2026 NPPES data Endodontics NPI 1164651907 D.D.S., M.S.
Verify on CMS →

JAMES DUNCAN, D.D.S., M.S.

Endodontics in HOUSTON, Texas. 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
37
Medicare Part D claims · 29 beneficiaries · Endodontics avg: 116
Industry payments
$13.96
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JAMES DUNCAN, D.D.S., M.S. is a Endodontics ([object Object]) practicing in HOUSTON, Texas with a Medicare Part D prescribing footprint of 37 claims across 29 beneficiaries . Industry payments of $13.96 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: JAMES DUNCAN, D.D.S., M.S. filed 37 Medicare Part D claims in 2023 across HOUSTON, Texas. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

JAMES DUNCAN, D.D.S., M.S. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/14/2009

NPI 1164651907

Primary specialty

Endodontics

Mid-sized

5,856 US NPIs in this specialty

Medicare Part D claims

37 68% vs specialty avg

2023 prescription claims

Specialty avg: 116

Specialty distribution in Texas

How Endodontics compares to other specialties among Texas providers

Texas providers

Endodontics share within Texas

1. Endodontics42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endodontics share within Texas

Specialty board-certification context

Estimated specialty board-certified rate — Endodontics (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Endodontics ABMS/AOA estimate

Est. board-certified rate (Endodontics) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Endodontics) — 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).

JAMES DUNCAN, D.D.S., M.S. is a Endodontics provider practicing in HOUSTON, Texas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.D.S., M.S.. NPI: 1164651907. 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.

JAMES DUNCAN, D.D.S., M.S. appears in the CMS NPPES registry as a Endodontics provider holding D.D.S., M.S. credentials at 5020 FM 1960 RD W STE B1, HOUSTON, TX, 77069, with a listed phone of (281) 580-9058. NPI 1164651907 was issued on 07/14/2009. 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 37 prescription claims written by this provider, covering 29 Medicare beneficiaries and totaling roughly $117 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.

Endodontics is a mid-sized specialty nationwide, with 5,856 enrolled providers across 53 states and an average of 116 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

5020 FM 1960 RD W STE B1
HOUSTON, TX 77069

Provider Details

NPI 1164651907
Specialty Endodontics
Credentials D.D.S., M.S.
Gender Male
NPI Issued 07/14/2009

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 JAMES DUNCAN, D.D.S., M.S.. Source: openpaymentsdata.cms.gov.

Total received

$14

Largest payer

Dentsply Sirona 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.

License & disciplinary context — Texas TMB 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 — they are NOT specific to JAMES DUNCAN, D.D.S., M.S.. To verify JAMES DUNCAN, D.D.S., M.S.'s current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

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

37
Total Claims
$117
Total Drug Cost
29
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
37
Total Day Supply
200
Brand Drug Cost
$0
Generic Drug Cost
$117
Antibiotic Claims
33

Patient Demographics

Average Patient Age
74.8 years
Avg HCC Risk Score
0.99
Age Distribution
<65: 0, 65-74: 14, 75-84: 15, 85+: 0

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Amoxicillin
25

* 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, D.D.S., M.S. fits within the Endodontics landscape nationally.

5,856
Endodontics Providers in US
53
States with Endodontics
116
Avg Claims per Provider

JAMES DUNCAN, D.D.S., M.S.'s 37 claims are below the specialty average of 116.

Nearby Endodontics Providers in Texas

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

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

Frequently Asked Questions

What is JAMES DUNCAN, D.D.S., M.S.'s specialty?
JAMES DUNCAN, D.D.S., M.S. specializes in Endodontics and practices in HOUSTON, Texas. Credentials: D.D.S., M.S..
How much does JAMES DUNCAN, D.D.S., M.S. prescribe under Medicare Part D?
In 2023, JAMES DUNCAN, D.D.S., M.S. wrote 37 Medicare Part D claims totaling $117 in drug costs for 29 beneficiaries.
Where is JAMES DUNCAN, D.D.S., M.S. located?
JAMES DUNCAN, D.D.S., M.S. is located at 5020 FM 1960 RD W STE B1, HOUSTON, TX, 77069. Phone: (281) 580-9058.
What is JAMES DUNCAN, D.D.S., M.S.'s NPI number?
JAMES DUNCAN, D.D.S., M.S.'s National Provider Identifier (NPI) is 1164651907, issued on 07/14/2009.
How many Endodontics providers are there in the US?
There are 5,856 Endodontics providers across 53 states in the US. The average Endodontics provider writes 116 Medicare Part D claims per year.
What drugs does JAMES DUNCAN, D.D.S., M.S. prescribe most often?
Based on 2023 Medicare Part D data, JAMES DUNCAN, D.D.S., M.S.'s most frequently prescribed drugs include Amoxicillin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JAMES DUNCAN, D.D.S., M.S. accept Medicare?
JAMES DUNCAN, D.D.S., M.S. appears in CMS Medicare data with 37 Part D claims and 29 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JAMES DUNCAN, D.D.S., M.S.'s credentials?
JAMES DUNCAN, D.D.S., M.S.'s NPI is 1164651907 with credentials D.D.S., M.S.. 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