NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1922062884 MD
Verify on CMS → Andrew Willet, MD
Family Medicine Physician in Dover, 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 147,760 in Family Medicine Physician, 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
104
Medicare Part D claims · 35 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Andrew Willet, MD filed 104 Medicare Part D claims in 2023 as a Family Medicine Physician in Dover, Delaware, prescribing 88% generic.
- 104
- Part D claims, 2023
- 88%
- generic prescribing
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.
Andrew Willet, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
104 35th percentile higher than 35% 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
◑
Board-eligible specialty (heuristic, not verified)
Andrew Willet, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Andrew Willet, MD?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
104 97% vs specialty avg
Specialty distribution in Delaware
How Family Medicine Physician 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 Family Medicine Physician. 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).
Andrew Willet, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 230 BEISER BLVD, Dover, DE, 19904, with a listed phone of (302) 735-1880. NPI 1922062884 was issued on 04/16/2006.
Medicare Part D records for calendar year 2023 show 104 prescription claims written by this provider, covering 35 Medicare beneficiaries and totaling roughly $5K in drug spend, split 13% brand-name and 88% generic by claim count.
Family Medicine Physician is a high-volume specialty nationwide, with 147,760 enrolled providers across 56 states and an average of 3,418 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 | 1922062884 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/16/2006 |
Brand vs generic prescribing mix · Typical
Andrew Willet, MD - brand share 13.0%
Family Medicine Physician average
13% brand-name claims vs 88% generic, on 104 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.
104
Total Claims
$5K
Total Drug Cost
35
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 198
- Total Day Supply
- 5,697
- Brand vs Generic
- 13% brand / 88% generic
- Brand Drug Cost
- $4K
- Generic Drug Cost
- $1K
Patient Demographics
- Average Patient Age
- 73.5 years
- Avg HCC Risk Score
- 0.87
- Gender Split
- 54% female / 46% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Trazodone Hcl | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Andrew Willet, MD fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Andrew Willet, MD's 104 claims are below the specialty average of 3,418.
Nearby Family Medicine Physician Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Willet.
Dr. Remedios Abad
MD
Wilmington, DE
Dr. Heran Abiye
MD
Newark, DE
Dr. Jerome Abrams
M.D.
Dover, DE
Dr. Gregory Adams
M.D.
Bear, DE
Dr. Rakesh Agarwal
M.D.
Wilmington, DE
Compare Family Medicine Physician 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 Family Medicine Physician 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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Step-by-step guide to choosing a provider
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Check NPI, board certification & license status
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
Explore Delaware
Frequently Asked Questions
What is Andrew Willet, MD's specialty? ▼
Andrew Willet, MD specializes in Family Medicine Physician and practices in Dover, Delaware. Credentials: MD.
How much does Andrew Willet, MD prescribe under Medicare Part D? ▼
In 2023, Andrew Willet, MD wrote 104 Medicare Part D claims totaling $5K in drug costs for 35 beneficiaries.
Where is Andrew Willet, MD located? ▼
Andrew Willet, MD is located at 230 BEISER BLVD, Dover, DE, 19904. Phone: (302) 735-1880.
What is Andrew Willet, MD's NPI number? ▼
Andrew Willet, MD's National Provider Identifier (NPI) is 1922062884, issued on 04/16/2006.
Does Andrew Willet, MD prescribe more brand-name or generic drugs? ▼
Andrew Willet, MD's prescribing is 13% brand-name and 88% generic drugs by claim count, with $4K in brand drug costs.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Andrew Willet, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Andrew Willet, MD's most frequently prescribed drugs include Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Andrew Willet, MD accept Medicare? ▼
Andrew Willet, MD appears in CMS Medicare data with 104 Part D claims and 35 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Andrew Willet, MD's credentials? ▼
Andrew Willet, MD's NPI is 1922062884 with credentials MD. 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
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.