75
CMS counts 102 Medicare patients who saw Jennifer Duncan in 2024. The largest group is 65 to 74, with 37 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 1.77, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Jennifer Duncan's median patient age at 48, with 71% women.
Jennifer Duncan's Medicare patients by age, 2024
Jennifer Duncan's Medicare patients by sex, 2024
- Women5251%
- Men5049%
Chronic conditions among Jennifer Duncan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Atrial fibrillation65%
- Ischemic heart disease46%
- Diabetes45%
- Arthritis42%
- Heart failure42%
- Chronic kidney disease41%
Share of Medicare patients with each condition. A patient can have several.
Jennifer Duncan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women71%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Jennifer Ann Duncan wrote 2,003 Medicare Part D claims in 2024
In 2024, Jennifer Duncan wrote 2,003 Medicare Part D claims for 239 patients. 86% of them were for generic drugs.
Jennifer Duncan's Part D claims by kind of drug, 2024
- Generic1,715 claims86%
- Brand-name and other288 claims14%
Drug classes CMS tracks in Jennifer Duncan's Part D claims, 2024
- Antibiotics2%43 of 2,003 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Jennifer Ann Duncan offers telehealth to Medicare patients
Jennifer Duncan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Jennifer Duncan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Jennifer Ann Duncan received $53 in industry payments in 2025
CMS Open Payments shows 3 general payments to Jennifer Duncan from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Hologic Inc paid the most, $20.
Companies that paid Jennifer Duncan the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Jennifer Ann Duncan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Jennifer Ann Duncan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Jennifer Ann Duncan's NPI number?
Jennifer Ann Duncan's NPI number is 1043495021. It was assigned on January 8, 2008, and it is active in the NPI Registry.
What does Jennifer Ann Duncan specialize in?
Jennifer Ann Duncan is a nurse practitioner in Colusa, California. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Jennifer Ann Duncan practice?
Jennifer Duncan practices at 555 Fremont Street, Colusa, CA 95932. Jennifer Duncan's primary practice is Ampla Health Colusa in Colusa, California. Dmand AI also links Jennifer Duncan to 2 hospitals, 2 group practices and clinics, 2 home health agencies and 2 medical groups.
What is Jennifer Ann Duncan's office phone number?
The practice phone on file for Jennifer Duncan is (916) 458-8635.
What is Jennifer Ann Duncan's medical license number?
Jennifer Duncan holds California license NP17832.
Which hospitals is Jennifer Ann Duncan affiliated with?
Jennifer Duncan is affiliated with Colusa Medical Center. Dmand AI links Jennifer Duncan to 2 more hospitals.
What medical group is Jennifer Ann Duncan part of?
Jennifer Duncan is linked to Adventist Health Physicians Network. Dmand AI links Jennifer Duncan to 2 more medical groups.
Does Jennifer Ann Duncan accept Medicare?
Yes. CMS lists Jennifer Duncan as accepting Medicare assignment.
Does Jennifer Ann Duncan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Jennifer Duncan as offering telehealth services.
How many Medicare patients does Jennifer Ann Duncan see?
CMS counts 102 Medicare patients who saw Jennifer Duncan in 2024, with an average age of 75.
Has Jennifer Ann Duncan received payments from drug or device companies?
CMS Open Payments shows $53 in general payments to Jennifer Duncan from 3 companies from 2025 to 2025. The largest total came from Hologic Inc.
How long has Jennifer Ann Duncan been practicing?
Jennifer Duncan graduated from medical school in 1999, 27 years ago.
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