SUN K YI MD
NPI 1447440961
Radiology - Radiation Oncology in Lexington, KY

Q: What is Sun Yi's NPI number?

The NPI number for Sun Yi is 1447440961. It was assigned to this individual provider in the NPPES registry on July 31, 2007.

Q: What is Sun Yi's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Q: Is Sun Yi enrolled in Medicare?

Yes. Sun Yi is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Q: When was this NPI record last updated?

The NPPES record for Sun Yi was last updated on July 1, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since July 31, 2007PECOS EnrolledAccepts Medicare Assignment

96.5/100

CMS Quality Rating

800 ROSE ST, LEXINGTON, KY 40536(859) 257-7618(859) 257-4060 Get Directions Write a Review

NPPES record last updated: July 1, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jul 1, 2025, May 5, 2025, Sep 30, 2022 (3 updates tracked since 2022).

On this page

About Sun K Yi Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SUN K YI MD (NPI 1447440961) is an individual radiation oncology provider in Lexington, Kentucky, licensed in Kentucky (61046) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS, is affiliated with University Of Kentucky Hospital, and maintains a secondary practice location in Sacramento.

NPPES Registry Identity

NPI1447440961

Entity TypeIndividualMale

Primary Taxonomy2085R0001X

Provider Legal NameSUN K YICredential: MD

Location Address800 ROSE STLexington, KY 40536-3386

Mailing Address3400 Data DrRancho Cordova, CA 95670-7956

Phone(859) 257-7618

Fax(859) 257-4060

Sole ProprietorNo

Medical School CMSBoston University School Of MedicineGraduated 2007

Enumeration DateJuly 31, 2007

Last NPPES UpdateJuly 1, 20253 updates tracked since enumeration

NPPES CertifiedJuly 1, 2025

✔ NPI 1447440961 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

Licenses✔ Licensed in KY · 61046✔ Licensed in CA · AFE105634

Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

800 ROSE ST, Lexington, KY 40536

Open in Google Maps ↗

Secondary Practice Location 1

Location 13301 C St Ste 550Sacramento, CA 95816-3386 · Phone (916) 556-3200 · Fax (916) 325-2182

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Sun K Yi Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4486805884

PECOS Enrollment IDI20250507002162

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 18

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Ct guidance for insertion of radiation therapy fields 77014

CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.

249 services35 patients

Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session G6015

Intensity-modulated radiation therapy (IMRT) is a type of cancer treatment. It uses advanced technology to manipulate photon beams of radiation to conform to the shape of a tumor. IMRT allows for the radiation dose to conform more precisely to the three-dimensional shape of the tumor by modulatingâ€”or controllingâ€”the intensity of the radiation beam. This can result in better tumor control and less harm to healthy tissue.

206 services27 patients

Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev G6012

Radiation therapy involves directing high-energy particles to destroy cancer cells. The technique targets 3 or more areas, using custom blocks for precise focus. Tangential ports, wedges, and rotational beams adjust the radiation's path, while compensators balance radiation dose. Electron beam therapy with 6-10 mev energy is used for deep-seated tumors.

104 services16 patients

Calculation of radiation therapy dose 77300

Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.

98 services25 patients

Design and construction of complex radiation treatment device 77334

The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.

88 services27 patients

Radiation treatment management, 5 treatment sessions 77427

Radiation treatment management involves a series of 5 sessions where targeted radiation is used to destroy or shrink cancer cells in your body. Each session is carefully planned to maximize effectiveness while minimizing harm to healthy tissues. You may experience side effects which will be closely monitored and managed for your comfort.

70 services28 patients

Continuing radiation therapy consultation per week 77336

Continuing radiation therapy consultation per week involves regular meetings with your healthcare team. These sessions help monitor your progress, manage side effects, and adjust your treatment plan if necessary. It's a key part of ensuring the effectiveness of your radiation therapy.

60 services36 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

39 services33 patients

Cranial lesion surgery using radiation over multiple sessions 77373

Cranial lesion surgery using radiation involves targeting abnormal tissue in the brain with high-energy rays. This non-invasive procedure is done over multiple sessions to gradually destroy the lesion without harming healthy tissue. It's a precise, painless process often used when traditional surgery isn't possible.

35 services13 patients

Complex radiation therapy planning 77263

Complex radiation therapy planning is a process to determine the most effective way to deliver radiation to a specific area in your body. It involves detailed imaging to map your body's structure, allowing for precise targeting of cancer cells while sparing healthy tissue.

