NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1922299742 RN, APRN-BC, FNP,
Verify on CMS → Judith Williamson, RN, APRN-BC, FNP,
Nurse Practitioner in Peoria, 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 87,700 in Nurse Practitioner, 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
140
Medicare Part D claims · 55 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
72.9/100
▼ 11 pts below national avg 83.5 · Mid-tier
Industry payments
$54.96
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Judith Williamson, RN, APRN-BC, FNP, reported a CMS MIPS final score of 72.9/100 - below the 83.5 national average - and filed 140 Medicare Part D claims in 2023.
- 72.9/100
- MIPS score · -11 vs avg
- 140
- Part D claims, 2023
- 91%
- generic prescribing
- $54.96
- 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.
Judith Williamson, RN, APRN-BC, FNP,'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.
73 10th percentile higher than 10% 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 Judith Williamson, RN, APRN-BC, FNP, sits
This provider among nurse practitioner peers
Across the 13,205 nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Judith Williamson, RN, APRN-BC, FNP, writes more Part D claims than 28% of them and scores higher on MIPS quality than 9% - placing this provider in the lower-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 nurse practitioner peer from a representative sample of 60; the gold marker is Judith Williamson, RN, APRN-BC, FNP,. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Judith Williamson, RN, APRN-BC, FNP,?
Below national averagePrimary specialty
Nurse Practitioner
Medicare Part D claims
140 87% vs specialty avg
MIPS final score
72.9/100 10.6 pts vs avg
Specialty distribution in Illinois
How Nurse Practitioner compares to other specialties among Illinois providers
Medicare quality performance, MIPS
Judith Williamson, RN, APRN-BC, FNP,'s 2023 MIPS final score plotted against the Nurse Practitioner national average
- MIPS Final Score
- 72.9/100
- vs 83.5 national avg · 2023 performance year
MIPS final score (Nurse Practitioner) - 72.9/100 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).
Judith Williamson, RN, APRN-BC, FNP, appears in the CMS NPPES registry as a Nurse Practitioner provider holding RN, APRN-BC, FNP, credentials at 8940 N WOOD SAGE RD, Peoria, IL, 61615, with a listed phone of (309) 243-3000. NPI 1922299742 was issued on 08/06/2007.
Medicare Part D records for calendar year 2023 show 140 prescription claims written by this provider, covering 55 Medicare beneficiaries and totaling roughly $23K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 16.4%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 72.9/100 for the 2023 performance year (Quality 64, Cost 48.9), compared with the 83.5 average among clinicians with a measured score.
Nurse Practitioner is a high-volume specialty nationwide, with 87,700 enrolled providers across 56 states and an average of 1,084 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 | 1922299742 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | RN, APRN-BC, FNP, |
| Gender | Female |
| NPI Issued | 08/06/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
72.9328
Final Score
Measured-score avg: 83.5
63.962
Quality
48.9367
Cost
86
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Judith Williamson, RN, APRN-BC, FNP, 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.
Oncology-Hematology Associates OF Central Illinois P C
Peoria, 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 Judith Williamson, RN, APRN-BC, FNP,. Source: openpaymentsdata.cms.gov.
Total received
$55
Largest payer
ABBVIE 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 Judith Williamson, RN, APRN-BC, FNP,. To verify Judith Williamson, RN, APRN-BC, FNP,'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
Judith Williamson, RN, APRN-BC, FNP, - brand share 9.0%
Nurse Practitioner average
9% brand-name claims vs 91% generic, on 140 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.
140
Total Claims
$23K
Total Drug Cost
55
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 199
- Total Day Supply
- 5,110
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $20K
- Generic Drug Cost
- $2K
- Opioid Claims
- 23 (16.4% rate)
- Antibiotic Claims
- 18
Patient Demographics
- Average Patient Age
- 75.7 years
- Avg HCC Risk Score
- 2.32
- Gender Split
- 69% female / 31% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Judith Williamson, RN, APRN-BC, FNP, prescribes most
Top Medicare Part D drugs by claim count, 2023
- Anastrozole
Anastrozole
25 claims
- Sulfamethoxazole-T…
Sulfamethoxazole-Trimethoprim
15 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
11 claims
| Drug | Claims |
|---|---|
| Anastrozole | 25 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 15 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Judith Williamson, RN, APRN-BC, FNP, fits within the Nurse Practitioner landscape nationally.
87,700
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider
Judith Williamson, RN, APRN-BC, FNP,'s 140 claims are below the specialty average of 1,084.
Nearby Nurse Practitioner Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Williamson.
Dr. Janice Abadilla
FNP-BC
Peoria, IL
Dr. Roseviminda Abano
CNP
Gurnee, IL
Philomena Abebe
Park Ridge, IL
Dr. Milagros Abellera
APN
Chicago, IL
Dr. Edwina Abloh
APN-CNP
Skokie, IL
Compare Nurse Practitioner 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 Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Nurse Practitioner 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 Judith Williamson, RN, APRN-BC, FNP,'s specialty? ▼
Judith Williamson, RN, APRN-BC, FNP, specializes in Nurse Practitioner and practices in Peoria, Illinois. Credentials: RN, APRN-BC, FNP,.
How much does Judith Williamson, RN, APRN-BC, FNP, prescribe under Medicare Part D? ▼
In 2023, Judith Williamson, RN, APRN-BC, FNP, wrote 140 Medicare Part D claims totaling $23K in drug costs for 55 beneficiaries.
What is Judith Williamson, RN, APRN-BC, FNP,'s Medicare quality score? ▼
Judith Williamson, RN, APRN-BC, FNP, has a CMS MIPS Final Score of 72.9/100 (Quality: 64, Cost: 48.9). 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 Judith Williamson, RN, APRN-BC, FNP, located? ▼
Judith Williamson, RN, APRN-BC, FNP, is located at 8940 N WOOD SAGE RD, Peoria, IL, 61615. Phone: (309) 243-3000.
What is Judith Williamson, RN, APRN-BC, FNP,'s NPI number? ▼
Judith Williamson, RN, APRN-BC, FNP,'s National Provider Identifier (NPI) is 1922299742, issued on 08/06/2007.
Does Judith Williamson, RN, APRN-BC, FNP, prescribe more brand-name or generic drugs? ▼
Judith Williamson, RN, APRN-BC, FNP,'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $20K in brand drug costs.
Does Judith Williamson, RN, APRN-BC, FNP, prescribe opioids? ▼
Yes, Judith Williamson, RN, APRN-BC, FNP, had 23 opioid claims in 2023 with an opioid prescribing rate of 16.4%.
How many Nurse Practitioner providers are there in the US? ▼
There are 87,700 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does Judith Williamson, RN, APRN-BC, FNP, prescribe most often? ▼
Based on 2023 Medicare Part D data, Judith Williamson, RN, APRN-BC, FNP,'s most frequently prescribed drugs include Anastrozole, Sulfamethoxazole-Trimethoprim, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Judith Williamson, RN, APRN-BC, FNP, accept Medicare? ▼
Judith Williamson, RN, APRN-BC, FNP, appears in CMS Medicare data with 140 Part D claims and 55 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Judith Williamson, RN, APRN-BC, FNP,'s credentials? ▼
Judith Williamson, RN, APRN-BC, FNP,'s NPI is 1922299742 with credentials RN, APRN-BC, FNP,. 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.