NPI registry status
Active
2026 NPPES data Registered Nurse NPI 1104217595 FNP-C
Verify on CMS → Jennifer Willey, FNP-C
Registered Nurse in Lewes, Delaware.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 177,204 in Registered Nurse, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
5K
Medicare Part D claims · 466 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
89%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$506.67
23 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Jennifer Willey, FNP-C filed 4,870 Medicare Part D claims in 2023 as a Registered Nurse in Lewes, Delaware, prescribing 89% generic.
- 5K
- Part D claims, 2023
- 89%
- generic prescribing
- $506.67
- industry payments (Sunshine Act)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Jennifer Willey, FNP-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
4,870 Top 7% higher than 93% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Jennifer Willey, FNP-C?
Quality data not reportedPrimary specialty
Registered Nurse
Medicare Part D claims
4,870 387% vs specialty avg
Specialty distribution in Delaware
How Registered Nurse compares to other specialties among Delaware providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Registered Nurse. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Jennifer Willey, FNP-C appears in the CMS NPPES registry as a Registered Nurse provider holding FNP-C credentials at 20268 PLANTATIONS RD, Lewes, DE, 19958, with a listed phone of (302) 644-2633. NPI 1104217595 was issued on 02/07/2015.
Medicare Part D records for calendar year 2023 show 4,870 prescription claims written by this provider, covering 466 Medicare beneficiaries and totaling roughly $441K in drug spend, split 10% brand-name and 89% generic by claim count, with an opioid prescribing rate of 1.8%.
Registered Nurse is a high-volume specialty nationwide, with 177,204 enrolled providers across 56 states and an average of 1,000 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1104217595 |
|---|---|
| Specialty | Registered Nurse |
| Credentials | FNP-C |
| Gender | Female |
| NPI Issued | 02/07/2015 |
Hospital and facility affiliations
Facilities where Jennifer Willey, FNP-C bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Christiana Care Health Services Inc
Wilmington, DE
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Jennifer Willey, FNP-C. Source: openpaymentsdata.cms.gov.
Total received
$507
Largest payer
Novo Nordisk Inc
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Typical
Jennifer Willey, FNP-C - brand share 10.0%
Registered Nurse average
10% brand-name claims vs 89% generic, on 4,870 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
4,870
Total Claims
$441K
Total Drug Cost
466
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 12,077
- Total Day Supply
- 353,218
- Brand vs Generic
- 10% brand / 89% generic
- Brand Drug Cost
- $328K
- Generic Drug Cost
- $109K
- Opioid Claims
- 88 (1.8% rate)
- Antibiotic Claims
- 185
Patient Demographics
- Average Patient Age
- 72.2 years
- Avg HCC Risk Score
- 0.99
- Gender Split
- 55% female / 45% male
- Age Distribution
- <65: 32, 65-74: 272, 75-84: 144, 85+: 18
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Jennifer Willey, FNP-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
287 claims
- Levothyroxine Sodium
Levothyroxine Sodium
239 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
229 claims
- Amlodipine Besylate
Amlodipine Besylate
188 claims
- Losartan Potassium
Losartan Potassium
163 claims
- Omeprazole
Omeprazole
150 claims
- Metformin Hcl
Metformin Hcl
135 claims
- Hydrochlorothiazide
Hydrochlorothiazide
116 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 287 |
| Levothyroxine Sodium | 239 |
| Rosuvastatin Calcium | 229 |
| Amlodipine Besylate | 188 |
| Losartan Potassium | 163 |
| Omeprazole | 150 |
| Metformin Hcl | 135 |
| Hydrochlorothiazide | 116 |
| Simvastatin | 99 |
| Lisinopril | 93 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Registered Nurse Overview
How Jennifer Willey, FNP-C fits within the Registered Nurse landscape nationally.
177,204
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider
Jennifer Willey, FNP-C's 4,870 claims are above the specialty average of 1,000.
Nearby Registered Nurse Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Willey.
Linda Abbott
Lewes, DE
Shaakira Abdullah
Wilmington, DE
Dr. Mary Abercrombie
RN
Lewes, DE
Dr. Adrienne Abrenica
CRNP
New Castle, DE
Dr. Lorie Vic Acacio-Nolasco
R.N.
Lewes, DE
Compare Registered Nurse nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Delaware medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Registered Nurse peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Jennifer Willey, FNP-C's specialty? ▼
Jennifer Willey, FNP-C specializes in Registered Nurse and practices in Lewes, Delaware. Credentials: FNP-C.
How much does Jennifer Willey, FNP-C prescribe under Medicare Part D? ▼
In 2023, Jennifer Willey, FNP-C wrote 4,870 Medicare Part D claims totaling $441K in drug costs for 466 beneficiaries.
Where is Jennifer Willey, FNP-C located? ▼
Jennifer Willey, FNP-C is located at 20268 PLANTATIONS RD, Lewes, DE, 19958. Phone: (302) 644-2633.
What is Jennifer Willey, FNP-C's NPI number? ▼
Jennifer Willey, FNP-C's National Provider Identifier (NPI) is 1104217595, issued on 02/07/2015.
Does Jennifer Willey, FNP-C prescribe more brand-name or generic drugs? ▼
Jennifer Willey, FNP-C's prescribing is 10% brand-name and 89% generic drugs by claim count, with $328K in brand drug costs.
Does Jennifer Willey, FNP-C prescribe opioids? ▼
Yes, Jennifer Willey, FNP-C had 88 opioid claims in 2023 with an opioid prescribing rate of 1.8%.
How many Registered Nurse providers are there in the US? ▼
There are 177,204 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does Jennifer Willey, FNP-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Jennifer Willey, FNP-C's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Rosuvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jennifer Willey, FNP-C accept Medicare? ▼
Jennifer Willey, FNP-C appears in CMS Medicare data with 4,870 Part D claims and 466 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jennifer Willey, FNP-C's credentials? ▼
Jennifer Willey, FNP-C's NPI is 1104217595 with credentials FNP-C. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.