28 services27 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

26 services24 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

24 services24 patients

Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 77290

This procedure involves collecting necessary data to plan the best radiation treatment. It may cover 3 or more areas or any area requiring special attention. Data collection includes imaging scans and tests to understand the disease's extent and to tailor a precise, effective treatment plan.

18 services17 patients

3d radiation therapy planning 77295

3D radiation therapy planning is a procedure that uses computer imaging to map out the area needing treatment. This ensures the radiation targets the disease precisely, while minimizing exposure to surrounding healthy tissues. It's a key step in preparing for effective radiation therapy.

18 services15 patients

Special radiation treatment 77470

Special radiation treatment is a medical procedure that uses high-energy rays to destroy or damage cancer cells. It's a targeted approach that aims to minimize harm to healthy tissues. The treatment duration varies based on individual health conditions.

17 services16 patients

Special medical radiation therapy consultation 77370

A special medical radiation therapy consultation involves discussing the use of high-energy radiation to treat diseases, primarily cancer. It's a chance to understand the process, potential side effects, and benefits. It is a key step in planning your treatment.

13 services11 patients

Management of cranial lesion surgery using radiation over multiple sessions 77435

This procedure involves using targeted radiation to treat a lesion in the brain over several sessions. The radiation destroys the abnormal cells, helping to control or eliminate the lesion. It's a non-invasive treatment, meaning no surgical cuts are made.

12 services12 patients

Design and construction of radiation treatment device for high precision radiation therapy 77338

A radiation treatment device is custom-made for each patient to target cancer cells with high precision. It's designed to focus radiation on the tumor, sparing healthy tissue. This process ensures effective therapy while minimizing side effects.

11 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of Kentucky Hospital

Acute Care Hospitals · Lexington, KY

3/5 CMS rating

OwnershipGovernment - State

CMS Certification Number180067

Location800 Rose StreetLexington, KY 40536 · Fayette County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 40536 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$162.27 typical visit price

range $52.76 – $162.27

Typical copayment $40.56 (range $13.19 – $40.56)

Most-billed visit code 99205

Established Patient

$66.24 typical visit price

range $16.53 – $131.99

Typical copayment $16.56 (range $4.13 – $32.99)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

96.5/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

80.34

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SUSAN R GERKIN MD

Internal Medicine (Nephrology)

800 ROSE ST, MN 564
LEXINGTON, KY 40536

Fayette County (859) 323-5049

DEBORAH J WHITEHURST ARNP

Nurse Practitioner (Pediatrics)

800 ROSE ST, MN-109
LEXINGTON, KY 40536

Fayette County (859) 257-1552

KAREN S PLAYFORTH MD

Obstetrics & Gynecology (Maternal & Fetal Medicine)

800 ROSE ST, C358
LEXINGTON, KY 40536

Fayette County (859) 218-5692

DR. DIANNE WILSON MD

Pathology (Anatomic Pathology)

800 ROSE ST
LEXINGTON, KY 40536

Fayette County (859) 323-5425

VALERIE J NICHOLSON MD

Emergency Medicine

800 ROSE ST
LEXINGTON, KY 40536

Fayette County (859) 323-5901

REBECCA C BOWERS MD

Emergency Medicine

800 ROSE ST
LEXINGTON, KY 40536

Fayette County (859) 323-5901

JUSTINE M YONEDA MD

Radiology (Radiation Oncology)

800 ROSE ST
LEXINGTON, KY 40536

Fayette County (859) 323-6486

MS. MARTHA L. BURNS PA-C

Physician Assistant (Medical)

800 ROSE ST, ROOM CC407 ROACH BUILDING
LEXINGTON, KY 40536

Fayette County (859) 257-6940

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sun Yi's NPI number?

The NPI number for Sun Yi is 1447440961. It was assigned to this individual provider in the NPPES registry on July 31, 2007.

Where is Sun Yi located?

Sun Yi practices at 800 Rose St, Lexington, KY 40536. The listed phone number is (859) 257-7618.

What is Sun Yi's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Sun Yi enrolled in Medicare?

Yes. Sun Yi is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Sun Yi affiliated with any hospitals?

According to CMS data, Sun Yi is affiliated with University Of Kentucky Hospital.

When was this NPI record last updated?

The NPPES record for Sun Yi was last updated on July 1, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.