Sun K. Yi, MD
Radiation Oncology Physician · Lexington, KY
Sun K. Yi, MD is a radiation oncology physician with a practice address in Lexington, Kentucky, and NPI 1447440961, issued on Jul 31, 2007. Check the license (Kentucky 61046, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Sun K. Yi
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 61046 KY
AFE105634 CA
Self-reported in NPPES; status is on the state search - Practice location
- 800 Rose St, Lexington, KY 40536
- Phone
- (859) 257-7618
- Enumerated
- Jul 31, 2007
- Record last updated
- Jul 1, 2025
- Fax
- (859) 257-4060
- Medicare enrollment
- Enrolled (PECOS I20250507002162); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2007
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 88 in Kentucky → Look up another NPI →
Also registered at 800 Rose St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Saba Abdulsada, MDInternal Medicine Physician1750906418
- Richard AbneyCertified Registered Nurse Anesthetist1093280760
- Andrew Abraham, MDInternal Medicine Physician1306424627
- Sonu Abraham, M.D.Advanced Heart Failure and Transplant Cardiology Physician1164975835
Verify Sun K. Yi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 61046Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average radiation oncology physician in 2024
145 Medicare Part D claims for 66 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Dexamethasone23 claims
- Clobetasol Propionate21 claims
- Tamsulosin Hcl20 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.
The MIPS final score for 2023 (Medicare payment program): 96.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Kentucky Medical Services Foundation, IncLexington, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sun K. Yi among 88 radiation oncology physician records in Kentucky
Sun K. Yi, 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 2007, is newer than 56% of them.
- NPI issued2007 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated2007 · 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 Sun K. Yi, MD's NPI number?
Sun K. Yi, MD's National Provider Identifier (NPI) is 1447440961, issued on Jul 31, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Sun K. Yi, MD located?
The NPPES record lists a practice address at 800 Rose St, Lexington, KY, 40536. Phone: (859) 257-7618. Providers update this record themselves, so call before visiting.
How can I verify Sun K. Yi, MD's license?
NPPES lists Kentucky license number 61046, 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 Sun K. Yi, MD prescribe under Medicare Part D?
In 2024, Sun K. Yi, MD had 145 Medicare Part D claims for 66 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Sun K. Yi, MD's MIPS final score?
The 2023 MIPS final score is 96.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.