NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1023708385
Verify on CMS → Meg Duffield
Family Medicine 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 147,760 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
17
Medicare Part D claims · Family Medicine Physician avg: 3K
What the federal data shows
Meg Duffield filed 17 Medicare Part D claims in 2023 as a Family Medicine Physician in Milwaukee, Wisconsin.
- 17
- Part D claims, 2023
- ≥0th
- pct by Part D claim volume (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.
CMS NPPES provider registry desk
NPI 1023708385 · Family Medicine Physician
NPI-10 · ENUM-RECENT · TAX-MEGA · RX-TRACE · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1023708385
- ENUM-RECENT 2023
- TAX-MEGA 148K Family Medicine
- RX-TRACE 17
- BOOK-LIGHT 3,587 in Wisconsin
- PHOTO-ENUM Joseph Metzger · 2023
Meg Duffield's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
17 ≥ 0th percentile 0% of 1,370,886 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Meg Duffield practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Meg Duffield?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
17 100% vs specialty avg
Specialty distribution in Wisconsin
How Family Medicine Physician compares to other specialties among Wisconsin providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Family Medicine Physician. Verify directly:
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 | 1023708385 |
|---|---|
| Specialty | Family Medicine Physician |
| Gender | Female |
| NPI Issued | 05/10/2023 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
17
Total Claims
$632
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 20
- Total Day Supply
- 404
- Generic Drug Cost
- $243
Patient Demographics
- Average Patient Age
- 71.1 years
- Avg HCC Risk Score
- 4.55
Family Medicine Physician Overview
How Meg Duffield fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Meg Duffield's 17 claims are below the specialty average of 3,418.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Duffield, both outside Wisconsin so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2023)
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 Duffield.
One of 3,587 Family Medicine Physician providers enrolled in Wisconsin, 5 are shown here.
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
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Meg Duffield's specialty? ▼
Meg Duffield specializes in Family Medicine Physician and practices in Milwaukee, Wisconsin.
How much does Meg Duffield prescribe under Medicare Part D? ▼
In 2023, Meg Duffield wrote 17 Medicare Part D claims totaling $632 in drug costs for N/A beneficiaries.
Where is Meg Duffield located? ▼
Meg Duffield is located at 2801 W KINNICKINNIC RIVER PKWY, Milwaukee, WI, 53215. Phone: (414) 649-6732.
What is Meg Duffield's NPI number? ▼
Meg Duffield's National Provider Identifier (NPI) is 1023708385, issued on 05/10/2023.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
Does Meg Duffield accept Medicare? ▼
Meg Duffield appears in CMS Medicare data with 17 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 Meg Duffield's credentials? ▼
Meg Duffield's NPI is 1023708385. 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.
- 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.