James Duncan, DDS
General Practice Dentistry · Portland, TX
James Duncan, DDS is a general practice dentistry with a practice address in Portland, Texas, and NPI 1609081488, issued on May 14, 2007. Check the license (Texas 18635, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Duncan
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 18635 TX
Self-reported in NPPES; status is on the state search - Practice location
- 240 Reliant Dr, Portland, TX 78374
- Phone
- (361) 643-3030
- Enumerated
- May 14, 2007
- Entity
- Type 1 · individual
Verify James Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 18635Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
64% fewer Medicare Part D claims than the average general practice dentistry in 2024
30 Medicare Part D claims for 20 beneficiaries, against an average of 84 among the 68,591 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $117.43
2 payments, mostly food and beverage; the largest payer was Zimvie Inc.. The 40,968 providers of this specialty with any payment received $593.28 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
7 general practice dentistry records list a Portland practice address
They are 7 of the 189 NPPES records with a Portland practice address, and 9,830 general practice dentistry records in Texas.
All 7 in Portland → All 9,830 in Texas → Every provider in Portland →
Other general practice dentistry records in Texas
- Eugene Aaron, D.D.S., P.A.League City, TX1699733048
- Alphonsus Abah, DDSDallas, TX1184324105
- Curtis AbateSan Antonio, TX1033279286
- Yetunde Abayomi, D.D.SMansfield, TX1992814776
- Bassam Abazid, DDSSan Antonio, TX1639339724
- Emeka Abazie, DDSCoppell, TX1578657763
- Sravan Abbaraju, D.M.DFort Hood, TX1235417767
- Yamini AbbarajuHouston, TX1528247780
- Zehra Abbas, DMDHouston, TX1972740629
- Mohamed Abbass, DDSDallas, TX1801181102
Common questions
What is James Duncan, DDS's NPI number?
James Duncan, DDS's National Provider Identifier (NPI) is 1609081488, issued on May 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James Duncan, DDS located?
The NPPES record lists a practice address at 240 Reliant Dr, Portland, TX, 78374. Phone: (361) 643-3030. Providers update this record themselves, so call before visiting.
How can I verify James Duncan, DDS's license?
NPPES lists Texas license number 18635, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does James Duncan, DDS prescribe under Medicare Part D?
In 2024, James Duncan, DDS had 30 Medicare Part D claims for 20 beneficiaries; the average among general practice dentistry prescribers was 84. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
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 Aug 27, 2026.