2026 NPPES data Endodontics NPI 1366482655 DDS, MSD
Verify on CMS →

James Duncan, DDS, MSD

Endodontics in Indianapolis, Indiana.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 5,974 in Endodontics, 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
564
Medicare Part D claims · 359 beneficiaries · Endodontics avg: 124

What the federal data shows

James Duncan, DDS, MSD filed 564 Medicare Part D claims in 2024 as an Endodontics in Indianapolis, Indiana.

564
Part D claims, 2024
≥65th
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.

Federal trust snapshot

What official records show about James Duncan, DDS, MSD

Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1366482655), first enumerated 06/07/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 564 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • 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.

CMS NPPES provider registry desk

NPI 1366482655 · Endodontics

NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM

  • NPI-10 1366482655
  • ENUM-LEGACY 2006
  • TAX-MID 6K Endodontics
  • RX-LIGHT 564
  • BOOK-THIN 85 in Indiana
  • PHOTO-ENUM Gerard Simoneaux, D.… · 2006

James Duncan, DDS, MSD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2024, across all CMS prescribers nationally

564 ≥ 65th percentile 65% of 1,416,883 prescribers are in lower value bands

0–200: 679,947 prescribers (48%). Below this entry. 200–400: 188,835 prescribers (13%). Below this entry. 400–600: 95,866 prescribers (7%). This entry sits in this band. 600–800: 60,107 prescribers (4%). Above this entry. 800–1,000: 43,043 prescribers (3%). Above this entry. 1,000–1,200: 33,612 prescribers (2%). Above this entry. 1,200–1,400: 27,889 prescribers (2%). Above this entry. 1,400–1,600: 23,183 prescribers (2%). Above this entry. 1,600–1,800: 19,917 prescribers (1%). Above this entry. 1,800–2,000: 17,585 prescribers (1%). Above this entry. 2K+: 226,899 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 · 2024

What does the federal data show about James Duncan, DDS, MSD?

Quality data not reported

NPI registry status

Active

Issued 06/07/2006

NPI 1366482655

Primary specialty

Endodontics

Mid-sized

5,974 US NPIs in this specialty

Medicare Part D claims

564 355% vs specialty avg

2024 prescription claims

Specialty avg: 124

Specialty distribution in Indiana

How Endodontics compares to other specialties among Indiana providers

Indiana providers
Behavior Technician14.3%Student in an Organized Heal…4.8%Pharmacist4.3%Clinical Social Worker4.2%Family Nurse Practitioner4.2%Mental Health Counselor4.1%Endodontics0.1%
Largest specialties in Indiana (% of in-state 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 Endodontics. 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

1010 E 86TH ST
Indianapolis, IN 46240

Provider Details

NPI 1366482655
Specialty Endodontics
Credentials DDS, MSD
Gender Male
NPI Issued 06/07/2006

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

564
Total Claims
$4K
Total Drug Cost
359
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
572
Total Day Supply
3,990
Brand Drug Cost
$0
Generic Drug Cost
$4K
Antibiotic Claims
469

Patient Demographics

Average Patient Age
72.8 years
Avg HCC Risk Score
0.96
Gender Split
65% female / 35% male
Age Distribution
<65: 24, 65-74: 200, 75-84: 115, 85+: 20

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What James Duncan, DDS, MSD prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Cephalexin
338
Methylprednisolone
85
Clindamycin Hcl
49
Metronidazole
37
Amoxicillin
33

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

Endodontics Overview

How James Duncan, DDS, MSD fits within the Endodontics landscape nationally.

5,974
Endodontics Providers in US
53
States with Endodontics
124
Avg Claims per Provider

James Duncan, DDS, MSD's 564 claims are above the specialty average of 124.

Nationwide Endodontics peers with similar MIPS or enrollment year

Two federal-record peer sets for Duncan, both outside Indiana so the neighborhoods are not geographic containment.

Same NPPES enumeration year (2006)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nearby Endodontics Providers in Indiana

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

One of 85 Endodontics providers enrolled in Indiana, 5 are shown here.

Compare Endodontics nationally: see state-by-state distribution →

Frequently Asked Questions

What is James Duncan, DDS, MSD's specialty?
James Duncan, DDS, MSD specializes in Endodontics and practices in Indianapolis, Indiana. Credentials: DDS, MSD.
How much does James Duncan, DDS, MSD prescribe under Medicare Part D?
In 2024, James Duncan, DDS, MSD wrote 564 Medicare Part D claims totaling $4K in drug costs for 359 beneficiaries.
Where is James Duncan, DDS, MSD located?
James Duncan, DDS, MSD is located at 1010 E 86TH ST, Indianapolis, IN, 46240. Phone: (317) 844-3396.
What is James Duncan, DDS, MSD's NPI number?
James Duncan, DDS, MSD's National Provider Identifier (NPI) is 1366482655, issued on 06/07/2006.
How many Endodontics providers are there in the US?
There are 5,974 Endodontics providers across 53 states in the US. The average Endodontics provider writes 124 Medicare Part D claims per year.
What drugs does James Duncan, DDS, MSD prescribe most often?
Based on 2024 Medicare Part D data, James Duncan, DDS, MSD's most frequently prescribed drugs include Cephalexin, Methylprednisolone, Clindamycin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does James Duncan, DDS, MSD accept Medicare?
James Duncan, DDS, MSD appears in CMS Medicare data with 564 Part D claims and 359 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify James Duncan, DDS, MSD's credentials?
James Duncan, DDS, MSD's NPI is 1366482655 with credentials DDS, MSD. 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.
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.