NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1114946829 APN
Verify on CMS → Kathleen Andersen, APN
Nurse Practitioner in Wilmington, 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 87,227 in Nurse Practitioner, 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
3K
Medicare Part D claims · 174 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
85%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$21.94
1 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
Kathleen Andersen, APN filed 2,866 Medicare Part D claims in 2023 as a Nurse Practitioner in Wilmington, Delaware, prescribing 85% generic.
- 3K
- Part D claims, 2023
- 85%
- generic prescribing
- $21.94
- 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.
Kathleen Andersen, APN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,866 Top 12% higher than 88% 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 Kathleen Andersen, APN?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
2,866 164% vs specialty avg
Specialty distribution in Delaware
How Nurse Practitioner 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 Nurse Practitioner. 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).
Kathleen Andersen, APN appears in the CMS NPPES registry as a Nurse Practitioner provider holding APN credentials at 4512 KIRKWOOD HIGHWAY, Wilmington, DE, 19808, with a listed phone of (302) 999-0137. NPI 1114946829 was issued on 07/19/2006.
Medicare Part D records for calendar year 2023 show 2,866 prescription claims written by this provider, covering 174 Medicare beneficiaries and totaling roughly $293K in drug spend, split 14% brand-name and 85% generic by claim count, with an opioid prescribing rate of 1.3%.
Nurse Practitioner is a high-volume specialty nationwide, with 87,227 enrolled providers across 56 states and an average of 1,084 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 | 1114946829 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | APN |
| Gender | Female |
| NPI Issued | 07/19/2006 |
Hospital and facility affiliations
Facilities where Kathleen Andersen, APN 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.
Southbridge Medical Advisory Council 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 Kathleen Andersen, APN. Source: openpaymentsdata.cms.gov.
Total received
$22
Largest payer
Bayer Healthcare Pharmaceuticals 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
Kathleen Andersen, APN - brand share 14.0%
Nurse Practitioner average
14% brand-name claims vs 85% generic, on 2,866 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.
2,866
Total Claims
$293K
Total Drug Cost
174
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,857
- Total Day Supply
- 168,900
- Brand vs Generic
- 14% brand / 85% generic
- Brand Drug Cost
- $241K
- Generic Drug Cost
- $50K
- Opioid Claims
- 37 (1.3% rate)
- Antibiotic Claims
- 96
Patient Demographics
- Average Patient Age
- 68.4 years
- Avg HCC Risk Score
- 1.45
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 52, 65-74: 74, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Kathleen Andersen, APN prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amlodipine Besylate
Amlodipine Besylate
163 claims
- Atorvastatin Calcium
Atorvastatin Calcium
139 claims
- Lisinopril
Lisinopril
130 claims
- Metformin Hcl
Metformin Hcl
121 claims
- Omeprazole
Omeprazole
96 claims
- Gabapentin
Gabapentin
95 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
91 claims
- Hydrochlorothiazide
Hydrochlorothiazide
79 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 163 |
| Atorvastatin Calcium | 139 |
| Lisinopril | 130 |
| Metformin Hcl | 121 |
| Omeprazole | 96 |
| Gabapentin | 95 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 91 |
| Hydrochlorothiazide | 79 |
| Metoprolol Succinate | 76 |
| Fluticasone Propionate | 53 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Kathleen Andersen, APN fits within the Nurse Practitioner landscape nationally.
87,227
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider
Kathleen Andersen, APN's 2,866 claims are above the specialty average of 1,084.
Nearby Nurse Practitioner Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Andersen.
Dr. Hannah Abinteh
NP
Wilmington, DE
Dr. Jittu Abraham
NP
Newark, DE
Dr. Sarah Abugah
PMHNP
Middletown, DE
Davi-Lue Achu
Wilmington, DE
Vanessa Adams
Lewes, DE
Compare Nurse Practitioner 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 Nurse Practitioner 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.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
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Frequently Asked Questions
What is Kathleen Andersen, APN's specialty? ▼
Kathleen Andersen, APN specializes in Nurse Practitioner and practices in Wilmington, Delaware. Credentials: APN.
How much does Kathleen Andersen, APN prescribe under Medicare Part D? ▼
In 2023, Kathleen Andersen, APN wrote 2,866 Medicare Part D claims totaling $293K in drug costs for 174 beneficiaries.
Where is Kathleen Andersen, APN located? ▼
Kathleen Andersen, APN is located at 4512 KIRKWOOD HIGHWAY, Wilmington, DE, 19808. Phone: (302) 999-0137.
What is Kathleen Andersen, APN's NPI number? ▼
Kathleen Andersen, APN's National Provider Identifier (NPI) is 1114946829, issued on 07/19/2006.
Does Kathleen Andersen, APN prescribe more brand-name or generic drugs? ▼
Kathleen Andersen, APN's prescribing is 14% brand-name and 85% generic drugs by claim count, with $241K in brand drug costs.
Does Kathleen Andersen, APN prescribe opioids? ▼
Yes, Kathleen Andersen, APN had 37 opioid claims in 2023 with an opioid prescribing rate of 1.3%.
How many Nurse Practitioner providers are there in the US? ▼
There are 87,227 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does Kathleen Andersen, APN prescribe most often? ▼
Based on 2023 Medicare Part D data, Kathleen Andersen, APN's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kathleen Andersen, APN accept Medicare? ▼
Kathleen Andersen, APN appears in CMS Medicare data with 2,866 Part D claims and 174 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kathleen Andersen, APN's credentials? ▼
Kathleen Andersen, APN's NPI is 1114946829 with credentials APN. 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.