NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1235191511 MD
Verify on CMS → Daniel Duffy, MD
Family Medicine Physician in Cedarburg, 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 150,125 in Family Medicine 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
11K
Medicare Part D claims · 721 beneficiaries · Family Medicine Physician avg: 4K
MIPS score
75.8/100
▼ 8 pts below national avg 83.5 · Above neutral
Industry payments
$29.0K
41 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Daniel Duffy, MD reported a CMS MIPS final score of 75.8/100 - below the 83.5 national average - and filed 11,001 Medicare Part D claims in 2024.
- 75.8/100
- MIPS score · -8 vs avg
- 11K
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥15th
- pct among measured MIPS (lower-bound band)
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 Daniel Duffy, MD
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 1235191511), first enumerated 04/04/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 11,001 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 75.8/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- 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
$29.0K in reported industry payments (41 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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.
Compare Duffy with other Family Medicine Physician providers
Same primary specialty, same federal CMS NPPES roster.
All 6 Family Medicine Physician providers in Cedarburg, WI →
Also enrolled in Wisconsin
- Dr. Ghudran Abdulal, MD New Berlin, WI
- Dr. Vanessa Abejuela-Matt, D.O. Mount Pleasant, WI
- Dr. Benjamin Abeyta, M.D. Wauwatosa, WI
- Dr. Emily Abeyta, MD Waukesha, WI
- Dr. Islam Abo Al Nadie, MD Milwaukee, WI
- Dr. Jeanette Abraham, MD Weston, WI
Other specialties in Cedarburg: Speech-Language Pathologist (22) · Occupational Therapist (19) · Professional Counselor (18) · Physical Therapist (17)
CMS NPPES provider registry desk
NPI 1235191511 · Family Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-BELOW · RX-HEAVY · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1235191511
- ENUM-LEGACY 2006
- TAX-MEGA 150K Family Medicine
- MIPS-BELOW 75.8/100
- RX-HEAVY 11K claims
- BOOK-LIGHT 3,629 in Wisconsin
- PHOTO-FINISH Alexander Cook, MD · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Emily Baker Butl…
Emily Baker Butler, DO
75.7 MIPS pts
- Rosanna Catalasa…
Rosanna Catalasan, M.D.
75.7 MIPS pts
- Duffy · this pro…
Duffy · this provider
75.8 MIPS pts
- Alexander Cook, …
Alexander Cook, MD
75.8 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Daniel Duffy, MD'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.
76 ≥ 15th percentile 15% of 454,083 measured providers are in lower value bands
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 Daniel Duffy, MD sits
This provider among family medicine physician peers
Across the 21,266 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Daniel Duffy, MD writes more Part D claims than 91% of them and scores higher on MIPS quality than 17% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is Daniel Duffy, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Daniel Duffy, 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 Daniel Duffy, MD?
Below national averagePrimary specialty
Family Medicine Physician
Medicare Part D claims
11,001 213% vs specialty avg
MIPS final score
75.8/100 7.7 pts vs avg
Specialty distribution in Wisconsin
How Family Medicine Physician compares to other specialties among Wisconsin providers
Medicare quality performance, MIPS
Daniel Duffy, MD's 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 75.8/100
- vs 83.5 national avg · 2023 performance year
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
Provider Details
| NPI | 1235191511 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/04/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75.7531
Final Score
Measured-score avg: 83.5
78.169
Quality
57.6399
Cost
76
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Daniel Duffy, 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.
Columbia St Marys Hospital Milwaukee Inc
Cedarburg, 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).
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 Daniel Duffy, MD. Source: openpaymentsdata.cms.gov.
Total received
$29.0K
Largest payer
Axsome Therapeutics, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
11,001
Total Claims
$1.3M
Total Drug Cost
721
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 25,848.933
- Total Day Supply
- 754,350
- Generic Drug Cost
- $191K
- Opioid Claims
- 153 (1.4% rate)
- Antibiotic Claims
- 161
Patient Demographics
- Average Patient Age
- 73.5 years
- Avg HCC Risk Score
- 0.99
- Gender Split
- 52% female / 48% male
- Age Distribution
- <65: 54, 65-74: 360, 75-84: 216, 85+: 91
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Daniel Duffy, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
732 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
414 claims
- Levothyroxine Sodium
Levothyroxine Sodium
394 claims
- Irbesartan
Irbesartan
336 claims
- Amlodipine Besylate
Amlodipine Besylate
317 claims
- Lisinopril
Lisinopril
302 claims
- Bupropion Xl 288
Bupropion Xl
288 claims
- Omeprazole 285
Omeprazole
285 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 732 |
| Rosuvastatin Calcium | 414 |
| Levothyroxine Sodium | 394 |
| Irbesartan | 336 |
| Amlodipine Besylate | 317 |
| Lisinopril | 302 |
| Bupropion Xl Bupropion Hcl | 288 |
| Omeprazole | 285 |
| Gabapentin | 274 |
| Tamsulosin Hcl | 260 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Daniel Duffy, MD fits within the Family Medicine Physician landscape nationally.
150,125
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,519
Avg Claims per Provider
Daniel Duffy, MD's 11,001 claims are above the specialty average of 3,519.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Duffy, both outside Wisconsin so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (75.8 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Duffy.
One of 3,629 Family Medicine Physician providers enrolled in Wisconsin, 11 are shown on this page.
Dr. Sarada Abraham
M.D.
Oconomowoc, WI
Dr. Kirsten Abramson
MD
Madison, WI
Alexandra Adams
MD PHD
Madison, WI
David Adams
Madison, WI
Dr. Reginald Adams
D.O.
Racine, WI
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Daniel Duffy, MD's specialty? ▼
Daniel Duffy, MD specializes in Family Medicine Physician and practices in Cedarburg, Wisconsin. Credentials: MD.
How much does Daniel Duffy, MD prescribe under Medicare Part D? ▼
In 2024, Daniel Duffy, MD wrote 11,001 Medicare Part D claims totaling $1.3M in drug costs for 721 beneficiaries.
What is Daniel Duffy, MD's Medicare quality score? ▼
Daniel Duffy, MD has a CMS MIPS Final Score of 75.8/100 (Quality: 78.2, Cost: 57.6). 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 Daniel Duffy, MD located? ▼
Daniel Duffy, MD is located at W62 N179 WASHINGTON AVE, Cedarburg, WI, 53012. Phone: (262) 375-3555.
What is Daniel Duffy, MD's NPI number? ▼
Daniel Duffy, MD's National Provider Identifier (NPI) is 1235191511, issued on 04/04/2006.
Does Daniel Duffy, MD prescribe opioids? ▼
Yes, Daniel Duffy, MD had 153 opioid claims in 2024 with an opioid prescribing rate of 1.4%.
How many Family Medicine Physician providers are there in the US? ▼
There are 150,125 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,519 Medicare Part D claims per year.
What drugs does Daniel Duffy, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Daniel Duffy, MD's most frequently prescribed drugs include Atorvastatin Calcium, Rosuvastatin Calcium, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Daniel Duffy, MD accept Medicare? ▼
Daniel Duffy, MD appears in CMS Medicare data with 11,001 Part D claims and 721 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Daniel Duffy, MD's credentials? ▼
Daniel Duffy, MD's NPI is 1235191511 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 (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
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.