Dr. Yong I. Cha, MD, PhD

  • Louisville, KY
  • Radiation oncologist
NPI1568635332PAC ID7517109150
Medicare services, 2024
2,177
Medicare patients, 2024
231
Part D claims, 2024
66
Publications
7
Clinical trials
2
Practice address
4960 Norton Healthcare Blvd, Louisville, KY 40241
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Norton Brownsboro Hospital-Operating Room - HOPD

Acute Care Hospital outpatient department · Louisville, Kentucky

See all 4 affiliations

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Dr. Yong I. Cha is a radiation oncologist in Louisville, Kentucky

Dr. Cha practices at Norton Brownsboro Hospital-Operating Room - HOPD in Louisville, Kentucky.

Dr. Cha's NPI, 1568635332, was assigned on April 11, 2008. Dr. Cha graduated from Vanderbilt University School Of Medicine in 2008. Dr. Cha holds Kentucky license 46430.

NPI and contact details
Medicare PAC ID
7517109150
NPI enumeration date
April 11, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
44
Medical school graduation
2008

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Yong I. Cha practices at Norton Brownsboro Hospital-Operating Room - HOPD in Louisville, Kentucky

Dr. Cha's primary practice is Norton Brownsboro Hospital-Operating Room - HOPD, at 4960 Norton Healthcare Blvd, Louisville, KY 40241.

  • Norton Brownsboro Hospital-Operating Room - HOPD
    4960 Norton Healthcare Blvd, Louisville, KY 40241

Source: Dmand AI Affiliation Data

Dr. Yong I. Cha is affiliated with 3 sites of care and 1 medical group

Dr. Cha's primary practice is Norton Brownsboro Hospital-Operating Room - HOPD in Louisville, Kentucky. Dr. Cha is also affiliated with Norton Hospital. The medical group on file is Norton Cancer Institute. Dmand AI also links Dr. Cha to 1 more group practice or clinic, named with a free account.

Norton Brownsboro Hospital-Operating Room - HOPDAcute Care Hospital outpatient department · Louisville, KentuckyPrimary
Norton HospitalAcute care hospital, Louisville, KYNorton Cancer InstitutePrimary care group, Louisville, KY1 group practice or clinicName with a free account
See all 4 affiliations for Dr. Cha

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Yong I. Cha's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cha practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Norton Brownsboro Hospital-Operating Room - HOPDAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Yong I. Cha is one of 90 radiation oncologists in Kentucky

Radiation oncology is Dr. Cha's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Cha is board certified in radiation oncology by the American Board of Radiology. Dmand AI has Dr. Cha's licenses on file in 4 states: Kentucky, California, Minnesota and Wisconsin.

Specialties and state licenses

  • Radiation oncology, KentuckyPrimaryLicense 46430 · 2013 to 2026 · taxonomy 2085R0001X
  • California license1999 to 2018
  • Minnesota license1998 to 2017
  • Wisconsin license2000 to 2017

Clinical focus

Dmand AI lists bone cancer radiation, brain cancer radiation, breast cancer radiation, cancer radiation-upper GI, head & neck cancer radiation, lung cancer radiation, lymphoma radiation and pancreatic cancer radiation among the conditions Dr. Cha treats.

Radiation oncologists near Dr. Cha

Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Yong I. Cha billed Medicare for 2,177 services in 2024

CMS data shows 2,177 Medicare services from Dr. Cha across 18 procedure codes in 2024, for 231 Medicare patients. Medicare paid $174,294 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 20242,177
Medicare patients231
Paid by Medicare$174,294
Procedure codes18

Dr. Cha's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 1,6762024: 1,85811%
Office and hospital visits
2023: 1482024: 17418%
Other services
2023: 1522024: 1455%

Dr. Cha compared with the Kentucky median for radiation oncologists, 2024

  • Dr. Cha
  • Kentucky median
Medicare services
2,177vs 1,09699% above
Medicare patients
231vs 15648% above
Part D claims
27vs 4439% below

Medians across 89 radiation oncologists in Kentucky with Dmand AI profiles that report each measure.

