NPI registry status
Active
2026 NPPES data Allergy & Immunology Physician NPI 1699756841 MD
Verify on CMS → Pierre-Alain Dauby, MD
Allergy & Immunology Physician in Fairfax, Virginia.
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
473
Medicare Part D claims · 92 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
56%
generic claims · 44% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Pierre-Alain Dauby, MD filed 473 Medicare Part D claims in 2023 as a Allergy & Immunology Physician in Fairfax, Virginia, prescribing 56% generic.
- 473
- Part D claims, 2023
- 56%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Pierre-Alain Dauby, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
473 Top 38% higher than 62% 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 certification likely (heuristic, not verified)
Pierre-Alain Dauby, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Pierre-Alain Dauby, MD?
Quality data not reportedPrimary specialty
Allergy & Immunology Physician
Medicare Part D claims
473 38% vs specialty avg
Specialty distribution in Virginia
How Allergy & Immunology Physician compares to other specialties among Virginia 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).
Pierre-Alain Dauby, MD appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding MD credentials at 13135 ROUTE 50 STE 215, Fairfax, VA, 22033, with a listed phone of (703) 378-5155. NPI 1699756841 was issued on 11/07/2005.
Medicare Part D records for calendar year 2023 show 473 prescription claims written by this provider, covering 92 Medicare beneficiaries and totaling roughly $235K in drug spend, split 44% brand-name and 56% generic by claim count.
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 | 1699756841 |
|---|---|
| Specialty | Allergy & Immunology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/07/2005 |
Hospital and facility affiliations
Facilities where Pierre-Alain Dauby, MD 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.
Allergy Partners PLLC
Chantilly, VA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Above average
Pierre-Alain Dauby, MD - brand share 44.0%
Allergy & Immunology Physician average
44% brand-name claims vs 56% generic, on 473 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.
473
Total Claims
$235K
Total Drug Cost
92
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 763
- Total Day Supply
- 22,151
- Brand vs Generic
- 44% brand / 56% generic
- Brand Drug Cost
- $216K
- Generic Drug Cost
- $20K
Patient Demographics
- Average Patient Age
- 72.2 years
- Avg HCC Risk Score
- 1.01
- Gender Split
- 64% female / 36% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Pierre-Alain Dauby, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Montelukast Sodium
Montelukast Sodium
143 claims
- Fluticasone-Salmet…
Fluticasone-Salmeterol
58 claims
- Albuterol Sulfate … 25
Albuterol Sulfate Hfa
25 claims
- Symbicort 24
Symbicort
24 claims
- Azelastine Hcl 23
Azelastine Hcl
23 claims
- Advair Diskus 21
Advair Diskus
21 claims
- Advair Hfa 20
Advair Hfa
20 claims
- Trelegy Ellipta 19
Trelegy Ellipta
19 claims
| Drug | Claims |
|---|---|
| Montelukast Sodium | 143 |
| Fluticasone-Salmeterol Fluticasone Propion/Salmeterol | 58 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 25 |
| Symbicort Budesonide/Formoterol Fumarate | 24 |
| Azelastine Hcl | 23 |
| Advair Diskus Fluticasone Propion/Salmeterol | 21 |
| Advair Hfa Fluticasone Propion/Salmeterol | 20 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 19 |
| Cuvitru Immun Glob G(Igg)/Gly/Iga Ov50 | 14 |
| Epinephrine | 13 |
* 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 Pierre-Alain Dauby, MD 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
Pierre-Alain Dauby, MD's 473 claims are below the specialty average of 764.
Nearby Allergy & Immunology Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Dauby.
Dr. Parasmani Acharya
M.D.
Pulaski, VA
Veronica Alix
Hampton, VA
Dr. Darshana Alle
M.D.
Henrico, VA
Dr. Oral Alpan
MD
Springfield, VA
Dr. Donald Asbury
MD
Bluefield, VA
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 Virginia 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 Pierre-Alain Dauby, MD's specialty? ▼
Pierre-Alain Dauby, MD specializes in Allergy & Immunology Physician and practices in Fairfax, Virginia. Credentials: MD.
How much does Pierre-Alain Dauby, MD prescribe under Medicare Part D? ▼
In 2023, Pierre-Alain Dauby, MD wrote 473 Medicare Part D claims totaling $235K in drug costs for 92 beneficiaries.
Where is Pierre-Alain Dauby, MD located? ▼
Pierre-Alain Dauby, MD is located at 13135 ROUTE 50 STE 215, Fairfax, VA, 22033. Phone: (703) 378-5155.
What is Pierre-Alain Dauby, MD's NPI number? ▼
Pierre-Alain Dauby, MD's National Provider Identifier (NPI) is 1699756841, issued on 11/07/2005.
Does Pierre-Alain Dauby, MD prescribe more brand-name or generic drugs? ▼
Pierre-Alain Dauby, MD's prescribing is 44% brand-name and 56% generic drugs by claim count, with $216K in brand drug costs.
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 Pierre-Alain Dauby, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Pierre-Alain Dauby, MD's most frequently prescribed drugs include Montelukast Sodium, Fluticasone-Salmeterol, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Pierre-Alain Dauby, MD accept Medicare? ▼
Pierre-Alain Dauby, MD appears in CMS Medicare data with 473 Part D claims and 92 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Pierre-Alain Dauby, MD's credentials? ▼
Pierre-Alain Dauby, MD's NPI is 1699756841 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
Compiled from official public sources by the PlainDoctor editorial team.