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2026 NPPES data Medical Physician Assistant NPI 1851481824 PHYSICIAN ASSISTANT
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William Buckett, PHYSICIAN ASSISTANT

Medical Physician Assistant in Centralia, Illinois.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 40,694 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
3K
Medicare Part D claims · 388 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
94%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
95/100
▲ 12 pts above national avg 83.5 · Exceptional
Industry payments
$40.95
2 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

William Buckett, PHYSICIAN ASSISTANT reported a CMS MIPS final score of 95/100 - above the 83.5 national average - and filed 2,889 Medicare Part D claims in 2024.

95/100
MIPS score · +12 vs avg
3K
Part D claims, 2024
94%
generic prescribing
$40.95
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.

Federal trust snapshot

What official records show about William Buckett, PHYSICIAN ASSISTANT

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1851481824), first enumerated 10/13/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 2,889 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 95/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Reported

    Industry payment transparency

    $40.95 in reported industry payments (2 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • State context

    State board disciplinary context

    Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not William Buckett, PHYSICIAN ASSISTANT's individual license status. Verify directly with the state medical board.

    Source: IDFPR annual report 2023

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1851481824 · Medical Physician Assistant

NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-ELITE · RX-MID · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1851481824
  • ENUM-LEGACY 2006
  • TAX-MID 41K Medical Physician
  • MIPS-ELITE 95/100
  • RX-MID 2,889
  • BOOK-LIGHT 797 in Illinois
  • PHOTO-FINISH Monica Abbott, PA-C · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

William Buckett, PHYSICIAN ASSISTANT'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.

95 ≥ 78th percentile 78% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). Below this entry. 90+: 189,403 measured providers (42%). This entry sits in this band. This provider 0 100 every measured MIPS clinician, bucketed by value

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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where William Buckett, PHYSICIAN ASSISTANT sits

This provider among medical physician assistant peers

Across the 7,147 medical physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, William Buckett, PHYSICIAN ASSISTANT writes more Part D claims than 91% of them and scores higher on MIPS quality than 77% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.949.974.899.8Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 57William Buckett, PHYSICIAN ASSISTANT, Part D claim volume, percentile in specialty: 91 · MIPS quality, percentile: 77
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one medical physician assistant peer from a representative sample of 60; the gold marker is William Buckett, PHYSICIAN ASSISTANT. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about William Buckett, PHYSICIAN ASSISTANT?

High performer (top quartile)

NPI registry status

Active

Issued 10/13/2006

NPI 1851481824

Primary specialty

Medical Physician Assistant

Mid-sized

40,694 US NPIs in this specialty

Medicare Part D claims

2,889 154% vs specialty avg

2024 prescription claims

Specialty avg: 1,139

MIPS final score

95/100 11.5 pts vs avg

Exceptional band

vs 83.5 national avg

Specialty distribution in Illinois

How Medical Physician Assistant compares to other specialties among Illinois providers

Illinois providers
Clinical Social Worker5.2%Physical Therapist4.9%Mental Health Counselor4.5%Speech-Language Pathologist4.2%Student in an Organized Heal…4.1%Pharmacist4.1%Medical Physician Assistant0.3%
Largest specialties in Illinois (% of in-state providers)

Medicare quality performance, MIPS

William Buckett, PHYSICIAN ASSISTANT's 2023 MIPS final score plotted against the Medical Physician Assistant national average

High performer (top quartile)
MIPS Final Score
95/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%95%
MIPS final score (Medical Physician Assistant) - 95/100 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).

Practice Address

1054 MARTIN LUTHER KING DR
Centralia, IL 62801
(618) 533-8700

Provider Details

NPI 1851481824
Specialty Medical Physician Assistant
Credentials PHYSICIAN ASSISTANT
Gender Male
NPI Issued 10/13/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

95.012
Final Score
Measured-score avg: 83.5
80.0239
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where William Buckett, PHYSICIAN ASSISTANT 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.

Physician Services Corporation OF Southern Illinois Inc
Mount Vernon, IL

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 William Buckett, PHYSICIAN ASSISTANT. Source: openpaymentsdata.cms.gov.

Total received

$41

Largest payer

PFIZER 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 - Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 - they are NOT specific to William Buckett, PHYSICIAN ASSISTANT. To verify William Buckett, PHYSICIAN ASSISTANT's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR 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 Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

William Buckett, PHYSICIAN ASSISTANT - brand share 5.0%
Medical Physician Assistant average

5% brand-name claims vs 94% generic, on 2,889 2024 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 2024.

