Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Sun K Yi, MD

Individual provider Radiation Oncology Physician · NPI 1447440961

Sun K Yi, MD practises Diagnostic Radiology in Lexington, Kentucky. Graduated from Boston University School of Medicine in 2007, 19 years ago. Practices with Kentucky Medical Services Foundation, Inc, a 952-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California and Kentucky.

Years since qualifying
19
Trained at
Boston University School of Medicine
Licensed in
CA, KY
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

800 Rose St
Lexington, KY 40536-3386
Phone: (859) 257-7618
Fax: (859) 257-4060
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3301 C St Ste 550, Sacramento, CA 95816-3386 — (916) 556-3200

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 61046 (KY)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence AFE105634 (CA)

Record details

NPI number1447440961
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 31, 2007
Last updated in NPPESJuly 1, 2025
Certification dateJuly 1, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolBOSTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Kentucky Medical Services Foundation, Inc — 952 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients137
Services billed 5,897 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Kentucky Medical Services Foundation, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 952 clinicians in the practice; 12 are shown here.

Other providers in Lexington