NPI registry status
Active
2026 NPPES data Allergy & Immunology Physician NPI 1912904038 M.D.
Verify on CMS → David Wien, M.D.
Allergy & Immunology Physician 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 3,390 in Allergy & Immunology 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
2K
Medicare Part D claims · 241 beneficiaries · Allergy & Immunology Physician avg: 764
Industry payments
$2.7K
96 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
David Wien, M.D. filed 1,621 Medicare Part D claims in 2023 as a Allergy & Immunology Physician in Wilmington, Delaware.
- 2K
- Part D claims, 2023
- $2.7K
- 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.
David Wien, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,621 Top 18% higher than 82% 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)
David Wien, M.D. 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 David Wien, M.D.?
Quality data not reportedPrimary specialty
Allergy & Immunology Physician
Medicare Part D claims
1,621 112% vs specialty avg
Specialty distribution in Delaware
How Allergy & Immunology 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 Allergy & Immunology 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).
David Wien, M.D. appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding M.D. credentials at 708 GREENBANK RD, Wilmington, DE, 19808, with a listed phone of (302) 998-1866. NPI 1912904038 was issued on 07/05/2005.
Medicare Part D records for calendar year 2023 show 1,621 prescription claims written by this provider, covering 241 Medicare beneficiaries and totaling roughly $485K in drug spend.
Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 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 | 1912904038 |
|---|---|
| Specialty | Allergy & Immunology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/05/2005 |
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 David Wien, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$2.7K
Largest payer
AstraZeneca Pharmaceuticals LP
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,621
Total Claims
$485K
Total Drug Cost
241
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,396
- Total Day Supply
- 63,573
- Generic Drug Cost
- $34K
- Antibiotic Claims
- 209
Patient Demographics
- Average Patient Age
- 70.9 years
- Avg HCC Risk Score
- 1.24
- Gender Split
- 66% female / 34% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Wien, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Fluticasone Propio…
Fluticasone Propionate
287 claims
- Azelastine Hcl
Azelastine Hcl
252 claims
- Prednisone
Prednisone
163 claims
- Trelegy Ellipta
Trelegy Ellipta
129 claims
- Doxycycline Hyclate 81
Doxycycline Hyclate
81 claims
- Albuterol Sulfate … 63
Albuterol Sulfate Hfa
63 claims
- Montelukast Sodium 59
Montelukast Sodium
59 claims
- Cefdinir 55
Cefdinir
55 claims
| Drug | Claims |
|---|---|
| Fluticasone Propionate | 287 |
| Azelastine Hcl | 252 |
| Prednisone | 163 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 129 |
| Doxycycline Hyclate | 81 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 63 |
| Montelukast Sodium | 59 |
| Cefdinir | 55 |
| Breztri Aerosphere Budesonide/Glycopyr/Formoterol | 45 |
| Fluticasone-Salmeterol Fluticasone Propion/Salmeterol | 31 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Allergy & Immunology Physician Overview
How David Wien, M.D. fits within the Allergy & Immunology Physician landscape nationally.
3,390
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider
David Wien, M.D.'s 1,621 claims are above the specialty average of 764.
Nearby Allergy & Immunology Physician Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Wien.
Dr. Sokun Bhatti
MD
Newark, DE
Thomas Graves
Newark, DE
Junfang Jiao
Newark, DE
Dr. Richard Kim
M.D.
Wilmington, DE
Dr. Trong Le
M.D.
Wilmington, DE
Compare Allergy & Immunology 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 Allergy & Immunology 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.
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Frequently Asked Questions
What is David Wien, M.D.'s specialty? ▼
David Wien, M.D. specializes in Allergy & Immunology Physician and practices in Wilmington, Delaware. Credentials: M.D..
How much does David Wien, M.D. prescribe under Medicare Part D? ▼
In 2023, David Wien, M.D. wrote 1,621 Medicare Part D claims totaling $485K in drug costs for 241 beneficiaries.
Where is David Wien, M.D. located? ▼
David Wien, M.D. is located at 708 GREENBANK RD, Wilmington, DE, 19808. Phone: (302) 998-1866.
What is David Wien, M.D.'s NPI number? ▼
David Wien, M.D.'s National Provider Identifier (NPI) is 1912904038, issued on 07/05/2005.
How many Allergy & Immunology Physician providers are there in the US? ▼
There are 3,390 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does David Wien, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, David Wien, M.D.'s most frequently prescribed drugs include Fluticasone Propionate, Azelastine Hcl, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Wien, M.D. accept Medicare? ▼
David Wien, M.D. appears in CMS Medicare data with 1,621 Part D claims and 241 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Wien, M.D.'s credentials? ▼
David Wien, M.D.'s NPI is 1912904038 with credentials M.D.. 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.