2026 NPPES data Allergy Physician NPI 1518057397 MD
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Denise Chevalier, MD

Allergy Physician in Largo, Maryland.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,019 in Allergy 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
264
Medicare Part D claims · 59 beneficiaries · Allergy Physician avg: 755
Generic prescribing
68%
generic claims · 32% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.1K
47 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Denise Chevalier, MD filed 264 Medicare Part D claims in 2023 as a Allergy Physician in Largo, Maryland, prescribing 68% generic.

264
Part D claims, 2023
68%
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.

Denise Chevalier, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

264 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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)

Denise Chevalier, 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 Denise Chevalier, MD?

Quality data not reported

NPI registry status

Active

Issued 10/13/2006

NPI 1518057397

Primary specialty

Allergy Physician

Niche

1,019 US NPIs in this specialty

Medicare Part D claims

264 65% vs specialty avg

2023 prescription claims

Specialty avg: 755

Specialty distribution in Maryland

How Allergy Physician compares to other specialties among Maryland providers

Maryland providers
Behavior Technician - 14.1%Behavior Technician14.1%Clinical Social Worker - 5.5%Clinical Social Worker5.5%Student in an Organized Health Care Education/Training Program - 4.5%Student in an Organized Health Care Education/Training Program4.5%Home Health Aide - 4.4%Home Health Aide4.4%Physical Therapist - 3.9%Physical Therapist3.9%Pharmacist - 3.6%Pharmacist3.6%Allergy Physician - 0%Allergy Physician0%
Largest specialties in Maryland (% of in-state 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 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).

Denise Chevalier, MD appears in the CMS NPPES registry as a Allergy Physician provider holding MD credentials at 1400 MERCANTILE LN, Largo, MD, 20774, with a listed phone of (301) 773-4100. NPI 1518057397 was issued on 10/13/2006.

Medicare Part D records for calendar year 2023 show 264 prescription claims written by this provider, covering 59 Medicare beneficiaries and totaling roughly $43K in drug spend, split 32% brand-name and 68% generic by claim count.

Allergy Physician is a narrow specialty nationwide, with 1,019 enrolled providers across 49 states and an average of 755 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

1400 MERCANTILE LN
Largo, MD 20774

Provider Details

NPI 1518057397
Specialty Allergy Physician
Credentials MD
Gender Female
NPI Issued 10/13/2006

Hospital and facility affiliations

Facilities where Denise Chevalier, 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.

Privia Medical Group, LLC
Upper Marlboro, MD

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 Denise Chevalier, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.1K

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.

Brand vs generic prescribing mix · Above average

Denise Chevalier, MD - brand share 32.0%
Allergy Physician average

32% brand-name claims vs 68% generic, on 264 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.

264
Total Claims
$43K
Total Drug Cost
59
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
390
Total Day Supply
10,744
Brand vs Generic
32% brand / 68% generic
Brand Drug Cost
$36K
Generic Drug Cost
$7K
Antibiotic Claims
17

Patient Demographics

Average Patient Age
69.5 years
Avg HCC Risk Score
1.12
Gender Split
80% female / 20% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Denise Chevalier, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Levocetirizine Dihydrochloride
27
Fluticasone Propionate
19
Montelukast Sodium
19
Breo Ellipta
Fluticasone/Vilanterol
18
Azelastine Hcl
15
Hydroxyzine Hcl
14
Prednisone
12
Albuterol Sulfate Hfa
Albuterol Sulfate
11
Esomeprazole Magnesium
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Allergy Physician Overview

How Denise Chevalier, MD fits within the Allergy Physician landscape nationally.

1,019
Allergy Physician Providers in US
49
States with Allergy Physician
755
Avg Claims per Provider

Denise Chevalier, MD's 264 claims are below the specialty average of 755.

Nearby Allergy Physician Providers in Maryland

Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Chevalier.

Compare Allergy 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 Maryland medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Allergy 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.

Frequently Asked Questions

What is Denise Chevalier, MD's specialty?
Denise Chevalier, MD specializes in Allergy Physician and practices in Largo, Maryland. Credentials: MD.
How much does Denise Chevalier, MD prescribe under Medicare Part D?
In 2023, Denise Chevalier, MD wrote 264 Medicare Part D claims totaling $43K in drug costs for 59 beneficiaries.
Where is Denise Chevalier, MD located?
Denise Chevalier, MD is located at 1400 MERCANTILE LN, Largo, MD, 20774. Phone: (301) 773-4100.
What is Denise Chevalier, MD's NPI number?
Denise Chevalier, MD's National Provider Identifier (NPI) is 1518057397, issued on 10/13/2006.
Does Denise Chevalier, MD prescribe more brand-name or generic drugs?
Denise Chevalier, MD's prescribing is 32% brand-name and 68% generic drugs by claim count, with $36K in brand drug costs.
How many Allergy Physician providers are there in the US?
There are 1,019 Allergy Physician providers across 49 states in the US. The average Allergy Physician provider writes 755 Medicare Part D claims per year.
What drugs does Denise Chevalier, MD prescribe most often?
Based on 2023 Medicare Part D data, Denise Chevalier, MD's most frequently prescribed drugs include Levocetirizine Dihydrochloride, Fluticasone Propionate, Montelukast Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Denise Chevalier, MD accept Medicare?
Denise Chevalier, MD appears in CMS Medicare data with 264 Part D claims and 59 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Denise Chevalier, MD's credentials?
Denise Chevalier, MD's NPI is 1518057397 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.