NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1851932032 PA-C
Verify on CMS → Kayley McMahon, PA-C
Physician Assistant 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 150,974 in 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
2K
Medicare Part D claims · 360 beneficiaries · Physician Assistant avg: 790
Generic prescribing
84%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
93.8/100
▲ 10 pts above national avg 83.5 · Exceptional
Industry payments
$809.58
48 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Kayley McMahon, PA-C reported a CMS MIPS final score of 93.8/100 - above the 83.5 national average - and filed 2,292 Medicare Part D claims in 2023.
- 93.8/100
- MIPS score · +10 vs avg
- 2K
- Part D claims, 2023
- 84%
- generic prescribing
- $809.58
- 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.
Kayley McMahon, PA-C's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
94 Top 31% higher than 69% of 454,083 measured providers
Each bar is a band; taller bars hold more measured providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Kayley McMahon, PA-C sits
This provider among physician assistant peers
Across the 26,497 physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Kayley McMahon, PA-C writes more Part D claims than 93% of them and scores higher on MIPS quality than 71% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one physician assistant peer from a representative sample of 60; the gold marker is Kayley McMahon, PA-C. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Kayley McMahon, PA-C?
High performer (top quartile)Primary specialty
Physician Assistant
Medicare Part D claims
2,292 190% vs specialty avg
MIPS final score
93.8/100 10.3 pts vs avg
Specialty distribution in Pennsylvania
How Physician Assistant compares to other specialties among Pennsylvania providers
Medicare quality performance, MIPS
Kayley McMahon, PA-C's 2023 MIPS final score plotted against the Physician Assistant national average
- MIPS Final Score
- 93.8/100
- vs 83.5 national avg · 2023 performance year
MIPS final score (Physician Assistant) - 93.8/100 vs national avg 83.5
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).
Kayley McMahon, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 4815 LIBERTY AVE STE 250, Pittsburgh, PA, 15224, with a listed phone of (412) 578-1152. NPI 1851932032 was issued on 09/30/2019.
Medicare Part D records for calendar year 2023 show 2,292 prescription claims written by this provider, covering 360 Medicare beneficiaries and totaling roughly $1.4 million in drug spend, split 15% brand-name and 84% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 93.8/100 for the 2023 performance year (Quality 85.1), compared with the 83.5 average among clinicians with a measured score.
Physician Assistant is a high-volume specialty nationwide, with 150,974 enrolled providers across 56 states and an average of 790 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 | 1851932032 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 09/30/2019 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
93.7848
Final Score
Measured-score avg: 83.5
85.0781
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Kayley McMahon, PA-C 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.
Allegheny Clinic
Jefferson Hills, 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).
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 Kayley McMahon, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$810
Largest payer
Janssen Biotech, Inc.
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.
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 Kayley McMahon, PA-C. To verify Kayley McMahon, PA-C'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 · Typical
Kayley McMahon, PA-C - brand share 15.0%
Physician Assistant average
15% brand-name claims vs 84% generic, on 2,292 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.
2,292
Total Claims
$1.4M
Total Drug Cost
360
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,101
- Total Day Supply
- 118,980
- Brand vs Generic
- 15% brand / 84% generic
- Brand Drug Cost
- $1.3M
- Generic Drug Cost
- $68K
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 1.58
- Gender Split
- 72% female / 28% male
- Age Distribution
- <65: 41, 65-74: 153, 75-84: 133, 85+: 33
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Kayley McMahon, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Methotrexate
Methotrexate
420 claims
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
362 claims
- Prednisone
Prednisone
252 claims
- Alendronate Sodium
Alendronate Sodium
175 claims
- Leflunomide 122
Leflunomide
122 claims
- Prolia 85
Prolia
85 claims
- Allopurinol 73
Allopurinol
73 claims
- Methylprednisolone 64
Methylprednisolone
64 claims
| Drug | Claims |
|---|---|
| Methotrexate Methotrexate Sodium | 420 |
| Hydroxychloroquine Sulfate | 362 |
| Prednisone | 252 |
| Alendronate Sodium | 175 |
| Leflunomide | 122 |
| Prolia Denosumab | 85 |
| Allopurinol | 73 |
| Methylprednisolone | 64 |
| Meloxicam | 63 |
| Folic Acid | 58 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Kayley McMahon, PA-C fits within the Physician Assistant landscape nationally.
150,974
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider
Kayley McMahon, PA-C's 2,292 claims are above the specialty average of 790.
Nearby Physician Assistant Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as McMahon.
Matthew Abad
Lansdowne, PA
Dr. Ariane Abadi
PA-C
Philadelphia, PA
Dr. Rama Abbireddy
PA
Bethlehem, PA
Dr. Marianne Abdalah
PA
Sewickley, PA
Dr. Safiyya Abdul-Ghani
PA
Oaks, PA
Compare 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 Pennsylvania medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby 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.
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Frequently Asked Questions
What is Kayley McMahon, PA-C's specialty? ▼
Kayley McMahon, PA-C specializes in Physician Assistant and practices in Pittsburgh, Pennsylvania. Credentials: PA-C.
How much does Kayley McMahon, PA-C prescribe under Medicare Part D? ▼
In 2023, Kayley McMahon, PA-C wrote 2,292 Medicare Part D claims totaling $1.4M in drug costs for 360 beneficiaries.
What is Kayley McMahon, PA-C's Medicare quality score? ▼
Kayley McMahon, PA-C has a CMS MIPS Final Score of 93.8/100 (Quality: 85.1). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Kayley McMahon, PA-C located? ▼
Kayley McMahon, PA-C is located at 4815 LIBERTY AVE STE 250, Pittsburgh, PA, 15224. Phone: (412) 578-1152.
What is Kayley McMahon, PA-C's NPI number? ▼
Kayley McMahon, PA-C's National Provider Identifier (NPI) is 1851932032, issued on 09/30/2019.
Does Kayley McMahon, PA-C prescribe more brand-name or generic drugs? ▼
Kayley McMahon, PA-C's prescribing is 15% brand-name and 84% generic drugs by claim count, with $1.3M in brand drug costs.
How many Physician Assistant providers are there in the US? ▼
There are 150,974 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does Kayley McMahon, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Kayley McMahon, PA-C's most frequently prescribed drugs include Methotrexate, Hydroxychloroquine Sulfate, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kayley McMahon, PA-C accept Medicare? ▼
Kayley McMahon, PA-C appears in CMS Medicare data with 2,292 Part D claims and 360 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kayley McMahon, PA-C's credentials? ▼
Kayley McMahon, PA-C's NPI is 1851932032 with credentials PA-C. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
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.