NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1457833741 PA-C
Verify on CMS → Haley Mason, PA-C
Physician Assistant in York, 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
284
Medicare Part D claims · 135 beneficiaries · Physician Assistant avg: 790
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86.2/100
▲ 3 pts above national avg 83.5 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Haley Mason, PA-C reported a CMS MIPS final score of 86.2/100 - above the 83.5 national average - and filed 284 Medicare Part D claims in 2023.
- 86.2/100
- MIPS score · +3 vs avg
- 284
- Part D claims, 2023
- 86%
- generic prescribing
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.
Haley Mason, 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.
86 49th percentile higher than 49% 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 Haley Mason, 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, Haley Mason, PA-C writes more Part D claims than 55% of them and scores higher on MIPS quality than 49% - placing this provider in the high-volume, lower-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 Haley Mason, 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 Haley Mason, PA-C?
High performer (top quartile)Primary specialty
Physician Assistant
Medicare Part D claims
284 64% vs specialty avg
MIPS final score
86.2/100 2.7 pts vs avg
Specialty distribution in Pennsylvania
How Physician Assistant compares to other specialties among Pennsylvania providers
Medicare quality performance, MIPS
Haley Mason, PA-C's 2023 MIPS final score plotted against the Physician Assistant national average
- MIPS Final Score
- 86.2/100
- vs 83.5 national avg · 2023 performance year
MIPS final score (Physician Assistant) - 86.2/100 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).
Haley Mason, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 1701 INNOVATION DR, York, PA, 17408, with a listed phone of (717) 843-8623. NPI 1457833741 was issued on 09/03/2018.
Medicare Part D records for calendar year 2023 show 284 prescription claims written by this provider, covering 135 Medicare beneficiaries and totaling roughly $19K in drug spend, split 14% brand-name and 86% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 86.2/100 for the 2023 performance year (Quality 84.5, Cost 65.6), 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 | 1457833741 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 09/03/2018 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
86.1822
Final Score
Measured-score avg: 83.5
84.5369
Quality
65.6231
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where Haley Mason, 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.
Pinnacle Health Hospitalist Services LLC
York, 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 Haley Mason, PA-C. To verify Haley Mason, 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
Haley Mason, PA-C - brand share 14.0%
Physician Assistant average
14% brand-name claims vs 86% generic, on 284 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.
284
Total Claims
$19K
Total Drug Cost
135
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 285
- Total Day Supply
- 5,903
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $16K
- Generic Drug Cost
- $2K
- Antibiotic Claims
- 54
Patient Demographics
- Average Patient Age
- 73.5 years
- Avg HCC Risk Score
- 2.23
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 21, 65-74: 53, 75-84: 34, 85+: 27
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Haley Mason, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
20 claims
- Cefuroxime
Cefuroxime
17 claims
- Furosemide
Furosemide
17 claims
- Metoprolol Succinate
Metoprolol Succinate
17 claims
- Atorvastatin Calcium
Atorvastatin Calcium
15 claims
- Eliquis
Eliquis
11 claims
| Drug | Claims |
|---|---|
| Prednisone | 20 |
| Cefuroxime Cefuroxime Axetil | 17 |
| Furosemide | 17 |
| Metoprolol Succinate | 17 |
| Atorvastatin Calcium | 15 |
| Eliquis Apixaban | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Haley Mason, 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
Haley Mason, PA-C's 284 claims are below 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 Mason.
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 Haley Mason, PA-C's specialty? ▼
Haley Mason, PA-C specializes in Physician Assistant and practices in York, Pennsylvania. Credentials: PA-C.
How much does Haley Mason, PA-C prescribe under Medicare Part D? ▼
In 2023, Haley Mason, PA-C wrote 284 Medicare Part D claims totaling $19K in drug costs for 135 beneficiaries.
What is Haley Mason, PA-C's Medicare quality score? ▼
Haley Mason, PA-C has a CMS MIPS Final Score of 86.2/100 (Quality: 84.5, Cost: 65.6). 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 Haley Mason, PA-C located? ▼
Haley Mason, PA-C is located at 1701 INNOVATION DR, York, PA, 17408. Phone: (717) 843-8623.
What is Haley Mason, PA-C's NPI number? ▼
Haley Mason, PA-C's National Provider Identifier (NPI) is 1457833741, issued on 09/03/2018.
Does Haley Mason, PA-C prescribe more brand-name or generic drugs? ▼
Haley Mason, PA-C's prescribing is 14% brand-name and 86% generic drugs by claim count, with $16K 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 Haley Mason, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Haley Mason, PA-C's most frequently prescribed drugs include Prednisone, Cefuroxime, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Haley Mason, PA-C accept Medicare? ▼
Haley Mason, PA-C appears in CMS Medicare data with 284 Part D claims and 135 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Haley Mason, PA-C's credentials? ▼
Haley Mason, PA-C's NPI is 1457833741 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.