NPI registry status
Active
2026 NPPES data Medical Physician Assistant NPI 1639490758
Verify on CMS → Brian Kayon
Medical Physician Assistant in Madison, Wisconsin.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 40,580 in Medical Physician Assistant, 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
105
Medicare Part D claims · 78 beneficiaries · Medical Physician Assistant avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Brian Kayon filed 105 Medicare Part D claims in 2023 as a Medical Physician Assistant in Madison, Wisconsin.
- 105
- Part D claims, 2023
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.
Brian Kayon's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
105 35th percentile higher than 35% 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
What does the federal data show about Brian Kayon?
Quality data not reportedPrimary specialty
Medical Physician Assistant
Medicare Part D claims
105 90% vs specialty avg
Specialty distribution in Wisconsin
How Medical Physician Assistant compares to other specialties among Wisconsin 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 Medical Physician Assistant. 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).
Brian Kayon appears in the CMS NPPES registry as a Medical Physician Assistant provider at 600 HIGHLAND AVE, Madison, WI, 53792, with a listed phone of (608) 263-0946. NPI 1639490758 was issued on 06/14/2010.
Medicare Part D records for calendar year 2023 show 105 prescription claims written by this provider, covering 78 Medicare beneficiaries and totaling roughly $2K in drug spend.
Medical Physician Assistant is a mid-sized specialty nationwide, with 40,580 enrolled providers across 55 states and an average of 1,077 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 | 1639490758 |
|---|---|
| Specialty | Medical Physician Assistant |
| Gender | Male |
| NPI Issued | 06/14/2010 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
105
Total Claims
$2K
Total Drug Cost
78
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 105
- Total Day Supply
- 933
- Generic Drug Cost
- $1K
- Antibiotic Claims
- 39
Patient Demographics
- Average Patient Age
- 66.5 years
- Avg HCC Risk Score
- 2.00
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 27, 65-74: 29, 75-84: N/A, 85+: N/A
Medical Physician Assistant Overview
How Brian Kayon fits within the Medical Physician Assistant landscape nationally.
40,580
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider
Brian Kayon's 105 claims are below the specialty average of 1,077.
Nearby Medical Physician Assistant Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Kayon.
Dr. Carmen Adams
PA
Sparta, WI
Dr. Darian Adler
PA-C
La Crosse, WI
Dr. Sarah Affeldt
PAC
Madison, WI
Dr. Susan Ahn-Horvath
PA
Marshfield, WI
Olukemi Ajibola
Mequon, WI
Compare Medical Physician Assistant 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 Wisconsin medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Medical Physician Assistant 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.
Healthcare Guides
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How to Find a Doctor
Step-by-step guide to choosing a provider
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Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Wisconsin
Frequently Asked Questions
What is Brian Kayon's specialty? ▼
Brian Kayon specializes in Medical Physician Assistant and practices in Madison, Wisconsin.
How much does Brian Kayon prescribe under Medicare Part D? ▼
In 2023, Brian Kayon wrote 105 Medicare Part D claims totaling $2K in drug costs for 78 beneficiaries.
Where is Brian Kayon located? ▼
Brian Kayon is located at 600 HIGHLAND AVE, Madison, WI, 53792. Phone: (608) 263-0946.
What is Brian Kayon's NPI number? ▼
Brian Kayon's National Provider Identifier (NPI) is 1639490758, issued on 06/14/2010.
How many Medical Physician Assistant providers are there in the US? ▼
There are 40,580 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
Does Brian Kayon accept Medicare? ▼
Brian Kayon appears in CMS Medicare data with 105 Part D claims and 78 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Brian Kayon's credentials? ▼
Brian Kayon's NPI is 1639490758. 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.