2,889
Total Claims
$219K
Total Drug Cost
388
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,180.1
Total Day Supply
122,132
Brand vs Generic
5% brand / 94% generic
Brand Drug Cost
$141K
Generic Drug Cost
$77K

Patient Demographics

Average Patient Age
70.2 years
Avg HCC Risk Score
1.58
Gender Split
56% female / 44% male
Age Distribution
<65: 96, 65-74: 133, 75-84: 119, 85+: 40

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What William Buckett, PHYSICIAN ASSISTANT prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Memantine Hcl
 256
Carbidopa-Levodopa
Carbidopa/Levodopa
233
Primidone
 215
Levetiracetam
 184
Donepezil Hcl
 146
Gabapentin
 138
Lamotrigine
 132
Lacosamide
 114
Alprazolam
 98
Pregabalin
 87

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

More Medical Physician Assistant in IL → All providers in Illinois → Compare specialties →

Medical Physician Assistant Overview

How William Buckett, PHYSICIAN ASSISTANT fits within the Medical Physician Assistant landscape nationally.

40,694
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,139
Avg Claims per Provider

William Buckett, PHYSICIAN ASSISTANT's 2,889 claims are above the specialty average of 1,139.

Nationwide Medical Physician Assistant peers with similar MIPS or enrollment year

Two federal-record peer sets for Buckett, both outside Illinois so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (95 here).

Lindsay Rut 95 KS Sarah Remington 95 CO Monica Abbott 95 OK Al Febre 95 FL

Same NPPES enumeration year (2006)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Melissa Moore Roseburg, OR Kimberly Wachter Baltimore, MD Cristine Fernandez Santa Maria, CA Erica Krol Kalamazoo, MI

Nearby Medical Physician Assistant Providers in Illinois

Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Buckett.

One of 797 Medical Physician Assistant providers enrolled in Illinois, 5 are shown here.

Ahmad Abdelghani
PA-C
Schaumburg, IL
Jeneson Abraham
P.A.
Chicago, IL
Rosalva Acosta
PA-C
Gurnee, IL
Samantha Adamczyk
PA-C
Naperville, IL
Kenneth Adams
PA-C
Chillicothe, IL

Compare Medical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is William Buckett, PHYSICIAN ASSISTANT's specialty? ▼
William Buckett, PHYSICIAN ASSISTANT specializes in Medical Physician Assistant and practices in Centralia, Illinois. Credentials: PHYSICIAN ASSISTANT.
How much does William Buckett, PHYSICIAN ASSISTANT prescribe under Medicare Part D? ▼
In 2024, William Buckett, PHYSICIAN ASSISTANT wrote 2,889 Medicare Part D claims totaling $219K in drug costs for 388 beneficiaries.
What is William Buckett, PHYSICIAN ASSISTANT's Medicare quality score? ▼
William Buckett, PHYSICIAN ASSISTANT has a CMS MIPS Final Score of 95/100 (Quality: 80). 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 William Buckett, PHYSICIAN ASSISTANT located? ▼
William Buckett, PHYSICIAN ASSISTANT is located at 1054 MARTIN LUTHER KING DR, Centralia, IL, 62801. Phone: (618) 533-8700.
What is William Buckett, PHYSICIAN ASSISTANT's NPI number? ▼
William Buckett, PHYSICIAN ASSISTANT's National Provider Identifier (NPI) is 1851481824, issued on 10/13/2006.
Does William Buckett, PHYSICIAN ASSISTANT prescribe more brand-name or generic drugs? ▼
William Buckett, PHYSICIAN ASSISTANT's prescribing is 5% brand-name and 94% generic drugs by claim count, with $141K in brand drug costs.
How many Medical Physician Assistant providers are there in the US? ▼
There are 40,694 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,139 Medicare Part D claims per year.
What drugs does William Buckett, PHYSICIAN ASSISTANT prescribe most often? ▼
Based on 2024 Medicare Part D data, William Buckett, PHYSICIAN ASSISTANT's most frequently prescribed drugs include Memantine Hcl, Carbidopa-Levodopa, Primidone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Buckett, PHYSICIAN ASSISTANT accept Medicare? ▼
William Buckett, PHYSICIAN ASSISTANT appears in CMS Medicare data with 2,889 Part D claims and 388 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Buckett, PHYSICIAN ASSISTANT's credentials? ▼
William Buckett, PHYSICIAN ASSISTANT's NPI is 1851481824 with credentials PHYSICIAN ASSISTANT. 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 (2024). 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 August 2026 (NPPES) / 2024 (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 editorial process.

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 August 2026.