2026 NPPES data Allergy Physician NPI 1194720425 M.D.
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ANDREW VAYONIS, M.D.

Allergy Physician in PITTSBURGH, Pennsylvania. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
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
What the federal data reveals: ANDREW VAYONIS, M.D. is a Allergy Physician ([object Object]) practicing in PITTSBURGH, Pennsylvania with a Medicare Part D prescribing footprint of 1K claims across 258 beneficiaries — 36% brand-name prescribing .

What stands out: ANDREW VAYONIS, M.D. filed 1,351 Medicare Part D claims in 2023 across PITTSBURGH, Pennsylvania. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

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).

ANDREW VAYONIS, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/14/2005

NPI 1194720425

Primary specialty

Allergy Physician

Niche

1,019 US NPIs in this specialty

Medicare Part D claims

1,351 79% vs specialty avg

2023 prescription claims

Specialty avg: 755

Specialty distribution in Pennsylvania

How Allergy Physician compares to other specialties among Pennsylvania providers

Pennsylvania providers

Allergy Physician share within Pennsylvania

1. Allergy Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Allergy Physician share within Pennsylvania

Specialty board-certification context

Estimated specialty board-certified rate — Allergy Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Allergy Physician ABMS/AOA estimate

Est. board-certified rate (Allergy Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Allergy Physician) — ABMS / AOA estimate

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. is a Allergy Physician provider practicing in PITTSBURGH, Pennsylvania, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1194720425. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what VAYONIS most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

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. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

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

2585 FREEPORT RD STE 210
PITTSBURGH, PA 15238

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%
Specialty average (est.)

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.

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.

Compare Allergy Physician nationally: see state-by-state distribution →

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

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