Dr. Cha's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Cha and other radiation oncologists in Kentucky.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Yong I. Cha treated 231 Medicare patients in 2024, average age 74

CMS counts 231 Medicare patients who saw Dr. Cha in 2024. The largest group is 65 to 74, with 112 patients. 75% of them have cancer, and 75% have high blood pressure. 11% are also on Medicaid. Their average risk score is 2.35, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Cha's median patient age at 74, with 41% women.

Medicare patients, 2024231
Average age74
Average risk score2.35
Also on Medicaid11%

Dr. Cha's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Cha's Medicare patients by sex, 2024

  • Women10545%
  • Men12655%

Chronic conditions among Dr. Cha's Medicare patients, 2024

  1. Cancer75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Arthritis48%
  5. COPD47%
  6. Ischemic heart disease43%
  7. Anxiety32%
  8. Chronic kidney disease32%

Share of Medicare patients with each condition. A patient can have several.

Dr. Cha's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women41%
  • Men59%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Yong I. Cha wrote 66 Medicare Part D claims in 2024

In 2024, Dr. Cha wrote 66 Medicare Part D claims for 42 patients. 97% of them were for generic drugs. CMS names the drug for 27 of them, across 2 drugs with 11 or more claims each, at $305 in total drug cost. In 2023, CMS named 31 claims across 2 drugs.

Part D claims, 202466
Drugs named by CMS2
Total drug cost$305
Part D patients42

Dr. Cha's Part D claims by kind of drug, 2024

  • Generic64 claims97%
  • Brand-name and other2 claims3%

Dr. Cha's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 312024: 2713%

Drugs named by CMS: 2 in 2024, 2 in 2023.

See all prescribing by Dr. Cha

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Yong I. Cha scored 84 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Cha for performance year 2024, reported as part of a group. Dr. Cha accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Cha as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Cha's MIPS scores, performance year 2024

  • 84of 100Final score
  • 73.7of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 60of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

For MedTech and pharma teams

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Dr. Yong I. Cha has 7 publications on record

Dmand AI links 7 papers to Dr. Cha, published from 2011 to 2013. Dr. Cha's most frequent co-authors are David Roy Gius, Michael F. Bassetti and Adam P. Dicker, MD.

Papers7
Years published2011 to 2013

Dr. Cha's most frequent co-authors

Recent publications by Dr. Cha

See all 7 publications and co-authors

See who Dr. Cha researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Cha works with, so you can find a warm path to the right radiation oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Yong I. Cha has worked on 2 clinical trials

Dmand AI links Dr. Cha to 2 clinical trials, 2 of them phase 2 studies. 1 is still active or recruiting. Conditions studied include Carcinoma, Non-Small-Cell Lung, Urinary Bladder Neoplasms and Carcinoma, Bronchogenic. NRG Oncology sponsors the most, 2.

Conditions in Dr. Cha's trials

  • Carcinoma, Non-Small-Cell Lung
  • Urinary Bladder Neoplasms
  • Carcinoma, Bronchogenic
  • Urinary Bladder Diseases

Investigators on the most trials with Dr. Cha

Recent clinical trials with Dr. Cha

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Yong I. Cha received $4,863 in industry payments from 2016 to 2025

CMS Open Payments shows 15 general payments to Dr. Cha from 7 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 81% of the total. Brainlab, Inc. paid the most, $3,941.

General payments to Dr. Cha by program year, 2016 to 2025

General payments to Dr. Cha by kind, 2016 to 2025

$4.9Kin total
  • Travel and lodging$3,95181%
  • Food and beverage$70314%
  • Honoraria$2094%

Companies that paid Dr. Cha the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Cha

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Yong I. Cha graduated from Vanderbilt University School Of Medicine

Dr. Cha graduated from Vanderbilt University School Of Medicine in 2008.

