NPI registry status
Active
2026 NPPES data Medical Oncology Physician NPI 1265483291 MD
Verify on CMS → Stuart Wong, MD
Medical Oncology Physician in Milwaukee, Wisconsin.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,815 in Medical Oncology 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
211
Medicare Part D claims · 59 beneficiaries · Medical Oncology Physician avg: 689
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
80.5/100
▼ 3 pts below national avg 83.1 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Stuart Wong, MD reported a CMS MIPS final score of 80.5/100 - below the 83.1 national average - and filed 211 Medicare Part D claims in 2023.
- 80.5/100
- MIPS score · -3 vs avg
- 211
- Part D claims, 2023
- 78%
- generic prescribing
- 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.
Stuart Wong, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
81 33rd percentile higher than 33% 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 Stuart Wong, MD sits
This provider among medical oncology physician peers
Across the 1,527 medical oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Stuart Wong, MD writes more Part D claims than 27% of them and scores higher on MIPS quality than 32% - 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 medical oncology physician peer from a representative sample of 60; the gold marker is Stuart Wong, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Stuart Wong, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 Stuart Wong, MD?
Near national averagePrimary specialty
Medical Oncology Physician
Medicare Part D claims
211 69% vs specialty avg
MIPS final score
80.5/100 2.6 pts vs avg
Specialty distribution in Wisconsin
How Medical Oncology Physician compares to other specialties among Wisconsin providers
Medicare quality performance, MIPS
Stuart Wong, MD's 2023 MIPS final score plotted against the Medical Oncology Physician national average
- MIPS Final Score
- 80.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Medical Oncology Physician) - 80.5/100 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).
Stuart Wong, MD appears in the CMS NPPES registry as a Medical Oncology Physician provider holding MD credentials at 9200 W WISCONSIN AVE, Milwaukee, WI, 53226, with a listed phone of (414) 805-6800. NPI 1265483291 was issued on 05/15/2006.
Medicare Part D records for calendar year 2023 show 211 prescription claims written by this provider, covering 59 Medicare beneficiaries and totaling roughly $435K in drug spend, split 22% brand-name and 78% generic by claim count, with an opioid prescribing rate of 7.1%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 80.5/100 for the 2023 performance year (Quality 66.2, Cost 68.6), compared with the national average of 83.1.
Medical Oncology Physician is a narrow specialty nationwide, with 3,815 enrolled providers across 53 states and an average of 689 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 | 1265483291 |
|---|---|
| Specialty | Medical Oncology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/15/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
80.4671
Final Score
Avg: 83.1
66.2426
Quality
68.6477
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Stuart Wong, MD 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.
The Medical College OF Wisconsin Inc
Milwaukee, WI
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Stuart Wong, MD - brand share 22.0%
Medical Oncology Physician average
22% brand-name claims vs 78% generic, on 211 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.
211
Total Claims
$435K
Total Drug Cost
59
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 232
- Total Day Supply
- 4,141
- Brand vs Generic
- 22% brand / 78% generic
- Brand Drug Cost
- $432K
- Generic Drug Cost
- $3K
- Opioid Claims
- 15 (7.1% rate)
Patient Demographics
- Average Patient Age
- 72.9 years
- Avg HCC Risk Score
- 2.19
- Gender Split
- 22% female / 78% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Stuart Wong, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ondansetron Hcl
Ondansetron Hcl
43 claims
- Dexamethasone
Dexamethasone
36 claims
- Olanzapine
Olanzapine
21 claims
- Mekinist 11
Mekinist
11 claims
- Tafinlar 11
Tafinlar
11 claims
| Drug | Claims |
|---|---|
| Ondansetron Hcl | 43 |
| Dexamethasone | 36 |
| Olanzapine | 21 |
| Mekinist Trametinib Dimethyl Sulfoxide | 11 |
| Tafinlar Dabrafenib Mesylate | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Medical Oncology Physician Overview
How Stuart Wong, MD fits within the Medical Oncology Physician landscape nationally.
3,815
Medical Oncology Physician Providers in US
53
States with Medical Oncology Physician
689
Avg Claims per Provider
Stuart Wong, MD's 211 claims are below the specialty average of 689.
Nearby Medical Oncology Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Wong.
Dr. Kamal Kant Singh Abbi
M.D.
Green Bay, WI
Syed Abutalib
Milwaukee, WI
Dr. Jacob Adashek
DO
Germantown, WI
Dr. Mark Albertini
MD
Madison, WI
Lynn Baatz
Manitowoc, WI
Compare Medical Oncology 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 Wisconsin medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Medical Oncology 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.
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Frequently Asked Questions
What is Stuart Wong, MD's specialty? ▼
Stuart Wong, MD specializes in Medical Oncology Physician and practices in Milwaukee, Wisconsin. Credentials: MD.
How much does Stuart Wong, MD prescribe under Medicare Part D? ▼
In 2023, Stuart Wong, MD wrote 211 Medicare Part D claims totaling $435K in drug costs for 59 beneficiaries.
What is Stuart Wong, MD's Medicare quality score? ▼
Stuart Wong, MD has a CMS MIPS Final Score of 80.5/100 (Quality: 66.2, Cost: 68.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Stuart Wong, MD located? ▼
Stuart Wong, MD is located at 9200 W WISCONSIN AVE, Milwaukee, WI, 53226. Phone: (414) 805-6800.
What is Stuart Wong, MD's NPI number? ▼
Stuart Wong, MD's National Provider Identifier (NPI) is 1265483291, issued on 05/15/2006.
Does Stuart Wong, MD prescribe more brand-name or generic drugs? ▼
Stuart Wong, MD's prescribing is 22% brand-name and 78% generic drugs by claim count, with $432K in brand drug costs.
Does Stuart Wong, MD prescribe opioids? ▼
Yes, Stuart Wong, MD had 15 opioid claims in 2023 with an opioid prescribing rate of 7.1%.
How many Medical Oncology Physician providers are there in the US? ▼
There are 3,815 Medical Oncology Physician providers across 53 states in the US. The average Medical Oncology Physician provider writes 689 Medicare Part D claims per year.
What drugs does Stuart Wong, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Stuart Wong, MD's most frequently prescribed drugs include Ondansetron Hcl, Dexamethasone, Olanzapine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Stuart Wong, MD accept Medicare? ▼
Stuart Wong, MD appears in CMS Medicare data with 211 Part D claims and 59 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Stuart Wong, MD's credentials? ▼
Stuart Wong, MD's NPI is 1265483291 with credentials MD. 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.