James Dale Duncan, M.D.
Internal Medicine Physician · Danville, KY
James Dale Duncan, M.D. is an internal medicine physician with a practice address in Danville, Kentucky, and NPI 1598725020, issued on Mar 27, 2006. Check the license (Kentucky 35597, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- James Dale Duncan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35597 KY
Self-reported in NPPES; status is on the state search - Practice location
- 478 Whirlaway Dr Ste 100, Danville, KY 40422
- Phone
- (859) 236-6613
- Enumerated
- Mar 27, 2006
- Record last updated
- Dec 15, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (859) 236-3558
- Medicaid ID
- 64010093 KY
- Medicare enrollment
- Enrolled (PECOS I20091116000356); accepts Medicare assignment
- Medical or professional school
- University Of Kentucky College Of Medicine, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 478 Whirlaway Dr Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Cornelius, PACPhysician Assistant1235235607
- John Horn, M.DInternal Medicine Physician1326008772
- Heather Smith, APRNFamily Nurse Practitioner1528513892
Verify James Dale Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 35597Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.3 times the Medicare Part D claims of the average internal medicine physician in 2024
20,145 Medicare Part D claims for 454 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 749 claims were for opioids.
Most prescribed
- Atorvastatin Calcium803 claims
- Levothyroxine Sodium727 claims
- Amlodipine Besylate687 claims
- Lisinopril553 claims
- Gabapentin520 claims
- Pantoprazole Sodium457 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: $528.21
30 payments; by number, the most common kind was food and beverage; the largest payer was Iti, Inc. (d/b/a Intra-Cellular Therapies, Inc.). The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Kentuckyone Health Medical Group IncLexington, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
15 internal medicine physician records list a practice address in Danville
They are 15 of the 545 NPPES records with a practice address in Danville, and 1,526 internal medicine physician records in Kentucky.
All 15 in Danville → All 1,526 in Kentucky → Every provider in Danville →
Other internal medicine physician records in Kentucky
- June AbadillaJackson, KY1811975683
- Bilal Abaid, M.D.Louisville, KY1144960444
- Joseph Abayev, MDLouisville, KY1437503752
- Syed Abbas, MDLouisville, KY1285081398
- Saba Abdulsada, MDLexington, KY1750906418
- Melecio Abordo, M.D.Jackson, KY1871590935
- Michelle Aboud, MDLouisville, KY1891709515
- Andrew Abraham, MDLexington, KY1306424627
- Wilmer Abshier, M.D.Owensboro, KY1225020621
- Kamana Acharya, M.DElizabethtown, KY1124647359
Common questions
What is James Dale Duncan, M.D.'s NPI number?
James Dale Duncan, M.D.'s National Provider Identifier (NPI) is 1598725020, issued on Mar 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Dale Duncan, M.D. located?
The NPPES record lists a practice address at 478 Whirlaway Dr Ste 100, Danville, KY, 40422. Phone: (859) 236-6613. Providers update this record themselves, so call before visiting.
How can I verify James Dale Duncan, M.D.'s license?
NPPES lists Kentucky license number 35597, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James Dale Duncan, M.D. prescribe under Medicare Part D?
In 2024, James Dale Duncan, M.D. had 20,145 Medicare Part D claims for 454 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.