James Arthur Knight, MD
Radiation Oncology Physician · Lexington, KY
James Arthur Knight, MD is a radiation oncology physician with a practice address in Lexington, Kentucky, and NPI 1871121095, issued on Apr 1, 2020. Check the license (Kentucky R5549, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- James Arthur Knight
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- R5549 KY
D0103630 MD
MD600004447 DC
Self-reported in NPPES; status is on the state search - Practice location
- University OF Kentucky, Lexington, KY 40536
- Phone
- (859) 323-2636
- Enumerated
- Apr 1, 2020
- Record last updated
- Jul 1, 2025
- Medicare enrollment
- Enrolled (PECOS I20250613003489); may accept Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 88 in Kentucky → Look up another NPI →
Also registered at University OF Kentucky
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Arthur Knight in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license R5549Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average radiation oncology physician in 2024
28 Medicare Part D claims for 18 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
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: $505.85
3 payments; by number, the most common kind was food and beverage; the largest payer was Novocure Inc. The 3,275 providers of this specialty with any payment received $1,897.85 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 2 group practices
- Johns Hopkins UniversityWashington, DC
- Johns Hopkins UniversityWashington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Arthur Knight among 88 radiation oncology physician records in Kentucky
James Arthur Knight, MD is one of 88 radiation oncology physician records with a practice address in Kentucky. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 93% of them.
- NPI issued2020 · 93% of these records are older, 1% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated2020 · median 2004 among the 68 with a school on file
- Record last updated2025 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Kentucky
There are 88 radiation oncology physician records in Kentucky.
All 88 in Kentucky → Every provider in Lexington → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Mark Bernard, M.D.Lexington, KY 405361932468246
- Denise FabianLexington, KY 405361992183065
- Jonathan Feddock, MDLexington, KY 405361164685012
- Aradhana Kaushal, MDLexington, KY 405361629240627
- Ronald McGarry, M.D., PH.D.Lexington, KY 405361144284894
- Pushpa Patel, MDLexington, KY 405361710905054
- Marcus Randall, MDLexington, KY 405361487641700
- Marguerite Sellitti, MDLexington, KY 405361508890534
Common questions
What is James Arthur Knight, MD's NPI number?
James Arthur Knight, MD's National Provider Identifier (NPI) is 1871121095, issued on Apr 1, 2020. An NPI identifies a provider in billing; it is not a license.
Where is James Arthur Knight, MD located?
The NPPES record lists a practice address at University OF Kentucky, Lexington, KY, 40536. Phone: (859) 323-2636. Providers update this record themselves, so call before visiting.
How can I verify James Arthur Knight, MD's license?
NPPES lists Kentucky license number R5549, 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 Arthur Knight, MD prescribe under Medicare Part D?
In 2024, James Arthur Knight, MD had 28 Medicare Part D claims for 18 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.