NPI registry status
Active
2026 NPPES data Allergy & Immunology Physician NPI 1306840343 MD
Verify on CMS → Kevin McGrath, MD
Allergy & Immunology Physician in Wethersfield, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,394 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
709
Medicare Part D claims · 100 beneficiaries · Allergy & Immunology Physician avg: 764
Generic prescribing
0%
generic claims · 57% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.5K
65 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
Kevin McGrath, MD filed 709 Medicare Part D claims in 2023 as a Allergy & Immunology Physician in Wethersfield, Connecticut, prescribing 0% generic.
- 709
- Part D claims, 2023
- 0%
- generic prescribing
- $1.5K
- 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.
Kevin McGrath, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
709 Top 29% higher than 71% 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)
Kevin McGrath, 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 Kevin McGrath, MD?
Quality data not reportedPrimary specialty
Allergy & Immunology Physician
Medicare Part D claims
709 7% vs specialty avg
Specialty distribution in Connecticut
How Allergy & Immunology Physician compares to other specialties among Connecticut 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).
Kevin McGrath, MD appears in the CMS NPPES registry as an Allergy & Immunology Physician provider holding MD credentials at 912 SILAS DEANE HWY STE 100, Wethersfield, CT, 06109, with a listed phone of (860) 257-3535. NPI 1306840343 was issued on 06/08/2005.
Medicare Part D records for calendar year 2023 show 709 prescription claims written by this provider, covering 100 Medicare beneficiaries and totaling roughly $248K in drug spend, split 57% brand-name and 0% generic by claim count.
Allergy & Immunology Physician is a narrow specialty nationwide, with 3,394 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 | 1306840343 |
|---|---|
| Specialty | Allergy & Immunology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/08/2005 |
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 Kevin McGrath, MD. Source: openpaymentsdata.cms.gov.
Total received
$1.5K
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 · Brand-heavy
Kevin McGrath, MD - brand share 57.0%
Allergy & Immunology Physician average
57% brand-name claims vs 0% generic, on 709 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.
709
Total Claims
$248K
Total Drug Cost
100
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,299
- Total Day Supply
- 37,155
- Brand vs Generic
- 57% brand / 0% generic
- Brand Drug Cost
- $226K
- Antibiotic Claims
- 15
Patient Demographics
- Average Patient Age
- 69.1 years
- Avg HCC Risk Score
- 1.20
- Gender Split
- 73% female / 27% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Kevin McGrath, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Albuterol Sulfate …
Albuterol Sulfate Hfa
100 claims
- Breo Ellipta
Breo Ellipta
86 claims
- Symbicort
Symbicort
59 claims
- Montelukast Sodium
Montelukast Sodium
50 claims
- Epinephrine
Epinephrine
44 claims
- Levocetirizine Dih… 38
Levocetirizine Dihydrochloride
38 claims
- Prednisone 35
Prednisone
35 claims
- Trelegy Ellipta 31
Trelegy Ellipta
31 claims
| Drug | Claims |
|---|---|
| Albuterol Sulfate Hfa Albuterol Sulfate | 100 |
| Breo Ellipta Fluticasone/Vilanterol | 86 |
| Symbicort Budesonide/Formoterol Fumarate | 59 |
| Montelukast Sodium | 50 |
| Epinephrine | 44 |
| Levocetirizine Dihydrochloride | 38 |
| Prednisone | 35 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 31 |
| Fluticasone Propionate | 29 |
| Azelastine Hcl | 20 |
* 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 Kevin McGrath, MD fits within the Allergy & Immunology Physician landscape nationally.
3,394
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider
Kevin McGrath, MD's 709 claims are below the specialty average of 764.
Nearby Allergy & Immunology Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as McGrath.
Dr. Jasmine Abbosh
MD
West Hartford, CT
Dr. Philip Askenase
MD
New Haven, CT
Dr. Kenneth Backman
M.D.
Fairfield, CT
Dr. Robert Bedard
MD
West Hartford, CT
Dr. Katherine Bloom
M.D.
Fairfield, CT
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 Connecticut 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 Kevin McGrath, MD's specialty? ▼
Kevin McGrath, MD specializes in Allergy & Immunology Physician and practices in Wethersfield, Connecticut. Credentials: MD.
How much does Kevin McGrath, MD prescribe under Medicare Part D? ▼
In 2023, Kevin McGrath, MD wrote 709 Medicare Part D claims totaling $248K in drug costs for 100 beneficiaries.
Where is Kevin McGrath, MD located? ▼
Kevin McGrath, MD is located at 912 SILAS DEANE HWY STE 100, Wethersfield, CT, 06109. Phone: (860) 257-3535.
What is Kevin McGrath, MD's NPI number? ▼
Kevin McGrath, MD's National Provider Identifier (NPI) is 1306840343, issued on 06/08/2005.
Does Kevin McGrath, MD prescribe more brand-name or generic drugs? ▼
Kevin McGrath, MD's prescribing is 57% brand-name and 0% generic drugs by claim count, with $226K in brand drug costs.
How many Allergy & Immunology Physician providers are there in the US? ▼
There are 3,394 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 Kevin McGrath, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Kevin McGrath, MD's most frequently prescribed drugs include Albuterol Sulfate Hfa, Breo Ellipta, Symbicort. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kevin McGrath, MD accept Medicare? ▼
Kevin McGrath, MD appears in CMS Medicare data with 709 Part D claims and 100 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kevin McGrath, MD's credentials? ▼
Kevin McGrath, MD's NPI is 1306840343 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.
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.