NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1922105592 D.O.
Verify on CMS → Joyce Williams, D.O.
Rheumatology Physician in Canton, Ohio.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,200 in Rheumatology Physician, 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
5K
Medicare Part D claims · 621 beneficiaries · Rheumatology Physician avg: 2K
MIPS score
49.6/100
▼ 33 pts below national avg 83.1 · Below average
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Joyce Williams, D.O. reported a CMS MIPS final score of 49.6/100 - below the 83.1 national average - and filed 5,419 Medicare Part D claims in 2023.
- 49.6/100
- MIPS score · -33 vs avg
- 5K
- Part D claims, 2023
- Likely
- board-certified (heuristic)
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.
Joyce Williams, D.O.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
50 4th percentile higher than 4% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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 Joyce Williams, D.O. sits
This provider among rheumatology physician peers
Across the 2,181 rheumatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Joyce Williams, D.O. writes more Part D claims than 92% of them and scores higher on MIPS quality than 5% - 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 rheumatology physician peer from a representative sample of 60; the gold marker is Joyce Williams, D.O.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Joyce Williams, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Joyce Williams, D.O.?
Below national averagePrimary specialty
Rheumatology Physician
Medicare Part D claims
5,419 164% vs specialty avg
MIPS final score
49.6/100 33.5 pts vs avg
Specialty distribution in Ohio
How Rheumatology Physician compares to other specialties among Ohio providers
Medicare quality performance, MIPS
Joyce Williams, D.O.'s 2023 MIPS final score plotted against the Rheumatology Physician national average
- MIPS Final Score
- 49.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Rheumatology Physician) - 49.6/100 vs national avg 83.1
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).
Joyce Williams, D.O. appears in the CMS NPPES registry as a Rheumatology Physician provider holding D.O. credentials at 4160 HOLIDAY ST NW, Canton, OH, 44718, with a listed phone of (330) 492-1747. NPI 1922105592 was issued on 09/17/2006.
Medicare Part D records for calendar year 2023 show 5,419 prescription claims written by this provider, covering 621 Medicare beneficiaries and totaling roughly $2.2 million in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 49.6/100 for the 2023 performance year (Quality 51.6, Cost 96.6), compared with the national average of 83.1.
Rheumatology Physician is a mid-sized specialty nationwide, with 6,200 enrolled providers across 52 states and an average of 2,054 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 | 1922105592 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | D.O. |
| Gender | Female |
| NPI Issued | 09/17/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
49.6256
Final Score
Avg: 83.1
51.5812
Quality
96.6437
Cost
Reporting: Individual
Hospital and facility affiliations
Facilities where Joyce Williams, D.O. 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.
Mass General Brigham Medical Group Western Massachusetts Inc
Northampton, MA
Owensboro Health, Inc
Owensboro, KY
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 - Ohio OMB 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 ~48K Ohio medical licensees in 2023 - they are NOT specific to Joyce Williams, D.O.. To verify Joyce Williams, D.O.'s current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases
OMB 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 Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
5,419
Total Claims
$2.2M
Total Drug Cost
621
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 9,064
- Total Day Supply
- 253,145
- Generic Drug Cost
- $147K
Patient Demographics
- Average Patient Age
- 74.4 years
- Avg HCC Risk Score
- 1.55
- Gender Split
- 74% female / 26% male
- Age Distribution
- <65: 46, 65-74: 287, 75-84: 216, 85+: 72
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Joyce Williams, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
1,239 claims
- Methotrexate
Methotrexate
1,156 claims
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
988 claims
- Sulfasalazine 317
Sulfasalazine
317 claims
- Leflunomide 248
Leflunomide
248 claims
- Folic Acid 205
Folic Acid
205 claims
- Methylprednisolone 188
Methylprednisolone
188 claims
- Leucovorin Calcium 158
Leucovorin Calcium
158 claims
| Drug | Claims |
|---|---|
| Prednisone | 1,239 |
| Methotrexate Methotrexate Sodium | 1,156 |
| Hydroxychloroquine Sulfate | 988 |
| Sulfasalazine | 317 |
| Leflunomide | 248 |
| Folic Acid | 205 |
| Methylprednisolone | 188 |
| Leucovorin Calcium | 158 |
| Alendronate Sodium | 127 |
| Sulfasalazine Dr Sulfasalazine | 86 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Joyce Williams, D.O. fits within the Rheumatology Physician landscape nationally.
6,200
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider
Joyce Williams, D.O.'s 5,419 claims are above the specialty average of 2,054.
Nearby Rheumatology Physician Providers in Ohio
Other clinicians with the same primary specialty enrolled in Ohio, drawn from the same CMS NPPES roster as Williams.
Dr. Abby Abelson
M.D.
Cleveland, OH
Dr. Aya Abugharbyeh
MD
Toledo, OH
Dr. Mohammed Abusamieh
M.D
Toledo, OH
Dr. Tara Adhikari
MD
Blue Ash, OH
Dr. Mohammed Ahmed
M.D.
Toledo, OH
Compare Rheumatology Physician 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 Ohio medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Rheumatology Physician 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
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
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 Ohio
Frequently Asked Questions
What is Joyce Williams, D.O.'s specialty? ▼
Joyce Williams, D.O. specializes in Rheumatology Physician and practices in Canton, Ohio. Credentials: D.O..
How much does Joyce Williams, D.O. prescribe under Medicare Part D? ▼
In 2023, Joyce Williams, D.O. wrote 5,419 Medicare Part D claims totaling $2.2M in drug costs for 621 beneficiaries.
What is Joyce Williams, D.O.'s Medicare quality score? ▼
Joyce Williams, D.O. has a CMS MIPS Final Score of 49.6/100 (Quality: 51.6, Cost: 96.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Joyce Williams, D.O. located? ▼
Joyce Williams, D.O. is located at 4160 HOLIDAY ST NW, Canton, OH, 44718. Phone: (330) 492-1747.
What is Joyce Williams, D.O.'s NPI number? ▼
Joyce Williams, D.O.'s National Provider Identifier (NPI) is 1922105592, issued on 09/17/2006.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,200 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does Joyce Williams, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, Joyce Williams, D.O.'s most frequently prescribed drugs include Prednisone, Methotrexate, Hydroxychloroquine Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Joyce Williams, D.O. accept Medicare? ▼
Joyce Williams, D.O. appears in CMS Medicare data with 5,419 Part D claims and 621 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Joyce Williams, D.O.'s credentials? ▼
Joyce Williams, D.O.'s NPI is 1922105592 with credentials D.O.. 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
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.