  1. Medical schoolVanderbilt University School Of Medicine
  2. Board certified in radiation oncologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Dr. Yong I. Cha accepts plans from 18 insurance carriers

Dr. Cha is in network with 18 carriers, including Blue Cross Blue Shield of Michigan, Elevance and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • Elevance
  • United Healthcare
  • HCSC
  • Aetna
  • Aspirus Health Plan
  • Blue Cross Blue Shield of Massachusetts
  • Humana
  • +10 more carriersWith a free account

Plan types Dr. Cha accepts, by number of carriers

  1. PPO11
  2. Medicare8
  3. HMO7
  4. POS4
  5. EPO3
  6. Medicaid2

Source: Dmand AI Insurance Network Data

Sources for Dr. Yong I. Cha's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Yong I. Cha

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Yong I. Cha's NPI number?

Dr. Yong I. Cha's NPI number is 1568635332. It was assigned on April 11, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Yong I. Cha?

Dr. Yong I. Cha is a radiation oncologist in Louisville, Kentucky. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).

Where does Dr. Yong I. Cha practice?

Dr. Cha practices at 4960 Norton Healthcare Blvd, Louisville, KY 40241. Dr. Cha's primary practice is Norton Brownsboro Hospital-Operating Room - HOPD in Louisville, Kentucky. Dmand AI also links Dr. Cha to 1 group practice or clinic.

What is Dr. Yong I. Cha's medical license number?

Dr. Cha holds Kentucky license 46430, one of the licenses on file in 4 states.

Which states has Dr. Yong I. Cha been licensed in?

Dmand AI has state licenses on file for Dr. Cha in Kentucky (2013 to 2026), California (1999 to 2018), Minnesota (1998 to 2017) and Wisconsin (2000 to 2017).

Which hospitals is Dr. Yong I. Cha affiliated with?

Dr. Cha is affiliated with Norton Hospital.

What medical group is Dr. Yong I. Cha part of?

Dr. Cha is linked to Norton Cancer Institute.

Does Dr. Yong I. Cha accept Medicare?

Yes. CMS data shows Dr. Cha billed Medicare for 2,177 services in 2024, and Dr. Cha accepts Medicare assignment.

Does Dr. Yong I. Cha offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Cha as offering telehealth services.

What is Dr. Yong I. Cha's MIPS score?

Dr. Cha's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Yong I. Cha see?

CMS counts 231 Medicare patients who saw Dr. Cha in 2024, with an average age of 74.

Is Dr. Yong I. Cha board certified?

Yes. Dr. Cha is board certified in radiation oncology by the American Board of Radiology.

What services does Dr. Yong I. Cha bill to Medicare?

In 2024, Dr. Cha's most billed Medicare services were radiation oncology (77014), radiation oncology (77300) and radiation oncology (77334).

Where did Dr. Yong I. Cha go to medical school?

Dr. Cha graduated from Vanderbilt University School Of Medicine in 2008.

What drugs does Dr. Yong I. Cha prescribe most?

In 2024 Medicare Part D data, Dr. Cha's most prescribed drugs by claims were Tamsulosin HCl and Lidocaine HCl Viscous.

Has Dr. Yong I. Cha received payments from drug or device companies?

CMS Open Payments shows $4,863 in general payments to Dr. Cha from 7 companies from 2016 to 2025. The largest total came from Brainlab, Inc.

How long has Dr. Yong I. Cha been practicing?

Dr. Cha graduated from medical school in 2008, 18 years ago.

Does Dr. Yong I. Cha do research?

Dmand AI links 7 publications to Dr. Cha, published from 2011 to 2013. Dr. Cha has worked on 2 clinical trials.

Who does Dr. Yong I. Cha publish with?

Dr. Cha's most frequent co-authors are David Roy Gius (2 shared papers), Michael F. Bassetti (1 shared paper) and Adam P. Dicker, MD (1 shared paper).

What insurance does Dr. Yong I. Cha accept?

Dr. Cha is in network with 18 carriers, including Blue Cross Blue Shield of Michigan, Elevance and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

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