NPI registry status
Active
2026 NPPES data Allergy Physician NPI 1194720425 M.D.
Verify on CMS → Andrew Vayonis, M.D.
Allergy Physician in Pittsburgh, Pennsylvania.
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
1K
Medicare Part D claims · 258 beneficiaries · Allergy Physician avg: 755
Generic prescribing
64%
generic claims · 36% 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
Andrew Vayonis, M.D. filed 1,351 Medicare Part D claims in 2023 as a Allergy Physician in Pittsburgh, Pennsylvania, prescribing 64% generic.
- 1K
- Part D claims, 2023
- 64%
- 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.
Andrew Vayonis, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,351 Top 21% higher than 79% 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)
Andrew Vayonis, M.D. 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 Andrew Vayonis, M.D.?
Quality data not reportedPrimary specialty
Allergy Physician
Medicare Part D claims
1,351 79% vs specialty avg
Specialty distribution in Pennsylvania
How Allergy Physician compares to other specialties among Pennsylvania 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).
Andrew Vayonis, M.D. appears in the CMS NPPES registry as a Allergy Physician provider holding M.D. credentials at 2585 FREEPORT RD STE 210, Pittsburgh, PA, 15238, with a listed phone of (412) 828-3800. NPI 1194720425 was issued on 06/14/2005.
Medicare Part D records for calendar year 2023 show 1,351 prescription claims written by this provider, covering 258 Medicare beneficiaries and totaling roughly $276K in drug spend, split 36% brand-name and 64% 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
Provider Details
| NPI | 1194720425 |
|---|---|
| Specialty | Allergy Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/14/2005 |
Hospital and facility affiliations
Facilities where Andrew Vayonis, M.D. 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 And Asthma Associates OF Pittsburgh
Pittsburgh, PA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Pennsylvania PA-BOM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Andrew Vayonis, M.D.. To verify Andrew Vayonis, M.D.'s current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases
PA-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Andrew Vayonis, M.D. - brand share 36.0%
Allergy Physician average
36% brand-name claims vs 64% generic, on 1,351 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.
1,351
Total Claims
$276K
Total Drug Cost
258
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,237
- Total Day Supply
- 64,803
- Brand vs Generic
- 36% brand / 64% generic
- Brand Drug Cost
- $233K
- Generic Drug Cost
- $42K
Patient Demographics
- Average Patient Age
- 72.1 years
- Avg HCC Risk Score
- 0.87
- Gender Split
- 68% female / 32% male
- Age Distribution
- <65: 19, 65-74: 148, 75-84: 76, 85+: 15
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Andrew Vayonis, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Montelukast Sodium
Montelukast Sodium
320 claims
- Azelastine Hcl
Azelastine Hcl
226 claims
- Fluticasone Propio… 115
Fluticasone Propionate
115 claims
- Flovent Hfa 78
Flovent Hfa
78 claims
- Albuterol Sulfate … 73
Albuterol Sulfate Hfa
73 claims
- Advair Diskus 65
Advair Diskus
65 claims
- Spiriva Respimat 48
Spiriva Respimat
48 claims
- Fluticasone-Salmet… 44
Fluticasone-Salmeterol
44 claims
| Drug | Claims |
|---|---|
| Montelukast Sodium | 320 |
| Azelastine Hcl | 226 |
| Fluticasone Propionate | 115 |
| Flovent Hfa Fluticasone Propionate | 78 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 73 |
| Advair Diskus Fluticasone Propion/Salmeterol | 65 |
| Spiriva Respimat Tiotropium Bromide | 48 |
| Fluticasone-Salmeterol Fluticasone Propion/Salmeterol | 44 |
| Breo Ellipta Fluticasone/Vilanterol | 37 |
| Ventolin Hfa Albuterol Sulfate | 36 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Allergy Physician Overview
How Andrew Vayonis, M.D. fits within the Allergy Physician landscape nationally.
1,019
Allergy Physician Providers in US
49
States with Allergy Physician
755
Avg Claims per Provider
Andrew Vayonis, M.D.'s 1,351 claims are above the specialty average of 755.
Nearby Allergy Physician Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Vayonis.
Niti Agarwal
Blue Bell, PA
Dr. Frank Aloi
M.D.
Beaver, PA
Dr. Barry Asman
M.D.
Monroeville, PA
Dr. Angela D'Urso
MD
Morgantown, PA
Dr. Aparna Daley
MB CHB
Wyomissing, PA
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 Pennsylvania 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.
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Frequently Asked Questions
What is Andrew Vayonis, M.D.'s specialty? ▼
Andrew Vayonis, M.D. specializes in Allergy Physician and practices in Pittsburgh, Pennsylvania. Credentials: M.D..
How much does Andrew Vayonis, M.D. prescribe under Medicare Part D? ▼
In 2023, Andrew Vayonis, M.D. wrote 1,351 Medicare Part D claims totaling $276K in drug costs for 258 beneficiaries.
Where is Andrew Vayonis, M.D. located? ▼
Andrew Vayonis, M.D. is located at 2585 FREEPORT RD STE 210, Pittsburgh, PA, 15238. Phone: (412) 828-3800.
What is Andrew Vayonis, M.D.'s NPI number? ▼
Andrew Vayonis, M.D.'s National Provider Identifier (NPI) is 1194720425, issued on 06/14/2005.
Does Andrew Vayonis, M.D. prescribe more brand-name or generic drugs? ▼
Andrew Vayonis, M.D.'s prescribing is 36% brand-name and 64% generic drugs by claim count, with $233K 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 Andrew Vayonis, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Andrew Vayonis, M.D.'s most frequently prescribed drugs include Montelukast Sodium, Azelastine Hcl, Fluticasone Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Andrew Vayonis, M.D. accept Medicare? ▼
Andrew Vayonis, M.D. appears in CMS Medicare data with 1,351 Part D claims and 258 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Andrew Vayonis, M.D.'s credentials? ▼
Andrew Vayonis, M.D.'s NPI is 1194720425 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.