NPI registry status
Active
2026 NPPES data Dermatopathology Physician NPI 1841795671 MD
Verify on CMS → Di Yan, MD
Dermatopathology Physician in Madison, 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 570 in Dermatopathology 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
11
Medicare Part D claims · Dermatopathology Physician avg: 650
MIPS score
77.4/100
▼ 6 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
Di Yan, MD reported a CMS MIPS final score of 77.4/100 - below the 83.1 national average - and filed 11 Medicare Part D claims in 2023.
- 77.4/100
- MIPS score · -6 vs avg
- 11
- 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.
Di Yan, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
77 24th percentile higher than 24% 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 Di Yan, MD sits
This provider among dermatopathology physician peers
Across the 210 dermatopathology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Di Yan, MD writes more Part D claims than 0% of them and scores higher on MIPS quality than 33% - 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 dermatopathology physician peer from a representative sample of 60; the gold marker is Di Yan, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Di Yan, 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 Di Yan, MD?
Below national averagePrimary specialty
Dermatopathology Physician
Medicare Part D claims
11 98% vs specialty avg
MIPS final score
77.4/100 5.7 pts vs avg
Specialty distribution in Wisconsin
How Dermatopathology Physician compares to other specialties among Wisconsin providers
Medicare quality performance, MIPS
Di Yan, MD's 2023 MIPS final score plotted against the Dermatopathology Physician national average
- MIPS Final Score
- 77.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Dermatopathology Physician) - 77.4/100 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).
Di Yan, MD appears in the CMS NPPES registry as a Dermatopathology Physician provider holding MD credentials at 451 JUNCTION RD, Madison, WI, 53717, with a listed phone of (608) 265-7670. NPI 1841795671 was issued on 03/25/2018.
Medicare Part D records for calendar year 2023 show 11 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $235 in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 77.4/100 for the 2023 performance year (Quality 81.8, Cost 62.1), compared with the national average of 83.1.
Dermatopathology Physician is a narrow specialty nationwide, with 570 enrolled providers across 48 states and an average of 650 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 | 1841795671 |
|---|---|
| Specialty | Dermatopathology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 03/25/2018 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
77.4384
Final Score
Avg: 83.1
81.8371
Quality
62.1241
Cost
77
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Di Yan, 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.
University OF Wisconsin Medical Foundation Inc
Madison, 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).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
11
Total Claims
$235
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 11
- Total Day Supply
- 274
- Brand Drug Cost
- $0
- Generic Drug Cost
- $235
Patient Demographics
- Average Patient Age
- 60.4 years
- Avg HCC Risk Score
- 1.55
Dermatopathology Physician Overview
How Di Yan, MD fits within the Dermatopathology Physician landscape nationally.
570
Dermatopathology Physician Providers in US
48
States with Dermatopathology Physician
650
Avg Claims per Provider
Di Yan, MD's 11 claims are below the specialty average of 650.
Nearby Dermatopathology Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Yan.
Dr. Daniel Bennett
M.D.
Madison, WI
Dr. Kyung Ai Chae
M.D.
Manitowoc, WI
Dr. Matthew Fleming
MD
Milwaukee, WI
Dr. Wei Huang
MD
Madison, WI
Dr. Kelli Hutchens
M.D.
Manitowoc, WI
Compare Dermatopathology 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 Dermatopathology 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
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How insurance networks affect your costs
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Frequently Asked Questions
What is Di Yan, MD's specialty? ▼
Di Yan, MD specializes in Dermatopathology Physician and practices in Madison, Wisconsin. Credentials: MD.
How much does Di Yan, MD prescribe under Medicare Part D? ▼
In 2023, Di Yan, MD wrote 11 Medicare Part D claims totaling $235 in drug costs for N/A beneficiaries.
What is Di Yan, MD's Medicare quality score? ▼
Di Yan, MD has a CMS MIPS Final Score of 77.4/100 (Quality: 81.8, Cost: 62.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Di Yan, MD located? ▼
Di Yan, MD is located at 451 JUNCTION RD, Madison, WI, 53717. Phone: (608) 265-7670.
What is Di Yan, MD's NPI number? ▼
Di Yan, MD's National Provider Identifier (NPI) is 1841795671, issued on 03/25/2018.
How many Dermatopathology Physician providers are there in the US? ▼
There are 570 Dermatopathology Physician providers across 48 states in the US. The average Dermatopathology Physician provider writes 650 Medicare Part D claims per year.
Does Di Yan, MD accept Medicare? ▼
Di Yan, MD appears in CMS Medicare data with 11 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Di Yan, MD's credentials? ▼
Di Yan, MD's NPI is 1841795671 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.