2026 NPPES data Addiction Medicine (Family Medicine) Physician NPI 1740316181 M.D.
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NEVILLE DUNCAN, M.D.

Addiction Medicine (Family Medicine) Physician in MILWAUKEE, Wisconsin. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
226
Medicare Part D claims · Addiction Medicine (Family Medicine) Physician avg: 1K
What the federal data reveals: NEVILLE DUNCAN, M.D. is a Addiction Medicine (Family Medicine) Physician ([object Object]) practicing in MILWAUKEE, Wisconsin with a Medicare Part D prescribing footprint of 226 claims .

What stands out: NEVILLE DUNCAN, M.D. filed 226 Medicare Part D claims in 2023 across MILWAUKEE, Wisconsin. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

NEVILLE DUNCAN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

NEVILLE DUNCAN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 02/27/2007

NPI 1740316181

Primary specialty

Addiction Medicine (Family Medicine) Physician

Niche

763 US NPIs in this specialty

Medicare Part D claims

226 80% vs specialty avg

2023 prescription claims

Specialty avg: 1,134

Specialty distribution in Wisconsin

How Addiction Medicine (Family Medicine) Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Addiction Medicine (Family Medicine) Physician share within Wisconsin

1. Addiction Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Addiction Medicine (Family Medicine) Physician share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — Addiction Medicine (Family Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Addiction Medicine (Family Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Addiction Medicine (Family Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Addiction Medicine (Family Medicine) Physician) — ABMS / AOA estimate

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).

NEVILLE DUNCAN, M.D. is a Addiction Medicine (Family Medicine) Physician provider practicing in MILWAUKEE, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1740316181. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

NEVILLE DUNCAN, M.D. appears in the CMS NPPES registry as a Addiction Medicine (Family Medicine) Physician provider holding M.D. credentials at 1134 W NORTH AVE FL 2, MILWAUKEE, WI, 53205, with a listed phone of (414) 269-9660. NPI 1740316181 was issued on 02/27/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DUNCAN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 226 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $6K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Addiction Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 763 enrolled providers across 48 states and an average of 1,134 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

1134 W NORTH AVE FL 2
MILWAUKEE, WI 53205

Provider Details

NPI 1740316181
Specialty Addiction Medicine (Family Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 02/27/2007

Hospital and facility affiliations

Facilities where NEVILLE DUNCAN, M.D. 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.

HORIZON HEALTHCARE, 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).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

226
Total Claims
$6K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
226
Total Day Supply
6,131
Generic Drug Cost
$6K

Patient Demographics

Average Patient Age
58.0 years
Avg HCC Risk Score
1.41

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Benztropine Mesylate
28
Metoprolol Tartrate
21
Atorvastatin Calcium
15
Furosemide
15
Allopurinol
11
Amlodipine Besylate
11
Haloperidol
11
Hydrochlorothiazide
11
Lithium Carbonate
11
Pantoprazole Sodium
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Addiction Medicine (Family Medicine) Physician Overview

How NEVILLE DUNCAN, M.D. fits within the Addiction Medicine (Family Medicine) Physician landscape nationally.

763
Addiction Medicine (Family Medicine) Physician Providers in US
48
States with Addiction Medicine (Family Medicine) Physician
1,134
Avg Claims per Provider

NEVILLE DUNCAN, M.D.'s 226 claims are below the specialty average of 1,134.

Nearby Addiction Medicine (Family Medicine) Physician Providers in Wisconsin

Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as DUNCAN.

Compare Addiction Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NEVILLE DUNCAN, M.D.'s specialty?
NEVILLE DUNCAN, M.D. specializes in Addiction Medicine (Family Medicine) Physician and practices in MILWAUKEE, Wisconsin. Credentials: M.D..
How much does NEVILLE DUNCAN, M.D. prescribe under Medicare Part D?
In 2023, NEVILLE DUNCAN, M.D. wrote 226 Medicare Part D claims totaling $6K in drug costs for N/A beneficiaries.
Where is NEVILLE DUNCAN, M.D. located?
NEVILLE DUNCAN, M.D. is located at 1134 W NORTH AVE FL 2, MILWAUKEE, WI, 53205. Phone: (414) 269-9660.
What is NEVILLE DUNCAN, M.D.'s NPI number?
NEVILLE DUNCAN, M.D.'s National Provider Identifier (NPI) is 1740316181, issued on 02/27/2007.
How many Addiction Medicine (Family Medicine) Physician providers are there in the US?
There are 763 Addiction Medicine (Family Medicine) Physician providers across 48 states in the US. The average Addiction Medicine (Family Medicine) Physician provider writes 1,134 Medicare Part D claims per year.
What drugs does NEVILLE DUNCAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, NEVILLE DUNCAN, M.D.'s most frequently prescribed drugs include Benztropine Mesylate, Metoprolol Tartrate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NEVILLE DUNCAN, M.D. accept Medicare?
NEVILLE DUNCAN, M.D. appears in CMS Medicare data with 226 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 NEVILLE DUNCAN, M.D.'s credentials?
NEVILLE DUNCAN, M.D.'s NPI is 1740316181 with credentials M.D.. 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

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